Distribution of Nutrients in Snap Bean Plant Organs as Affected by N, P and K Fertilizer Levels
A.
El-Ghamry
Soils Department, Faculty of Agriculture, Mansoura University
author
G.
Baddoor
Soils, Water and Environment Research Institute, Agricultural Research Center, Giza
author
Dina
Ghazi
Soils Department, Faculty of Agriculture, Mansoura University
author
M.
EL Hassanin
Soils Department, Faculty of Agriculture, Mansoura University
author
text
article
2017
eng
A pot experiment was planted at the experiments Farm at Mansoura University Faculty of Agriculture, during the summer season of 2015 to monitor the effect of various levels of nitrogen (N), phosphorus (P) and potassium (K) fertilizers treatments on plant vegetative parameters, yield and NPK % in organs (root, stem, leaves and grains) of snap bean plant. The trial was hold out in a complete randomized block design (CRBD) with three replicates. The results revealed that application of different levels of NP and K fertilizers have a significant effect on growth parameters, yield components, chlorophyll a, b and total and concentration of N, P, K, iron, copper and zinc in different organs (root, stem, leaves and grains) of snap bean plants. All studied parameters increased by increasing the application rates of N, P and K fertilizers from zero to 150% from the recommended dose. Concentration of NPK in the leaves and grains of snap bean plant were significantly increased with increasing the NPK levels. On the different of this tendency; the mean means of NPK concentration were significantly decreased with increasing NPK levels in the roots and stems of snap bean plants. Also, the values of all the investigated micronutrients were significantly increased with increasing the NPK levels up to the level of 100% from recommended doses. More addition of NPK at the rate of 150% from recommended doses of NPK significantly decreased the average values of these micronutrient under those obtained from the plants treated with 100% from recommended doses of NPK. The distribution of macro- and micro-nutrients in the snap bean plant can be arranged in following order stems < roots < grains < leaves.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
209
214
https://jssae.journals.ekb.eg/article_37470_56c5c8988c17efd554f7fa6d0470c3a4.pdf
dx.doi.org/10.21608/jssae.2017.37470
Effect of Mineral Nitrogen Fertilization and Compost on Stevia Yield and its Profitability.
Basma
Rashwan
Soil, Water and Environ. Res. Inst., Agric. Res. Center, Giza, Egypt.
author
H.
Ferweez
Food Sci. and Techno. Dept. ,Fac. Agric. New Valley, Assiut University, Egypt.
author
text
article
2017
eng
Stevia (Stevia rebaudiana Bertoni) was recently introduced to Egyptian agriculture in order to produce a natural sweetener (Steviol glycosides ) instead of sugar (Sucrose) to cover some of the lack of sugar production, which reached annually about 0.8 million ton. So, a field experiment was carried out at Mallawi Agriculture Research Station , Minia Governorate , Egypt, during two successive seasons (2014 and 2015) to study the effect of different levels of mineral N fertilization and compost on yield and its quality of stevia (Stevia rebaudiana Bertoni) under Middle Egypt conditions. The experimental design was a split plot in three replicates and the main plot were devoted N fertilizer levels ( 40, 60 and 80 kg N fed-1) while compost levels (0, 3 and 6 ton fed-1) were allocated in the sub plot. The obtained results revealed that N fertilizer level and/or compost level had a significant effect on plant height (cm) , fresh and dry leaves weight (g plant-1) , N, P& K contents of stevia leaves and N uptake kg fed-1, dry leaves yield kg fed-1 , stevioside (St %), rebaudioside A (Rb%), stevioside yield (kg/fed) and rebaudioside A yield (kg fed-1), the remained nutrients ( N,P & K (ppm) and OM % ) in the soil post-harvest of stevia in two growing seasons, except P% of leaf in the 2nd season for N fertilization. A significant interaction was scored between N fertilizer level and compost rate with regard to plant height (cm) , fresh and dry leaves weight (g plant-1) , N % of stevia leaves and N uptake kg fed-1 , dry leaves yield kg fed-1 , stevioside (St %), rebaudioside A (Rb%), stevioside yield (kg fed-1) and rebaudioside A yield (kg fed-1) of steviain the two growing seasons. From the present study , it may be concluded that the application of 60 kg mineral N fertilizer + 6.0 ton compost fed-1 was the best treatment for improving the yield and quality of stevia and is advisable to achieve the highest values of rebaudioside A (298.99 and 297.74 kg fed-1) ,and net profit of stevia.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
215
222
https://jssae.journals.ekb.eg/article_37379_5e93c75eadc295599f29ac1db3a3e842.pdf
dx.doi.org/10.21608/jssae.2017.37379
Impact of Drought Stress on Maize (Zea mays) Plant in Presence or Absence of Salicylic Acid Spraying
Dina
Ghazi
Soils Department, Faulty of Agriculture, Mansoura University, Mansoura, Egypt.
author
text
article
2017
eng
A field experiment was carried out during the summer season of 2013 at the Experimental Farm, Faculty of Agriculture, Mansoura University to study the impact of spraying salicylic acid (SA) on mitigating the negative effect of drought conditions on maize hybrid plants (cross cv. Giza 10). The experiment was laid out in split plot design with three replications. In the present study, three levels (100, 75 and 50 % of water holding capacity) were arranged as main plots and two foliar applications of salicylic acid (zero "sprayed with tap water as control treatment" and 200 mg.L-1) as sub-plots. The results showed that growth parameters, plant height (cm), fresh and dry weight of flag leaf (g), yield components (cob length (cm), no of grains/cob, 100 grains weight (g), grain yield, straw yield, cob yield ton/fed), mineral content of leaves (N, P and K in flag leaf), seed quality characteristics (crude protein, oil content and total carbohydrates %) were significantly decreased with drought stressat 50% of water holding capacity. While, the effect of salicylic acid sprayed at rate of 200 mg.L-1 on the previously mentioned traits recorded positive impact of high water deficit as compared with the control treatment (zero mg L-1 SA) which gave the lowest parameters. N, P and K concentrations in tested soil were significantly response (P ≤ 0.05) to drought stress, foliar spraying of (SA) and their combinations. Reduced level of water application at 50% resulted in decreases in the concentration of available N, P and K in soil. The highest concentrations of available N, P and K in soil were recorded at 75% of water holding capacity combined with 200 mg.L-1 SA, while the lowest concentrations were recorded at 50% of water holding capacity in the absence of spraying with SA. It can be conclude that, foliar application of salicylic acid at rate of 200 mg.L-1 could be used as appropriate growth regulator for reducing the negative effects on maize plant under water deficiency conditions.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
223
229
https://jssae.journals.ekb.eg/article_37382_a48df775abae44f615cafe891b2a1cf5.pdf
dx.doi.org/10.21608/jssae.2017.37382
Impact of Amino Acids and Humic Substances Application on Some Soil Chemical Properties Along with Nutritional Status and Productivity of Wheat Grown under Saline Conditions
Mona
Kenawy
Soil, Water and Environ. Res. Inst., Agric. Res. Center, Giza, Egypt
author
text
article
2017
eng
A field experiment was carried out on saline sandy clay loam soil at Gelbana Village District Sahl-el Tina, North Sinai Governorate, Egypt during two successive winter seasons (2013/2014 and 2014/2015) to study the effect of amino acids (A) , humic substances (H) and amino humate (AH) on soil chemical properties along with nutritional status and productivity of wheat grown under salinity stress condition, using a complete randomized block design with three replicates. The soil was irrigated from El-SalamCanal (a mixture of Nile and agricultural drainage water) .Two rates of amino acids (5Lfed-1) and (10 Lfed-1) along with two rates of humic substances (5Lfed-1) and (10 Lfed-1) as well as two rates of amino humate (5Lfed-1) and(10 Lfed-1) were applied. Results indicated that pH values of the soil after harvesting were slightly decreased as affected by all studied treatments for both tested seasons. Values of EC and ESP were, however, positively affected being with lowest EC values recorded in presence of humic substances (H2) treatment at both tested seasons. Positive response was detected for each of CEC, O.M, nutrient availability in soil after harvesting as well as content of (N,P and K) for straw and grains, the second rate of amino acid (A2) giving the highest values of available N followed by the second rate of amino humate (AH2); as well as the high rate of humic substances (H2) was more responded for increasing P , K availability followed by the second rate of amino humate (AH2). Generally, applied treatments increased significantly soil micronutrients (Fe,Mn,Zn and Cu) availability as compared to control treatment at both studied seasons; increasing the rate of applied amino acids and humic substances caused a significant gradual increase for both studied seasons under investigation. Amino humate (AH2) treatment gave the highest values of (N, P and K) content of grains and straw for wheat at both studied seasons as compared to (AH1) treatment. K/ Na ratio increased gradually by increasing the rate of applied treatments; such positive effect of both tested seasons may be arranged in descending order : amino-humate2> amino acid 2> humic sub. 2 > amino-humate1> amino acid 1> humic sub 1 as compared to control. Increasing the rate each of amino acids and humic substances caused a significant gradual increase in straw and grains of wheat for both studied seasons ; humic sub.( H2 ) was superior as compared with amino acid (A1 ) which was the inferior. The application of humic sub.(H2) recorded a relatively superior in yield percentage components of wheat crop as compared to control. Amino humate 2 was effective on both yield components of straw and grains as compared to ( amino humate1) for both studied season. Protein and proline content s increased significantly in presence of both amino acids and humic substances along with their combination (amino humate ) as compared to control , the high rate of amino acids (A2) being more effective. Leaf total chlorophyll content (A, B and A+B) increased gradually by increasing the rate of applied treatments, high rate of amino acids (A2) being superior as compared to control and other treatments.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
231
240
https://jssae.journals.ekb.eg/article_37490_f5e7751c81ebb0c9336006e6ecc3004d.pdf
dx.doi.org/10.21608/jssae.2017.37490
Developing a Conical Drum for Chopping Palm Fronds
M.
Ibrahim
Agric. Eng. Dept, Fac. of Agric. Mansoura Univ., Egypt.
author
E.
El-banna
Agric. Eng. Dept, Fac. of Agric. Mansoura Univ., Egypt.
author
M.
Abo-Habaga
Agric. Eng. Dept, Fac. of Agric. Mansoura Univ., Egypt.
author
text
article
2017
eng
The present study was carried out in Agric. Eng. Dept., faculty of Agric., MansouraUniv. to develop a conical drum for chopping palm fronds and to evaluate the performance of the developed machine. The field experiments were conducted to determine the suitable operation parameters for cutting palm fronds to reach the part lengths suitable for the manufacture of animal feed (silage), compost, simple handicraft industries and renewable energy production. The results showed that increasing the cutting drum speed from 7.75 to 15.44 m/s reduced the cutting length from 6.8 to 3.6 mm and increased the power requirement about 42.8%. The machine productivity was around 262 and 241 palm fronds/h with 89.8 and 86% machine efficiency.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
241
244
https://jssae.journals.ekb.eg/article_37393_b2a8784287c9b29fa900e107820776b4.pdf
dx.doi.org/10.21608/jssae.2017.37393
Utilization of Greenhouse (Lean-to Structural Frame) as a Solar Dryer for Drying Lemon Fruits Part I: Drying Process under High Air Temperature.
S.
Abdellatif
Dept. of Agricultural Engineering, Faculty of Agric. Mansoura University
author
A.
Mohmed
Dept. of Agricultural Engineering, Faculty of Agric. Mansoura University
author
Ghada
Mosad
Dept. of Agricultural Engineering, Faculty of Agric. Mansoura University
author
text
article
2017
eng
A solar lean-to greenhouse dryer was designed, constructed and tested for drying lemon fruits at the experiments and researches field, Faculty of Agriculture, MansouraUniversity (latitude and longitude angles, respectively, are 31.04ᵒN and 31.35ᵒE, and 6.72 m mean altitude above the sea level). In this study a new concept has been taken into consideration to maximize the greenhouse effect (thermal trapping) by using architectural form of lean-to greenhouse structural frame. The experimental work was carried out from 21st to 26th of August 2016. The obtained results showed that, using the northern wall reflector caused in increasing both the intensity of solar radiation inside the dryer and the indoor air temperature by 36.30% and 60.90%, respectively. The daily average solar radiation incident outside and inside the solar dryer were 5.188 and 3.383 kWh, respectively with effective transmittance of 65.21%. Using the northern reflector wall increased the daily average indoor solar radiation by 36.12%. The daily average outdoor and indoor air temperatures were 30.1 and 48.4ºC, respectively. Accordingly, the solar dryer increased the indoor air temperature over the outdoor by 60.80%. These conditions of solar dryer caused in decreasing the daily average air relative humidity from 67.31 to 28.38% with reduction percentage of 38.93%. Three different shapes of lemon fruits (slices, half and whole lemon) was dried from initial moisture content of 87.04% (w.b.) to the final moisture of 17.30, 17.38 and 17.69% (w.b) within 3, 5, and 6 days, respectively.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
245
256
https://jssae.journals.ekb.eg/article_37367_3c731cab9e3ca7ddb3cd02acb2b3cb6a.pdf
dx.doi.org/10.21608/jssae.2017.37367
Evaluation of some Wheat Genotypes under Water Stress Conditions in Upper Egypt
T.
Noreldin
Water Requirement and Field Irrigation Research Department, Soils, Water and Environment Research Institute, Agriculture Research Center
author
M.
Mahmoud
Wheat Research Department; Field Crops Research Institute, Agriculture Research Center
author
text
article
2017
eng
Response of eighteen Egyptian wheat genotypes to both full irrigation (100%ETc) and deficit irrigation (60%ETc) were evaluated to identify water stress effects on yield and yield components. The field experiments were conducted in Assuit Research Station, Assuit Governorate, Egypt, during 2013/14 and 2014/15 winter growing seasons. Five stress tolerance indices were assessed, namely Mean Productivity (MP), Geometric Mean Productivity (GMP), Stress Tolerance (TOL), Stress Susceptibility Index (SSI) and Stress Tolerance Index (STI) to evaluate the response of the tested 18 wheat genotypes to imposed water stress. In addition, water productivity (WP), water consumptive use (WCU) and water use efficiency (WUE) for the studied genotypes were considered. The experimental design was stripe block design, where the irrigation treatments were in the main plots and genotypes were allocated in the sub plots. The obtained results indicate that all the evaluated characteristics responded significantly to the adopted irrigation treatments, genotypes and their interactions. The means of all genotypes significantly decreased for most characters in the two growing seasons under deficit irrigation. Based on drought indices MP, GMP, STI, Line 5 was identified as the suitable genotype under water stress conditions due to lower values for TOL and SSI indices. Total applied irrigation amount was 2722 m3fed-1 under full irrigation condition, and 1633 m3fed-1 under stress conditions, and the corresponding WCU values were 2042 and 1225 m3fed-1, respectively. WUE values exhibited a reverse trend, where higher values were recorded for deficit irrigation condition. It is evident that genotype 5 is potentially water use efficient. Furthermore, under full and deficit irrigation, genotype 5 expressed the highest yield and WP surpassing the commercial varieties. So, such genotype is more suitable for full irrigation and water stress conditions compared with other tested genotypes as well as possessing high values for MP, GMP, STI and expressed low values for SSI and TOL indices.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
257
265
https://jssae.journals.ekb.eg/article_37333_887685482ecc0226d4a978c153f2e391.pdf
dx.doi.org/10.21608/jssae.2017.37333
Response of Three Bread Wheat to Nitrogen Fertilizer with or Without Ascorbic Acid Grown on a Clay Soil
E.
Osman
Soils, Water and Environment Research Institute, Agricultural Research Centre, Giza, Egypt.
author
Gehan
Nor Eldein
Wheat Research Department- Field Crops Research Institute, Agricultural Research Centre, Giza, Egypt.
author
text
article
2017
eng
A field experiment was conducted at Bahtim Agricultural Research Station Farm during 2012/2013 and 2013/2014 seasons. The experimental site is located at lat. 30.80, long 31.16 and 14.00 m above the mean sea level.The objective of this study was to evaluate the effect of nitrogen fertilizer rates (40, 60 and 80 kg N fed-1, with or without foliar application of ascorbic acid) on maximizing wheat yields and its attributes and grain quality of three wheat cultivars as a main-plots. The Egyptian bread wheat cultivars were Misr1, Misr2 and Gemmiza11. The experiment was designed in a split plot design with three replicates. The results indicated that: The highest significant value of spike number m-2 was noticed when wheat cultivar Mesr1 was planted compared to other bread wheat cultivars in both seasons. Also, 1000 grain weight and N uptake by wheat were significantly increased by planting Misr2. The number and weight of grain spike-1 were significantly increased when wheat cultivar Misr1 or Misr2 were planted compared to Gemmiza11 in the first season and vice versa in the 2nd one. Cultivar of Misr2 gave higher grain, straw, biological yield and harvest index as well as N, P and K uptake in grains than other cultivars in the first season only. Meanwhile, the grain, straw and biological yield as well as N, P and K uptake of wheat straw were significantly improved by planting Misr1 compared to the other cultivars in the second season. Also, data reveal that the planting of Misr1 and Gemmiza11gave the highest increase of N, P and K uptake of grain and biological yield compared to Misr2 in the second season only. Generally, in most cases, application of both nitrogen level (80 or 60 kg Nfed-1) with ascorbic acid gave the highest significant values of most yield components, grain, straw, biological yield and harvest index as well as N, P and K uptake of grain, straw, and biological as well as protein % in grain compared with other treatments in both seasons. Over all, the application of 80 or 60 kg N fed-1 with ascorbic acid to any bread wheat cultivars gave a significant increase of wheat yield components, grain, straw biological yield and harvest index as well as N, P and K uptake in grains, straw and biological and also protein % of grain in both seasons.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
267
274
https://jssae.journals.ekb.eg/article_37361_04a3c12a8beeb1d8cf09254bc74aa2bc.pdf
dx.doi.org/10.21608/jssae.2017.37361
Modification of the Longitudinal Rotor to Suit Rice Harvesting
Y.
Ramadan
Ag. Eng. Res. Inst, Dokki, Giza, Egypt.
author
A.
El-Beba
Ag. Eng. Res. Inst, Dokki, Giza, Egypt.
author
O.
Fouda
Ag. Eng. Res. Inst, Dokki, Giza, Egypt.
author
text
article
2017
eng
This research was basically carried out to modify the longitudinal axial flow rotor for threshing wheat machine to suit threshing rice crop. Three phases were done to improve and modified this machine. Firstly, adding four rasp bars on the front part of threshing zone. Secondly, replacing four straight paddles by rasp bars on the front of separating sector of rotor and finally, alternating the stable clearance zone threshing of rotor by another inclined one. Harvester forward speeds of 1.5, 1.7 and 2.0 km/h; peripheral rotor speeds of 17.0, 19.5 and 21.5 m/s; inclined concave clearances of 7:4, 6:4, 5:4 and 4:4cm under moisture contents of (32/24), (27/21) and (20/16) for (straw/grain%, d.b.) were evaluated. Number of jamming times per feddan, threshing efficiency, visible grain damage, field efficiency and power requirement were estimated. In conclusion, higher efficiency attained when threshing was done at lower moisture content and higher rotor speed. After modification, field efficiency increased to 80% under forward speed of 2.0km/h with rotor speed of 21.5m/sec, threshing efficiency reached to 98% with grain damage of 1.5% while power requirements decreased to 47.35 kW.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
275
284
https://jssae.journals.ekb.eg/article_37354_def09e8d9db84365104f5ecf087c596b.pdf
dx.doi.org/10.21608/jssae.2017.37354
Effect of Some Agricultural Practices on Mitigating the Harmful of Soil Salinity for Faba Bean (Vicia faba L.) Productivity
Kadria
EL Azab
Soils, Water and Environ. Res. Institute, Agric. Res. Center, Giza, Egypt.
author
Abeer
Mahmoud
Plant physiology Section, Department of botany, Faculty of Agricultural, Cairo University, Giza, Egypt.
author
text
article
2017
eng
Management of saline soils is the main concern of many specialists in order to mitigate or reduce the salinity problems on the plant for increases its ability to produce crops. Thus, a field experiment was carried out during the winter season of 2014/2015, on a sandy loam soil at a newly reclaimed area of Sahl El-Tina, Galbana Village No.7, North Sinai, Egypt., to evaluate some of agricultural practices proposed i.e. agricultural system (raised beds or furrow row system) and Zn SO4 foliar application on alleviate salinity stress and faba bean yield and yield components.The results can be summarized as follows ; the raised bed system contributed in good manage of salt accumulation, where the soluble salts were pushed from the root zone of bed shoulder towards bed middle as a result of dawn and lateral irrigation movements. Thus, the gradually decreasing in soil salinity with the consecutive irrigations had significantly positive effect on plant heights, number of branches/plant, number of pods/plant, straw yield, seed yield, weight of 100 grains and protein contents (%) in seeds of faba bean plants under raised bed system compared to furrow row system. In addition to, the amounts of macronutrients uptake by plant and its chlorophyll content were significantly increased with using raised bed system. In contrast, the prolien content of faba bean plant was decreased with fading the salinity stress problems under this condition. Furthermore, Zn SO4 foliar application treatments gave the same trend particularly with 200 mg L-1 as individual treatment, except number of branches/plant and protein contents (%). This positive effect was higher clearly with the interaction between raised beds system and 200 mg L-1 (Zn SO4) treatment.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
285
292
https://jssae.journals.ekb.eg/article_37498_1e32485a22bc8496ca0be3525a082916.pdf
dx.doi.org/10.21608/jssae.2017.37498
Response of Bread Wheat to Nitrogen Fertilizer Rates and Spraying with Ascorbic, Citric and Salicylic Acids
E.
Osman
Soils, Water and Environment Research Institute, Agricultural Research Centre, Giza, Egypt.
author
E.
Habib
Genetic Resources Research Department- Field Crops Research Institute, Agricultural Research Centre, Giza, Egypt.
author
Gehan
Nor Eldein
Wheat Research Department- Field Crops Research Institute, Agricultural Research Centre, Giza, Egypt.
author
text
article
2017
eng
A field experiment was carried out at Bahtim Agricultural Research Station Farm through 2013/2014 and 2014/2015 seasons. The experimental site is located at lat. 30.80, long 31.16 and 14.00 m above the mean sea level, to study the effect of foliar spray of some antioxidants (ascorbic, citric and salicylic acids) under three nitrogen fertilizer rates (40, 60 and 80 kg N fed-1) and their interactions on yield and its attributes as well as macronutrients uptake and protein percentage of bread wheat variety (Misr 1). The obtained results could be summarized as follows:1- Application of the highest nitrogen fertilizer rate (80 kg N fed-1) gave a significant increase in grain weight spike-1, spike number spike m-2, grain number spike-1 and 1000 grain weight (g). Also, grain, straw, biological yield and harvest index as well as NPK uptake of wheat grain, straw, biological and protein % of grain were increased significantly when adding 80 and 60 kg N fed-1 in both seasons.2- Generally, in most cases, foliar application of any organic acids (ascorbic, citric or salicylic) gave a significant increases in yield and its some components as well as macronutrients uptake and protein percentage of wheat in both seasons. 3- The highest significant values of some yield components, grain, straw, biological yield and harvest index as well as NPK uptake of wheat grain, straw and biological were noticed by spraying any organic acid under soil application of 60 or 80 kg N fed-1 in both seasons. Thus, the increases in wheat yield (quality and quantity)may be attributed to the organic acids guide to an enhancing wheat plant growth and promote its nutrients uptake as well as improving the efficiency of nitrogen fertilizer. So, under the same conditions we can reduce the recommendation of nitrogen fertilizer for wheat from 80 to 60 kg N fed-1 with foliar application with ascorbic, citric or salicylic acids to get the best possible wheat productivity.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
293
300
https://jssae.journals.ekb.eg/article_37349_dd22a12f797150e4fc15b50139052d9d.pdf
dx.doi.org/10.21608/jssae.2017.37349
Influence of Mechanical Harvesting Process on Productivity and Quality of Cotton Fiber
A.
El-Yamani
Agricultural Engineering Research Institute (AENRI), Agricultural Research Center, P.O Box 256 Dokki, Giza, Egypt.
author
S.
Marey
Agricultural Engineering Research Institute (AENRI), Agricultural Research Center, P.O Box 256 Dokki, Giza, Egypt.
author
I.
Sayed-Ahmed
Agricultural Engineering Research Institute (AENRI), Agricultural Research Center, P.O Box 256 Dokki, Giza, Egypt.
author
text
article
2017
eng
The aim of this study is to evaluate and compare the performance of two different types of cotton pickers, namely the John Deere model 7260 and the Pamuk brand cotton harvesting machine model ptm2. Therefore, field experiments were conducted to investigate the effects of four mean forward speeds of 1.32 ,1.66, 1.87, and 2.15 km h-1, three fiber moisture contents of 13.3, 10.8, and 8.7% d.b, and three inter-row spaces of 0.70, 0.76, and 0.85 m. on the picking losses, machine productivity, specific energy consumption and fiber physical properties. The results showed that the minimum values of the picking losses were 0.8 and 4.5 % for the John Deere and Pamuk cotton pickers respectively recorded at a forward speed of 1.32 km/h, a fiber moisture content of 10.8% d.b., and an inter-row spacing of 0.85 m. The maximum values of machine productivity of the John Deere and Pamuk cotton pickers were 2.1 and 0.995 Mg h-1, respectively, at a forward speed of 2.15 km h-1, a fiber moisture content of 10.8%, and an inter-row spacing of 0.76 m. The lowest values for the specific energy consumption were 23.07 and 30.69 kW h Mg-1 for the John Deere and Pamuk cotton pickers, respectively, at a forward speed of 2.15 km/h, a fiber moisture content of 8.7 % d.b., and an inter-row spacing of 0.85 m. Also, At a forward speed of 1.32 km/h, fiber moisture content of 13.3% and an inter-row spacing of 0.76 m. both cotton pickers achieved the maximum values of 2.5% span fiber length, 50 % span fiber length, fiber length uniformity ratio and reflectance and minimum values of seed cotton trash content and yellowness.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
301
306
https://jssae.journals.ekb.eg/article_37505_2390eb9eafee8c7ab242bafe1546bc28.pdf
dx.doi.org/10.21608/jssae.2017.37505
Impact of Soil Humic Acid Soil Application and Seaweed Extract Foliar Spray on Growth, Yield, and Fruits Quality of Strawberry Plants Grown under Aswan Conditions
A.
Alkharpotly
Hort. Dept., Fac. of Agric. and Natural Res., Aswan Univ., Aswan, Egypt.
author
R.
Mohamed
Vegetable Res. Dept., Hort. Res. Inst., Agric. Res. Center, Dokki, Giza, Egypt.
author
M.
Shehata
Hort. Dept., Fac. of Agric. and Natural Res., Aswan Univ., Aswan, Egypt.
author
A.
Awad
Soils and Natural Res. Dept., Fac. of Agric.& Natural Res., Aswan Univ., Aswan, Egypt.
author
text
article
2017
eng
Two field experiments were carried out during two consecutive growth seasons (2014/2015 and 2015/2016) in the Experimental Station Farm, Faculty of Agriculture and Natural Resources, Aswan University, Egypt on a sandy textured soil under unheated plastic houses. The aim of this study was to investigate the influence of three levels of humic acid added to the soil with irrigation and three levels of seaweed extract foliar applications as well as their interactions on growth traits, yield, and fruit quality of strawberry (Fragaria × ananassa Dush.) cv. "Festival" grown on the sandy soil under Aswan conditions. The experimental design was a split-plot system arranged in a randomized complete block design with three replications. The humic acid treatments (0, 200 and 400 mg/L) were randomly arranged in the main plots, while seaweed extract concentrations, (0, 500, 1000 and 1500 mg/L) were randomly distributed in the sub-plots. The obtained results revealed that soil humic acid application gave the significant effects in all characters under study and seaweed extract foliar spray. Moreover, applying soil humic cid at a level of (400 mg/L) combined with seaweed extract spray (1500 mg/L) resulted in significant increases in most studied characters in both seasons.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
307
315
https://jssae.journals.ekb.eg/article_37496_6f1208d5e780c1aa9d1df7e454932bcc.pdf
dx.doi.org/10.21608/jssae.2017.37496
Safe storage of Egyptian Wheat Grain Using Different Types of Hermetic Poly-Ethylene Bags
M.
Matouk
Agric Eng. Dept. Fac. of Agric. Mansoura Univ.
author
M.
El-Kholy
Agric. Crops, Agric .Eng. Res. Institute.
author
A.
Tharwat
Agric Eng. Dept. Fac. of Agric. Mansoura Univ.
author
A.
Abd El-Aziz
Agric. Crops, Agric .Eng. Res. Institute.
author
text
article
2017
eng
The current study was carried out to minimize the Egyptian wheat grain losses in quantity and deterioration of quality during open field storage by innovative and economic method. This method based on efficient control of moisture, moulds & insects in wheat grains during storage in three different types of poly-ethylene bags with different materials structure and film thicknesses of 90, 120 and 140 microns. The developed bags were compared with the traditional burlap storage bags. Freshly harvested wheat grain variety (Gemmiza-9) was used for the experimental work. The wheat samples were harvested from the Experimental Farm of the Rice Mechanization Center (R.M.C) at Meet El-Dyba, Kafr El-Sheikh governorate during (2014-2015) wheat harvesting seasons. Quality changes of wheat grain stored in different types of bags were measured to assess the most proper type of bags for large scale storage process. The results show that: Storing wheat grain in storage bags (Type 2 and 3) did not create a lethal environment for insects, molds and total microbial load.Wheat grain at (M.C less than 13% w.b.) could be stored in the developed plastic bags (Type 2 and 3) for more than six months without losing the grain quality and also without fumigation process for insect control. Poly-Eythelene bags (type 3) give more moisture sealing and less permeability for CO2 in comparison with other types of bags and thereby it can safely store the grain for longer storage duration.Further tests for both storage bags Type 2 and 3 are recommended to assure larger scale storage and longer storage time.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
8
v.
6
no.
2017
317
322
https://jssae.journals.ekb.eg/article_37500_95e3e39425f6820c209df293109bb830.pdf
dx.doi.org/10.21608/jssae.2017.37500