@article { author = {El-Dissoky, R. and Attia, A. and Awad, A.}, title = {Managing Roselle Plant (Hibiscus sabdariffa L.) Requirements of Fertilizers and Irrigation Grown under Upper Egypt Conditions.}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {693-700}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.159758}, abstract = {Egypt is one of the countries that produce the best Hibiscus(karkadeh)in world, especially in Upper Egypt. Determine the fertilization and irrigation requirements consider of the most important agricultural practices for roselle plant as a medicinal plant.A field experiment was carried out during the two successive summer growing seasons 2017 and 2018 at Kom Ombo Agriculture Research Station,Aswan Governorate, Egypt (24° 28' 38.604" N and 32° 56' 50.671" E),to evaluate the response of roselle plant to NPK fertilizers rates, compost as organic fertilizer and irrigation at different intervals. Treatments were carried out as Split Split Plot Design with three replicates; the main plots were three irrigation intervals(every 3, 6 and 9 days);the split plots were organic fertilizer, Org0(without)and Org1(4 m3 fed-1 compost "Hundz soil compost"),and the sub split plots were 3 rates of NPK fertilizers(100; 75 and 50 % of recommended NPK).Results showed thatgrowth of roselle plant significantly responded to fertilization at 100% NPK, compost and irrigation every 3 days,where fruits number and weight and sepals yield showed adverse response. They were superior with fertilization at 75 and 50 % NPK,compost and irrigation every 6 days.Sepal's content of nitrogen,anthocyanin and cyaniding significantly were affected by the interaction of NPK-fertilizers rates with compost and irrigation intervals, and also the plant uptake of NPK. Results concluded maximize yield of roselle plant grown in Aswan Governorate fertilized plants with 56.25 kg N, 22.5 kg P2O5 & 27 kg K2O per fed(75% of RD NPK),along with compost application and irrigation every 6 days.}, keywords = {Hibiscus sabdariffa L,mineral NPK fertilizers,compost & irrigation intervals}, url = {https://jssae.journals.ekb.eg/article_159758.html}, eprint = {https://jssae.journals.ekb.eg/article_159758_68fcb02a44568451437d02bb9985261d.pdf} } @article { author = {El-Sheikha, A. and Hegazy, R.}, title = {Designing and Evaluating Biochar Pyrolysis Kiln}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {701-707}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.159761}, abstract = {Enhanced biochars pyrolysis Kiln was developed and used to produce biochars from rice straw and date palm fronds biomass. The pyrolysis kiln was an internal rectangular chamber with a total volume of 0.30 m3. the pyrolysis temperature either to reach 250 °C, 450 °C or 650 °C with heating rate of 5 °C min−1. Three residence times (2, 4, 5 h) were examined to study the impact of temperature on the quality of biochars. Study measurements included the chemical properties, elemental analysis, scanning electron microscopy (SEM) images and elemental compositions on the surfaces of produced biochars. Rice straw and date palm fronds biochars yield decreased with increasing pyrolysis temperature from 250 °c to 650 °c. Also volatile matter yield decreased with increasing pyrolysis temperatures. Ash content and fixed C in rice straw biochars increased with increasing pyrolysis temperatures. Where, minimum recorded ash content was 23.5 % at 250 °c temperature for 2 h residence time, and maximum recorded value was 32.5 % at temperature degree of 650 °c for 5 h residence time, with similar data trend for date palm fronds biochars but with lower ash content values. Both H and O decreased in rice straw biochars with increasing pyrolysis temperature, while C content increased. N content had no constant change behaviour as it increased until temperature of 450 °c, but decreased afterwards at 650 °c. In date palm fronds biochars pH increased with the applied pyrolysis temperatures and there was decrease in CEC with increasing temperature.}, keywords = {rice straw,date palm fronds,Biochar,Pyrolysis,elemental compositions}, url = {https://jssae.journals.ekb.eg/article_159761.html}, eprint = {https://jssae.journals.ekb.eg/article_159761_ec57777071afa198f472f28f21b782a8.pdf} } @article { author = {Rashed, Heba}, title = {Classification and Mapping of Land Productivity, Capability and Suitability for Production Crops in West El-Minia Governorate, Egypt}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {709-717}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.159765}, abstract = {The aim of this work was to classify productivity, capability and suitability indices of soils in west El-Minia Governorate, Egypt. El-Minya Governorate is considered one of the important areas of horizontal expansion in the Upper Egypt. The studied area is covers around 667020 ha and it lies between latitudes of 28°00` and 28°58`N and longitudes of 29°75` and 30°64`E. Nineteen soil profiles were dug to represent the geomorphological units in the studied area. Seven geomorphological units were developed;1-Old river terraces 2- Sand sheets 3- Limestone plateau 4- Peni plains 5-Outwash plain 6-Sand dune 7-Hilly area. In the study area there are two soil orders i.e. Aridisols and Entisols were classified as Typic Torriorthents, Typic Torripsamments and Typic Haplocalcids. Land productivity index classes of the area varies from excellent (C1) to extremely poor (C5) using Riquier etal.(1970). Based on MicroLEIS-CERVATANA model, land capability is grouped into two classes, (S2: good) covers an area of 14.68 % of the total area and the limiting factors are bioclimatic factors and (S3: moderate) covers 81.49% of the total area and the limiting factors are erosion risks, bioclimatic factors, edaphic factors and slope. Twelve crops were selected to evaluate their suitability for agriculture: wheat, maize, potato, sugar beet, cotton, soybean, sunflower, alfalfa, peach, citrus, olive and watermelon. Suitability classes according to MicroLEIS-ALMAGRA model were ranged from soils with suitability (S2) to soils with no suitability (S5) classes depending on soil limitations. The main limitations are soil texture, carbonate content and sodium saturation.}, keywords = {West El-Minia Governorate,Remote Sensing,GIS,Land productivity,Land capability,Land suitability}, url = {https://jssae.journals.ekb.eg/article_159765.html}, eprint = {https://jssae.journals.ekb.eg/article_159765_4ca73b0f7c47bbcdb6f491eb439a36f6.pdf} } @article { author = {Rashed, Heba}, title = {Assessment of Environmental Sensitivity Index to Desertification Using GIS: Case Study in West El-Minia Governorate, Egypt}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {719-726}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.159768}, abstract = {The aim of this work is the identification of the Environmental Sensitivity Index (ESI) to desertification in West El-Minia Governorate of Egypt using GIS, based on the MEDALUS model. Three main indicators in this model were considered, including: soil quality, vegetation quality and climate quality. Topographic maps, geologic maps, Landsat-8 satellite image, DEM, NDVI, land surveying, laboratory analyses and climatic data were used for estimating the ESI to desertification in the studied area. The results obtained in this study reveal that the very sensitive and sensitive areas to desertification were in the eastern and central parts of the studied area, where the soil, vegetation and climatic qualities are low. These vulnerable areas are representing 81.49% of the study area (543575 ha.). The western parts of the study area are characterized by low sensitivity to desertification and represent 14.68% of the total area (97907 ha.). The low sensitivity for desertification in the study area is due to the good soil quality and vegetation quality. Small area in the western part of the study area are medium sensitive to desertification and represent 4.43% of the total area (29579 ha.). Sand dunes and Hills occupied 3.83% of the total area. The factors that effect on the sensitivity to desertification are parent material, soil texture, soil depth, slope, vegetation type, drought resistance and erosion protection. The integration of these factors may lead to plan a successful resistance to degradation and very important for decision making in ESI to desertification in the study area.}, keywords = {Environmental Sensitivity Index,Desertification,GIS,El-Minia Governorate}, url = {https://jssae.journals.ekb.eg/article_159768.html}, eprint = {https://jssae.journals.ekb.eg/article_159768_35df6d1ccb6b3c9f1b907da8c3864083.pdf} } @article { author = {Mahmoud, A. and Yossif, T.}, title = {Estimating of Wheat Water Requirement Using Remote Sensing at El-Menia Governorate Desert Fringe-Egypt}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {727-732}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.159770}, abstract = {In hyper-arid and arid zones, the crop water requirement management is considered the vital component for sustaining the crop production particularly under drought condition. As such, further investigation is needed to determine optimal water requirements to avoid wasting water in zones already facing water shortages.Further, estimating reference Evapotranspiration(ET0)and Crop Coefficient(Kc)is fundamental requirement of agricultural water management. Thus, the aim of this study is determining an actual crop coefficient(Kc)for winter wheat using remote sensing tools [Normalized Difference Vegetation Index(NDVI)and Soil-Adjusted Vegetation Index(SAVI)] - obtained from Sentinel-2A satellite images, as well as the influence of Accumulated Growing Degree Days(AGDD)for wheat on NDVI and SAVI. Consequently,data were obtained during winter wheat season(November 2019 - April 2020)on El-Menia Governorate Desert Fringe.Data analysis indicated that the total amount of AGDD required to obtain was 1408.37 C°/season for wheat to develop in its life cycle. Moreover, SAVI value recorded the highest value(0.77)in January when the NDVI obtained 0.53 at the same period. Values of NDVI increased dynamically and acquired was 0.53 which was the highest value after wheat obtained 863.79 C°/days(heat unit)in January. Furthermore, there is a linear relation between NDVI and actual Kc which reflect a strong correlation between them for all of the growing stage. Finally, the actual water requirement was 2532.68 m3/fed/season, which is a less than value (2791 m3/fed/season)calculated FAO method. Actual crop coefficients[Kc (actual)]estimated from remote sensing(RS)using NDVI, SAVI with the AGDD equation is beneficial for irrigation scheduling, evaluation of irrigation, water use efficiency and project performance and agricultural water budgets.}, keywords = {AGDD,NDVI,SAVI,RS,KC,Wheat Water Requirement}, url = {https://jssae.journals.ekb.eg/article_159770.html}, eprint = {https://jssae.journals.ekb.eg/article_159770_28f7dded26935681481e82ce9d188284.pdf} } @article { author = {EL-Hadidi, E. and Ghazi, Dina and Rashwan, Eman and Ibrahim, Dina}, title = {Removal of Pollutants from Wastewater using Organic Materials}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {733-740}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.159776}, abstract = {Recycling wastewater in agriculture is a viable and sustainable alternative for decreasing fresh water consumption. Treated wastewater is one of the water resources that can be used for irrigation purposes if it meets the appropriate health conditions. The main objective of this study was to remove hazard elements such as B (boron) from wastewater by adsorption using organic materials. Five sources of agriculture and industrial drainage waters were collected from different locations .Two types of the wastewaters: 1) Agricultural drainage wastewater were collected from (Sherbien - Mietghamer- El-Mansoura (, 2) Industrial wastewater were collected from {Delta company of fertilizers and chemicals (Talkha) - Food factory (Aga)}.The treating organic materials were (Sawdust and compost) to remove pollutants from wastewater. The obtained results indicated that sawdust has the super priority of removing pollutants than compost. Sawdust is used as adsorbent for minimizing values of pH, EC, TDS, TSS, RSC, SAR, PS  and B. It was found that all the parameters were decreased in waste waters samples taken for study compared to before treatment. Finally, it could be concluded that, sawdust material was the best material for wastewater treatment under these experimental conditions.}, keywords = {Organic Material,sawdust,compost,Pollutants,Wastewater,Treatment}, url = {https://jssae.journals.ekb.eg/article_159776.html}, eprint = {https://jssae.journals.ekb.eg/article_159776_afae844c1b6a94b12a8a0fa74e8dce10.pdf} } @article { author = {Elnaggar, A.}, title = {Evaluation of Land Degradation in Agricultural Areas within Damietta Governorate, Egypt Caused by Urban Encroachment, Salinity, Sodicity and Loss of Fertility}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {741-749}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.54986.1007}, abstract = {Land degradation is one of the most serious problems over time, where it is the main cause of declining agricultural productivity worldwide. The main objectives of this work were to monitor and evaluate land degradation of agricultural area in Damietta Governorate caused by urban encroachment, salinity, sodicity and loss of fertility. Accordingly, Landsat images were collected at four periods of time (1989, 2000, 2014 and 2019) to study the spatio-temporal changes in agricultural land over time. The soil adjusted vegetation index (SAVI) was used for studying the vegetation cover. Soil samples were also collected from 30 soil-profiles at three soil depth intervals (0-30, 30-60, and 60-90 cm). They were analyzed for pH, EC, ESP and available NPK values. Ordinary Kriging (OK) was used for the surface interpolation of these soil properties. The obtained results indicated a significant reduction in agricultural land within Damietta Governorate from 502.45 km2 (78.94%) in 2000 to 463.66 km2 (72.85%) in 2019. Salt affected soils (SASs) were dramatically increased (particularly in subsurface layers) due to the poor drainage in the area and sea-water intrusion either from the Mediterranean Sea and/ or Manzala Lake. The status of available nitrogen and phosphorous ranged between low and moderate, whereas available potassium was very high in most of the studied locations. In conclusion, agricultural lands in Damietta Governorate are seriously affected by land degradation resulted from urban sprawl, salinity, sodicity and loss of fertility. Therefore, they need to enact laws and develop a special program for their management and remediation.}, keywords = {land degradation,Soil salinity,soil sodicity,soil fertility remote sensing,GIS}, url = {https://jssae.journals.ekb.eg/article_159780.html}, eprint = {https://jssae.journals.ekb.eg/article_159780_36093fc2be86dd734d2f9101ec90e200.pdf} } @article { author = {El Saeidy, E. and Ali, M. and Badoy, M. and Helmy, A.}, title = {Judging on the Performances of Fertilizer Feeding Unit With Rolling System}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {751-755}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160912}, abstract = {A simple rolling system was investigated and setting in the bottom of fertilizing unit to utilize the recommended amount of fertilizer adding to the seeds during/after planting. So that it can be used individually, to perform the fertilizing operation after planting, or combined with the drilling machine. The judging on the performances of fertilizer feeding unit with rolling system is identified under four different forward speeds (FS) of 2.5; 3.7; 5.0 and 8.5 km/h and different operating ratio between fertilizer unit landing wheel and rotating shaft of fertilizer rolling system (OR) under gate area (GA) of 15cm2. The granulated fertilizer (Potassium nitrate and Urea) were used in the experiment to assess the performance of the investigated rolling system on fertilizer application rate (kg/fedd.).The results of the study were compared statistically to obtain the most suitable treatments to the addition of activating doses of fertilizers during planting and growing crop service. The experimental results indicated thatthe recommended amount 12.0 kg/feddpotassium nitrate for the investigated rolling unit may be defined under forward speed of 5.0 k m/h and a Operating ratio of “1.0 to 2.0”. On the other hand, at recommended amount 30.0 kg/fedd or 33.0 kg/fedd potassium nitrate for the investigated fertilizer system may be conformed under forward speed of 3.7 km/h and with a operating ratio of “1.0 to 4.1” or “1.0 to 4.8” respectively.}, keywords = {forward speed,operating rate- fertilizer roller -drill - combined and planter}, url = {https://jssae.journals.ekb.eg/article_160912.html}, eprint = {https://jssae.journals.ekb.eg/article_160912_2fa1b72d9533728273144e025867f6c0.pdf} } @article { author = {Abd El-Razik, Eman}, title = {Reducing Nitrate Leaching through the Soil Profile using some Nano-Sized Organic Residues}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {757-764}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160913}, abstract = {Two experiments were conducted; the first one, columns on loamy and sandy soils and the second one, pots on loamy soil only for radish plants (Raphanus sativus L) to study application of nanotechnology in agricultural purposes as reducing nitrate leaching and rationalizing urea fertilizer use. The urea granules coated with 2% pomegranate peels and tea spoil powder in bulk and nanosize. Six treatments were used as follow: control (without urea U0),normal urea (U), urea coated with pomegranate peels at bulk powder (PbCU), urea coated with pomegranate peels nanopowder  (PnCU), urea coated with tea spoil at bulk powder  (TbCU), urea coated with tea spoil nanopowder  (TnCU). The leachate was collected every 3 days up to 21 days. The results showed that a significant variation in the nitrate leaching rate at two organic residues and two sizes were applied.  The highest rate of nitrate leaching obtained after three days of incubation periods for all treatments compared to other periods. The results obtained showed that U treatment had the highest rate of nitrate leaching, while PnCU treatment was the lowest rate of nitrate leaching. PnCU treatment used as best result obtained from columns experiment in pots experiment on radish plants at rates of 100 (control), 75, 50, 25 and 10% of recommended dose. The results obtained from the pots experiment showed that PnCU treatment at rate 25% urea fertilizer of recommended dose improved yield and quality of radish plants grown in loamy soil due to slow nitrogen release and reduced loss of nitrates.}, keywords = {organic residues nanopowders,coated urea,nitrates leaching,Loamy soil,radish yield productivity and rationalization urea fertilizer}, url = {https://jssae.journals.ekb.eg/article_160913.html}, eprint = {https://jssae.journals.ekb.eg/article_160913_11cf44eca8eda92e7e2cda5647e6d366.pdf} } @article { author = {Alharbi, A. and Alzoheiry, A.}, title = {Evaluation of an Improved Empirical Equation for Estimation of Reference Evapotranspiration in Arid Areas}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {765-768}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160914}, abstract = {A model for predicting the reference evapotranspiration ETo in arid areas was developed and evaluated. The model was developed based on the Jensen-Heise model with added coefficients and the original coefficients of the model were calibrated for the conditions of the area.  For evaluation, the  ETo values of the model were compared to the ETo values obtained using the FAO Penman Monteith method. The model was also evaluated using a set of weather data (14 years of data) obtained from a location 350 km from the original site. The model improved the prediction at the original site reducing the overall Mean Absolute error (MAE)from1.62 using the Jensen-Heise model to 0.84 using the Modified Jensen-Heise (MJH) model. Calibrating the values of the coefficients to the new location improved the performance of the model and made it better than the Jensen-Heise model decreasing the overall MAE from 2.75 for the Jensen-Heise model to 1.24 and 1.22 for the 3 and the 14 years calibration, respectively.}, keywords = {reference evapotranspiration,modeling,Arid}, url = {https://jssae.journals.ekb.eg/article_160914.html}, eprint = {https://jssae.journals.ekb.eg/article_160914_5b0dea19ab64242e1aebf47f74b093e8.pdf} } @article { author = {Aly, E.}, title = {Effect of Water Regimes and Polyvinyl Alcohol on Faba Bean Yield, Chemical Composition and Water Use Efficiency}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {769-777}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160915}, abstract = {Quantifying local crop response to irrigation is important for establishing proper irrigation management approaches.To apply that,  a field experiment was carried out   to  evaluate the effect of three available  soil moisture depletion(ASMD) levels, 25 %, 50 %, and 75% applied using solid set sprinkler irrigation system in combination with  four concentrations (0.00%, 0.05%, 0.1% and 0.2 %)of poly vinyl alcohol  soil conditioner. The combined effect of water regimes and different concentrations of soil conditioner was studied on faba bean (Vicia faba cvGiza 843), The experiment was carried out in the semiarid climate of northeast Farm of El-Ismailia Agricultural Research Station, El-Ismailia Governorate Egypt during two successive seasons(2012/2013 and 2013/2014).Evapotranspiration (ETa), yield productivity of faba bean, water use efficiency and macronutrients uptake were also evaluated. Results showed that the actual seasonal crop evapotranspiration (ETa) for ASMD treatments varied between (1605.36 –2482.45m3 fed-1.) in the first season (2012/2013) and (1439.26 – 2457.01m3 fed-1.) in the second season (2013/2014). There are three options to calculate seasonal ETc for faba bean crop in Ismailia condition. So, it can be use FAO-24RD, PMd or Droogers and Allen (2002)methods. Moreover,obtained data reveal that application of polyvinyl alcohol(PVA)synthetic soil conditioners (with high concentration), decreased available soil moisture depletion (ASMD) in sandy soil and caused a significant increase in faba bean yield, water use efficiency (WUE) and improved the macronutrient uptake by faba bean yield. Finally, the results clearly showed that the significant effect of PVA at (0.1or 0.2 %) concentration was most observed at 50% ASMD.}, keywords = {Irrigation regime,ASMD,Polyvinyl alcohol (PVA),Faba bean,sandy soil}, url = {https://jssae.journals.ekb.eg/article_160915.html}, eprint = {https://jssae.journals.ekb.eg/article_160915_553939aabf7c3d90c7ca0037a271ddb3.pdf} } @article { author = {Wasfy, K. and Awny, A.}, title = {Production of High-Quality Charcoal Briquettes from Recycled Biomass Residues}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {779-785}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160916}, abstract = {The aim of the present study is to produce high-quality charcoal briquettes from biomass residues. Experiments were conducted under conditions of three different biomass residues (rice straw, cotton stems and corn stalks), two binder materials (starch and carton paper) under two different concentrations (5 and 7 wt %) and four operating pressures (0.5, 1.0, 1.5 and 2.0 MPa). The produced charcoal briquettes were evaluated from physical, chemical, thermal and mechanical properties. The charcoal briquettes quality was evaluated and compared with original form of raw biomass residues.Results clarified that high-quality charcoal briquettes could be obtained from cotton residues by operating the press machine under pressure of 1.5 MPa at starch binder material with a concentration of 7 wt%. The previous conditions achieve appropriate charcoal briquette of 400 kg/m3 bulk density, 85.23 % fixed carbon, 6.10 % volatile matter, 4.05 % ash content, 32.21 MJ/kg calorific value, 83.63 % thermal efficiency and 213.79 kg/cm2 compressive strength.}, keywords = {Biomass residues,Biomass recycling,Charcoal production,Binder material,Briquettes,Product quality}, url = {https://jssae.journals.ekb.eg/article_160916.html}, eprint = {https://jssae.journals.ekb.eg/article_160916_6ebccfcf07295854e319031229ce88d0.pdf} } @article { author = {Fouda, K.}, title = {Quality Parameters of Snap Bean Plant as affected by Compost Town Refuse, K-Levels and Bacillus cerculans}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {787-792}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160917}, abstract = {Field experiment was conducted out during season of 2017 as a randomized complete block with 9 treatments and replicated three times. The experiment location is located in the Experimental Farm of the Faculty of Agric. El-Mansoura Univ. to study the effect of compost town refuse and K-levels in presence of Bacillus cerculans on the growth, yield and pods quality snap bean plant.The obtained results could be summarized as average values of vegetative growth parameters, chemical content, yield and its component, quality of snap bean seeds and available K were realized with using CTR+ 75%K +BS. While concentrations of heavy metals in seeds, available N,P, K, DTPA-extractable Pb, Ni and Cd mg.kg-1 were recorded with using CTR as source of organic manure all comparing with control.}, keywords = {compost town refuse,K-fertilization,potassium dissolving bacteria and beans}, url = {https://jssae.journals.ekb.eg/article_160917.html}, eprint = {https://jssae.journals.ekb.eg/article_160917_0387e6a69d8c39e0e22924d271183778.pdf} } @article { author = {El-Sherpiny, mohamed and Baddour, A. and El-Kafrawy, M.}, title = {Effect of Zeolite Soil addition under Different Irrigation Intervals on Maize Yield (zea mays L.) and some Soil Properties}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {793-799}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160919}, abstract = {The adequate supply of irrigation water is a crucial factor controlling the growth and productivity of crops.Under water poverty conditions in Egypt and most arid regions, sustaining the irrigation water in the root zone as long as possible becomes very necessary.Consequently, two field trials were performed aiming  to evaluate the effect of zeolite soil addition of as main plots[ Z0:without zeolite(control)and Z1: with zeolite at rate of 10 Mg h-1]under three irrigation intervals as subplots [I1: irrigation every 12 days (traditional irrigation) in addition to irrigation every 14(I2)and 16(I3) days, which represented the deficit irrigation treatments]. The execution of the research trail was done in a split-plot design with three replicates. Maize was used as an experimental plant based on its significant response to water alterations in the root zone. Biochemical plant characters including total chlorophyll, total phenols and proline contents were measured in leaves at period of 60 days from sowing. In addition, vegetative growth parameters (plant height) as well as quantitative (e.g., No.of grain ear-1,No.of rows ear-1, grain and biological yield) and qualitative (i.e.,carbohydrates, protein and oil)yield characteristics were determined at harvesting stage. Findings of this study showed that the zeolite soil addition before sowing (Z1) with irrigation interval of maize plants every14days (I2) as combined treatment realizes better results for improving quantitative and qualitative yield characteristics than non-addition of zeolite (Z0) under traditional irrigation interval (I1:every12days).Post-harvest soil analysis indicatedthat the usage of zeolite improves some studied soil properties e.g., bulk density, total porosity, CEC and FC.}, keywords = {Zeolite,Irrigation intervals,water poverty and soil properties}, url = {https://jssae.journals.ekb.eg/article_160919.html}, eprint = {https://jssae.journals.ekb.eg/article_160919_771bea7a83e4acbc113e4496da6766d6.pdf} } @article { author = {El-Sheikha, A. and Al-Rajhi, M. and Amer, Hagar}, title = {Manufacture and Evaluation of an Alternative Feeds Production Machine}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {801-808}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160921}, abstract = {The main objectives of this research are to fabricate a machine for producing a special feed with an easy operating system, that is suitable for small breeders, with low operating costs and high productivity, as well as substitution of barley grains in the feed components by sprouted barley in order to reduce costs and to increase amount of green feed and percentage of protein. The fabricated machine consisted of four main units; power and power transmission unit; chopping unit; mixing unit and pelletizing unit. Experiments were conducted to test the fabricated machine under three levels of moisture content for sprouted barley (70.09, 79.71 and 81.35 %); three different die holes’ diameters (4, 6 and 8 mm); and three mixing times (10, 15 and 20 minutes). The results indicated that the mean bulk density was 443.3 Kg/m3.The mean shear force was 0.68 N. The mean vertical and horizontal rupture forces were 3.04 and 4.11 N, respectively. The mean machine productivity was 31.78 kg/hr. The mean mixing efficiency was 81.14 %. The mean pelletizing efficiency was 75.75 %. The mean specific energy requirement 74.47 Kw.hr/Mg. The chemical analysis of produced pellets indicated that ash content was 9.1 %, protein was 21.26 % and fat was 1.98 %, so it is recommended to use the fabricated machine for producing alternative feed.}, keywords = {Sprouted barley,chopping,Mixing,pelletizing,alternative feeds}, url = {https://jssae.journals.ekb.eg/article_160921.html}, eprint = {https://jssae.journals.ekb.eg/article_160921_7b4519e06188ae6e30e3c8094d02ff9c.pdf} } @article { author = {Awaad, M. and El-Shazely, M. and Taha, M. and Abdalla, I.}, title = {Effect of different nitrogen sources combination with bio-fertilizers on yield and chemical composition of canola and sesame crop}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {809-816}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160923}, abstract = {Two field experiments were carried out during winter season (2016/2017) and summer season (2017) an clay soil to evaluate the effects of bio-fertilizers (Azospirillum and Azotobacter) and different  nitrogen fertilizer sources i.e., ammonium nitrate (AN), slow release nitrogen fertilizer ureaform aldehyde (SRF) and organic fertilizer (OF) at rate of 100% in absence of bio fertilizer and at rate of 75% nitrogen from recommend dose for both canola as winter season crop and sesame as summer season crop on the growth, chemical composition as well as concentration  and yields of protein and oil in both canola and sesame crops. The results of the analyzes showed that the use of bio-fertilizer with mineral nitrogen fertilizer increased plant growth rates, (number of pods/plant, height plant, weight of 1000 Seeds (g), number of seeds/ capsule, seeds and straw yields, biological yield as well as the harvest index of both canola and sesame plants compared with mineral fertilizer AN and SRF alone. The highest values of concentration and uptake of N, P and K in both straw and seeds were obtained by application of nitrogen fertilizer with bio-fertilizer. Interaction between nitrogen fertilizer and bio-fertilizer achieved suitable protein and oil percent and could be improve canola and sesame seeds quality. On the other hand, some soil chemical properties (EC, pH and O.M) were enhanced due to application of mineral nitrogen with bio-fertilizer.}, keywords = {nitrogen fertilizers,Bio-fertilizer,Canola and Sesame}, url = {https://jssae.journals.ekb.eg/article_160923.html}, eprint = {https://jssae.journals.ekb.eg/article_160923_592b311be0c5e7d8528af4f4c4eca011.pdf} } @article { author = {Badr,, M.}, title = {Infrared / Convection Dryer Utilization for Drying of Pomegranate Peels}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {817-823}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160924}, abstract = {The aim of this study investigated the effects of some various variables on drying a thin layer of pomegranate peels exposed to infrared and hot air. Three different levels of infrared power, namely: 150, 200 and 250 W and three different exposure distance "the distance between infrared heater and samples" of dying are 10, 15 and 20 cm with air temperature 40 oC and air velocity 1.5 m/s were studied. Moisture ratio and drying time affected by infrared power and exposure distance, compatibility of experimental data to some drying models, effective diffusivity "Deff", Specific energy consumption "SEC "and rehydration were also studied. The results show that the higher the infrared power and the lower exposure distance the lower the moisture ratio and the total drying time reduced, and it was found that the least drying time was 30 minutes with infrared power 250 W and exposure distance 10cm. Lewis model was best fitness to the experimental data with average R2 0.9972. The maximum values of Deff were recorded at highest infrared power 250 W. The rehydration ratios ranged between 0.80 to 2.42 under various dryin conditions.}, keywords = {Infrared,convection,pomegranate,peels}, url = {https://jssae.journals.ekb.eg/article_160924.html}, eprint = {https://jssae.journals.ekb.eg/article_160924_6f72bb0e7bab9c2da288df8c11491ba4.pdf} } @article { author = {mohamed, tarek and Azab, A. and Hamed, A. and Ebrahim, T.}, title = {A Metering Nano Fertilizer Incorporated with Potato Planter}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {825-833}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160926}, abstract = {A potato belt bed planter was modified by adding a precision mechanical device for nano fertilizers. It was consisted of a steel land wheel transmitted the motion to a metering unit via a transmission system designed to operate without effect on its performance. The planter was tested at five metering gate width of 5,10,15,20, and 25 mm, five metering rotary distributer reduction ratio at four planting forward speeds 0.97, 1.11, 1.25 and 1.39m/s. The results indicated that the required application rate (0.028 Mg/feddan) was achieved at reduction ratio between the land wheel and fertilizer rotary distributer (1:1.56), it was 0.0299,0.0297,0.0288, and 0.0291 Mg/feddan at forward speeds 0.97,1.11,1.25, and 1.39 m/s respectively. The field capacity before and after the modification was 1.5, 1.67, 1.82, and 2.01 feddan/h at forward speeds 0.97, 1.11, 1.25, 1.39 m/s respectively. The specific energy was 7.20, 8.29, 7.15, and 7.30 kW.h /feddan at forward speeds 0.97, 1.11, 1.25, 1.39 m/s respectively. The planter total operating costs without modification was 568.5 EGP/h and 605.5 EGP/h with modification. The cost of planting one feddan without modification was 312.3 EGP and 332. 7 EGP with modification. The planter indicated (NPV) of 41666.4EGP at 14 % interest rate. Also, the planter (PBP) was 3.1 year. The potato average yield in the experimental area with Spunta  variety was 15.1 Mg/feddan with common fertilization and 16.2 Mg/feddan with nano fertilization. This means the modification success to add the required amount of fertilizer and added 2199.6 EGP to each feddan profit.}, keywords = {nano fertilizer,Fertilizer metering system,Micro granules}, url = {https://jssae.journals.ekb.eg/article_160926.html}, eprint = {https://jssae.journals.ekb.eg/article_160926_24f21f58297d05742a4b23f6e1ba6b8f.pdf} } @article { author = {Ibrahim, M. and Faiyad, Riham and El-Gamal, I.}, title = {Impact of Foliar Spraying of some Potassium Sources and Boron Levels on Sugar Beet Quantity and Quality}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {835-844}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160928}, abstract = {Two field experiments were conducted during the two successive winter seasons of 2017/2018 and 2018/2019 at Tag Al-Ezz Agricultural Research Station, Agricultural Research Center, Dakahlia Governorate, Egypt to study the effect of foliar spraying of some potassium sources i.e. potassium silicate at 4ml L-1, potassium humate at 4ml L-1 and a mixture of them as main plots and foliar spraying with four levels of boron (0.0, 100, 150 and 200 mgL-1) as sub plots as well as their interactions on nutrients concentrations, yield components, quality characters and yield of sugar beet (Beta valgaris var. saccharifera L. Faten variety). The experimental design was split-plot design system. Spraying sugar beet plants with a mixture of K-Silicate and K-Humate produced the highest values of all studied parameters i.e. NPK concentrations, yield components, quality characteristics and yields followed by spraying with K- Humate, then spraying with K- Silicate and control in a descending order, with exception juice purity that had inverse trend in both seasons. Spraying sugar beet plants with a solution of boron at a rate of 100 mgL-1 was more effective than other studied boron levels in increasing nutrients concentrations, yield components, quality characters and yields and gave the highest values of them during both seasons. It can be concluded that maximum sugar beet nutrients concentrations, yield components, quality characters and yields were significantly affected by the interactions between the foliar spraying of K-Silicate+K-Humate mixture and boron at a rate of 100 mgL-1 under the environmental conditions of Dakahlia Governorate, Egypt.}, keywords = {Sugar beet,potassium silicate,potassium humate,Boron,foliar spraying}, url = {https://jssae.journals.ekb.eg/article_160928.html}, eprint = {https://jssae.journals.ekb.eg/article_160928_4d1996dbcb5e2196ad396ed748e29edd.pdf} } @article { author = {Mahmoud, Amal and Attaher, Samar and Snyder, Richard}, title = {Evaluation of Surface Renewal VS. Eddy Covariance Methods to Estimate Cereal Crops Evapotranspiration}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {845-851}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160929}, abstract = {This study aims at evaluating the application of using the surface renewal “SR” method against Eddy Covariance “EC” method, for direct estimation of crops evapotranspiration “ETc” of wheat and rice crops, cultivated under the agro-climatic conditions of the old lands in the Nile Delta region in Egypt. Two field experiments were conducted at Qalubia governorate, in 15 feddan experimental field. The assessments were conducted for rice and wheat crops during the agricultural seasons of 2016. During the two seasons, the surface energy fluxes were recorded each 30 min, including net radiation, soil heat fluxes, sensible heat fluxes by EC method, and sensible heat fluxes by SR method. The SR method was calibrated against the EC method, and the determined latent heat fluxes “LE”of the both methods show high correlation with R2 around 0.98 for both crops. The comparison between ETc-SR and ETc-EC showed statistically good performance, withNRMSE of 11% for rice, and 16% for wheat. The rice results showed that the widely used ETc-FAO was a slight higher than ETc-SR and ETc-EC, by 5% and 0.7%, respectively.  Wheat results showed that the ETc-FAO was higher than ETc-SR and ETc-EC by 30% and 32%, respectively. The results of rice and wheat could be promising for further improvement in using the SR method as reliable, accurate, and cost-effective method to estimate ETc for field crops, while more validation is still needed to cover different types of agricultural practices. }, keywords = {rice,wheat, water requirements,Energy balance approach}, url = {https://jssae.journals.ekb.eg/article_160929.html}, eprint = {https://jssae.journals.ekb.eg/article_160929_f40f392b190d11869cbbdf1c6007c27a.pdf} } @article { author = {Darwish, E. and Moussa, A.}, title = {Some Phesoengineering Properties of Okra Seeds Determination}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {853-856}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160931}, abstract = {Due to the lack of information about the engineering properties of okra seeds in Egypt. Some physical, mechanical and aerodynamic characteristics of okra seeds were studied to set a database for properties related to grading, separating, handling, cleaning, storage and other future processing units. The study of experiments conducted on okra seeds at 6.31 % moisture content dry basis. The study revealed that the average value of length, width, thickness, geometrical and arithmetic mean diameters, volume, sphericity, coefficient of contact surface and surface area of okra seed were 5.85, 4.40, 4.04, 4.68, 4.75 mm, 56.12 mm3, 80.43%, 30.77% and 69.77 mm2, respectively. While; the mean value of bulk and true densities, individual seed mass, one thousand seed, porosity and projected area were 0.633g/cm3, 0.898g/cm3, 0.067 g, 61.27 g, 33.81 % and 22.46 mm2, respectively. The study also revealed that the average value of repose angle was 29.15°. While; the lowest values of static friction coefficient for okra seeds were on stainless steel sheet followed by galvanized iron, plywood and the highest on rubber were 0.271, 0.328, 0.402 and 0.466, respectively. The study also concluded that the rupture force and deformation ratio of okra seeds were 82.89 N and 4.33 %. The mean values of terminal velocity and coefficient of drag were 8.40 m/s and 0.70, respectively. Also; the mean value of Reynolds number was 2621 therefore; the pattern of air flow is in the range of transitional flow.}, keywords = {okra,physical,mechanical and aerodynamic properties}, url = {https://jssae.journals.ekb.eg/article_160931.html}, eprint = {https://jssae.journals.ekb.eg/article_160931_de7317382343c2a054ba006a4de7849d.pdf} } @article { author = {Abdel-Gawad, A. and Morsy, A.}, title = {Manure Fertilization for Soybean Crop Production Inoculated with Rhizobium Bacteria Catalyzed by some Micronutrients Foliar Spraying}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {857-862}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160932}, abstract = {A field study was carried out during two consecutive summer seasons of 2019 and 2020 at the Experimental Farm, Faculty of Agriculture, Al-Azahar University, Assiut Governorate (27° 12- 16.67= N latitude and 31° 09- 36.86= E longitude) to examine the impact of manure and some micronutrients application company with Rhizobium bacteria on soybean crop growth and its yield The experiment was laid out in a randomized complete block design with three replicates. The trial consisted of nine treatments as follows (T1: control, T2: inoculation with Rhizobium, T3: sheep manure addition, T4: pigeon manure addition, T5: Rhizobium+ iron + manganese + zinc, T6: Rhizobium + sheep manure, T7: Rhizobium + sheep manure + micro-nutrients, T8: Rhizobium + pigeon manure, T9: Rhizobium + pigeon manure + micronutrients. Inoculation of soybean seeds with Rhizobium and organic fertilization and spraying with micronutrients (T9) resulted in a significant increase in the tested traits (plant height, leaves No./ plant, branches No/ plant, pods No./ plant, seeds No./ pod, seeds No./ Plant, 100-seedweight, seed and biological yields. The T9 treatment gave the highest seed yield of 1.46 and 1.49 ton/ fed that increased by 25.86 and 26.27% in the 1st and 2nd season respectively compared to control treatment (T1) that realized 1.16 and 1.18 ton/ fed for the corresponding seasons. Seed yield was the strongest positively significant correlated with all tested traits in both seasons. So, implement balanced and timely nutrient management practices for soybean contributes to the sustainable growth yield in a good quality.}, keywords = {Soybean,Rhizobium bacteria,Sheep manure,Pigeon manure,Micronutrients,production}, url = {https://jssae.journals.ekb.eg/article_160932.html}, eprint = {https://jssae.journals.ekb.eg/article_160932_df687472c58704df79484a2d1c1e9b4b.pdf} } @article { author = {El-Mahdy, Rasha and Fayaid, Riham and Rashwan, Eman}, title = {Sustain Wheat Production and Avoid Saline Water decline by using Stimulation Substances and Foliar Application of Micronutrients under North Sinai Soils Condition}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {863-872}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.160934}, abstract = {To maximize the beneficial effect of using some stimulation substances potassium Fulvate and Yeast along with foliar application of micronutrients on wheat crop productivity and properties of sandy soils under irrigation with saline ground water. Two field trials were conducted during two successive winter growing seasons of 2016/17and 2017/18 at Agricultural Experimental Research Station at Al-Arish, Agricultural Research Centre (ARC), Al-Arish Province, North Sinai Governorate, Egypt. The main treatments were Stimulants substants included four treatments (i. e. control, potassium Fulvate (KFv), yeast (Yst) and KFv+Yst) and the subplot treatments were micronutrients foliar application included three treatments (i.e. control, chelated form (Fe+Zn+Mn-EDTA) and mineral form (Fe+Zn+Mn-SO4). The treatments were layout in split plot design with three replicates. The results indicated that application of (KFv+Yst) with foliar application of micronutrients was the best treatment for vegetative growth traits i.e. fresh and dry weight (FW and DW), plant height (PH), chlorophyll content (Chl) and chemical constituents in above ground parts (N, P and K as macronutrients and Fe, Zn and Mn as Micronutrients) as well as grains yield, while the sodium (Na) content of grains was decreased. The highest values of soil available nutrients were recorded with the treatment of (KFv+Yst) and foliar application with micronutrients in the mineral form. Thus, it could be concluded that, the fertilization with potassium fulvate and yeast along with foliar application of micronutrients in mineral sulfate form was considered the most suitable treatment for obtaining the highest grains yield of wheat plants.}, keywords = {Potassium fulvate,yeast,Micronutrients,Wheat,saline water}, url = {https://jssae.journals.ekb.eg/article_160934.html}, eprint = {https://jssae.journals.ekb.eg/article_160934_63d42f6d4c09f6e6f30afb270de1507f.pdf} } @article { author = {Othman, Maha and El-Moursy, Rasha}, title = {Impact of Applying Potassium Fulvate and Boron on Sugar Beet Yield and Quality}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {873-880}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.166425}, abstract = {Two field experiments were conducted out in a lysimeter at Sakha Agricultural Research Station, Kafr Elsheikh Governorate, Agricultural Research Center, Egypt, during 2018 - 2019 and 2019 - 2020 winter seasons to investigate the influence of four potassium fulvate treatments (without potassium fulvate, soil application, foliar application and soil+ foliar application) and foliar application with boron in three levels (without, 20 and 40 mg B/liter) and their interactions on growth, yield, its components and quality of sugar beet (triple cross Farida hybrid as multigerm variety). A strip-plot design with three replicates was used. The obtained results showed that soil application of potassium fulvate (4  Liters fed-1) besides spraying twice with potassium fulvate (5 cm3/liter water) gave the highest effective values of yield components, chemical constituents, quality and yields. Foliar application of boron (40 mgL-1) was more effective than other treatments (without, 20 mg B/liter). It could be concluded that the interaction between foliar applications with boron (40 mgL-1) after 50 and 70 days from sowing in the presence addition of soil application with potassium fulvate (4  Liters fed-1) besides spraying twice with potassium fulvate (5 cm3/liter water) achieved the highest growth, yield and its components of the sugar beet under the conditions at Kafr Elsheikh Governorate, Egypt.}, keywords = {Sugar beet,Potassium fulvate,boron levels,foliar application,Yield quality}, url = {https://jssae.journals.ekb.eg/article_166425.html}, eprint = {https://jssae.journals.ekb.eg/article_166425_70acc5a5367d7a1c00f5a2bfaed04d2f.pdf} } @article { author = {El-Mahdy, Rasha and Anwar, Dina}, title = {Improved Efficiency of P Fertilization with Bio and Organic additives on Growth, Seed Quality and Soybean Yield}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {881-891}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.166426}, abstract = {Two field experiments were conducted at Experimental Farm of Tag El-Ezz, Agricultural Research Station, Dakahlia Governorate, Egypt, during two successive summer seasons of 2019 and 2020 to study the improving efficiency of different P mineral sources with bio, and organic additives as combined treatments on growth performance, quantitative and qualitative productivity of soybean plants (Glycine max L., cv. Giza 111). A split-plot design with three replicates was used, representing three sources of phosphorus fertilizers (control, Ordinary superphosphate OSP, and Mono ammonium phosphate MAP as the main plots, six bio and organic treatments (control, arbuscular mycorrhizal fungi AM, vermicompost V, potassium humate KH, AM+V, and AM+KH as the subplots. The results were collected briefly as follows: MAP gave the highest values of vegetative growth, yield, its components, and seed quality compared to (OSP) or control. AM+KH had the best-aforementioned adjectives compared to other bio and organic additions, where the plants fertilized with AM+V came in the second-order followed by KH then V, and lately AM alone. The combination of MAP and AM+KH was the superior treatment effect on all studied traits compared to the other treatments, the highest P use efficiencies values and (benefit: cost) ratio were achieved from this reaction. The available N, P, K and pH value of soil after the harvest of soybean were improved significantly due to the integration of inorganic fertilizers with bio and organic fertilizers.}, keywords = {phosphorus fertiliz,Mycorrhiza,vermicompost,potassium humate and soybean}, url = {https://jssae.journals.ekb.eg/article_166426.html}, eprint = {https://jssae.journals.ekb.eg/article_166426_1564ca351483c3f2660e18dcde278d6a.pdf} } @article { author = {Nassar, K. and ELSonbaty, Amany and El –Shaboury, Hayam}, title = {Influence of Potassium Humate and Micronutrients Foliar Nutrition on Sesame Productivity and Quality under Alluvial Soils of Nile Delta}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {893-900}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.170646}, abstract = {Two field experiments were conducted at a private farm on Gadila Village, Mansoura City , Dakahlia Governorate  , Egypt under alluvial soils of Nile delta, during 2017 and 2018 summer growing seasons as sake of studying the effect of potassium humate (KH) sprayed singly or in dual,triple and quadruple combinations (9 mixtures) with some micronutrients(Fe , Mn and Zn )on leaves photosynthetic pigments ; yield and yield attributes as well as nutritive and biochemical contents of sesame seeds. KH and micronutrients were sprayed; once , at 21 days after sowing (DAS) ; twice, at 21 and 35 DAS and triple, at 21 , 35 and 50 DAS. So ,a split plot arrangement with three replications was used , where number of foliar spraying times for both KH and micronutrients were allocated in the main plots however , nine treatments of different combinations of KH and micronutrients were randomly distributed in the sub – plots . The highest values for all traits mentioned before were attained upon foliar spraying of sesame plants, triple compared to those sprayed twice and once, respectively. Spraying KH and micronutrients simultaneously in a quadruple combination i.e.( KH + Fe + Zn + Mn )also gave the best values  followed by their additions in triple ,dual combinations however,  spraying of KH alone achieved the least values . Therefore , spraying sesame plants with( KH + Fe +Zn +Mn )three times achieved the highest increments for all criteria under investigation related to the quantity and quality of sesame .}, keywords = {Potassium humate (KH),Micronutrients,sesame,productivity,Quality}, url = {https://jssae.journals.ekb.eg/article_170646.html}, eprint = {https://jssae.journals.ekb.eg/article_170646_d988ad3fdb019eb514ee8b359fb492ae.pdf} } @article { author = {Abd Allah, Wessam and Abd El-Wahab, M. and Abu-Hashem, Muna and El-Shal, Hanan}, title = {Improving The Performance Of Stepped-Type Solar Still Using External Booster Mirrors}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {11}, number = {12}, pages = {901-907}, year = {2020}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2020.174211}, abstract = {In an attempt to improve its performance and productivity, a simple low cost modification of stepped-type solar still (SSS) was presented by installing external booster mirrors fixed at its top and bottom edges. The SSS’s step width was 4cm and depth of 2cm and black-painted aluminized absorber within area of 0.46 m2. Thus, two SSSs units (conventional without mirrors and modified with same fabricated specifications but with booster mirrors) were investigated at Faculty of Agriculture, Zagazig University, Zagazig, Sharkia Governorate, Egypt in order to assess and compare their performance represented of productivity, indicated temperatures, some thermo-physical properties and daily efficiency under three different water salinity levels of 15000, 35000 and 45000 ppm under solar radiation flux range of 270-1143 and 267-998 W/m2 in case of modified and conventional SSS, respectively, and ambient temperature range of 31.2 to 37.6 oC. The obtained results revealed that, the indicating maximum temperatures gained by modified SSS comparing to the conventional one increased by 14.3, 11.5, 8.6 and 2.5% for glass, water, absorber and vapor, respectively. The daily yielded productively for the modified SSS were 9.91, 7.87 and 6.97 l/m2.d with increase of 84.2, 60.9 and 55.6 % compared to the productivity of the conventional SSS at the previous water salinity levels, respectively. Furthermore, the annual cost of one liter distillate (in EGP; 1 $ = 15.7 EGP) for both conventional and modified SSSs was estimated as (1.33 and 0.88), (1.46 and 1.107) and (1.6 and 1.25) at the same previously mentioned salinity levels, respectively.}, keywords = {stepped solar still,Booster mirrors,Thermo-physical properties,Daily efficiency,cost}, url = {https://jssae.journals.ekb.eg/article_174211.html}, eprint = {https://jssae.journals.ekb.eg/article_174211_7f801427db1b1199c139a90c154c23a9.pdf} }