Mansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201UTILIZATION OF SILICA GEL AS A DESICCANT MATERIAL OF MOIST AIR USING IN DRING PROCESS8539855120044110.21608/jssae.2008.200441ENN.M. El-AshmawyResearcher, Agric. Ing. Res. Inst., Agric. Res. Center, Giza, Egypt.S.S. HannaResearcher, Agric. Ing. Res. Inst., Agric. Res. Center, Giza, Egypt.M.K. El-BakhshwanResearcher, Agric. Ing. Res. Inst., Agric. Res. Center, Giza, Egypt.Journal Article20081220The dehumidifying process of moist air before using in drying process not only reduces the energy consumption in drying process but also improve the performance of the process. In this work, a new concept is developed by making the ambient air flows parallel on silica gel bed. A certain amount of the humidity of incoming air, which is removed by silica gel, depends on many parameters; the weight and thickness of silica gel, air flow rate and the bed diameter. The experimental work was carried out to investigate the performance and energy saving during drying process using the silica gel bed system. The obtained results indicated that the silica gel can be used as a desiccant material for removing the ambient air humidity and therefore increasing its efficiency during drying process of the agricultural products. The optimal conditions were; 12.5 cm bed diameter, 0.053 kg/s air flow rate and 1.2 kg silica gel weight. At these conditions the maximum values of water absorption rate, temperature increase and energy saving were; 6.4 g/kg air, 11 Cº, and 0.586 kW, respectively, and the minimum value of air moisture content (2.59 g/kg air) can be achieved.https://jssae.journals.ekb.eg/article_200441_ef993a1132aefd49a471928dbbfb10de.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201PEA CROP YIELD, QUALITY AND ENERGY REQIREMENTS UNDER SPRINKLER IRRIGATION SYSTEM6553656620045510.21608/jssae.2008.200455ENY. E. ArafaAgricultural Engineering Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.E. A. El-SahharAgricultural Engineering Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.M. O. El-ZakazikyAgricultural Engineering Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.Journal Article20081220The aims of this investigation were to analyze pea crop yield and quality under different sprinkler atomization theories; estimate the crop reduction coefficient due to the examination point of view along sprinkler lateral lines and determine the energy requirements for seedbed preparation under newly reclaimed areas of Egypt. Therefore, two field experiments were carried out during two successful growing seasons (2006 and 2007) in the Desert Experimental Farm of Faculty of Agriculture, AinShamsUniversity at El-Bustan region, which represents sandy soil conditions in the western desert of Egypt.<br /> Results revealed that rotating sprinkler had the highest vegetation growth factors "plant height and number of pods per plant" followed by small and large nozzles impact sprinkler respectively. However the vegetation growth factors: plant height and number of pods per plant had been increased with about 19and 23% with rotating sprinkler and about 13.7and 6.8% with small nozzle impact comparing with large nozzle impact sprinkler. With respect to the effect of the point of estimation along sprinkler lateral line, data revealed a non-homogeneity trend due to the effect of sprinkler atomization theories and corresponding nozzle sizes. However, data revealed that there is heterogeneity of the highest values with regard to the examination point along sprinkler lateral line under different sprinkler atomization theories.https://jssae.journals.ekb.eg/article_200455_052010fc8d9401bedef7a0f88b71c231.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201EFFECT OF LOW QUALITY IRRIGATION WATER ON SPINACH YIELD AND SOME SOIL CHEMICAL PROPERTIES9075909020045710.21608/jssae.2008.200457ENE.M. El-HadidiSoils Dept., Fac. of Agriculture, Mansoura Univ., EgyptA. A. MosaSoils Dept., Fac. of Agriculture, Mansoura Univ., EgyptSara El-ShabasySoils Dept., Fac. of Agriculture, Mansoura Univ., EgyptJournal Article20081220The increasing demand for water in arid areas requires looking for secondary water resources for irrigation, and this is the main goal of this study.<br /> For this purpose, pot experiment was carried out in the experimental greenhouses of the soils Dept., Fac. of Agriculture, Mansoura Univ., Egypt during the winter season of 2007/2008 to assess the quality of different irrigation water resources, i.e. fresh water from the River Nile as the control treatment, groundwater, drainage water and blended drainage water with fresh water. This is to evaluate the effect of irrigation with these water resources on quantitative and qualitative yield characteristics of spinach (<em>Spinacia oleracea</em>), and soil chemical properties at the end of the experiment.<br /> Results indicated that, the quality of irrigation water varied among the studied water resources, and the quality of the River Nile water was the highest. Consequently, it could be used for irrigating different field crops, with different soil conditions without any limitations. The SAR values of secondary water resources allow the irrigation in most soil conditions, but the sensitive plants for salinity, boron and chloride should be excluded from irrigation with the secondary water resources, even it was blended with fresh water.<br /> Spinach yield quantity, chlorophyll content and nutrients concentration insignificantly decreased through irrigation with secondary water resources, whereas sodium concentration significantly increased.<br /> On the other hand, soil salinity, soluble cations and anions were high significantly increased through irrigation with the secondary water resources, whereas soil pH was insignificantly increased.https://jssae.journals.ekb.eg/article_200457_33868c29141bd98068752b6c78eec1ac.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201EFFECT OF DIFFERENT WATER SOURCES UNDER DIFFERENT SOIL MOISTURE DEPLETIONS ON SOIL SALINITY, ALKALINITY AND SUGAR BEET AND SUNFLOWER YIELDS9091910420045910.21608/jssae.2008.200459ENE. A. E. GaziaSoil, Water and Environment Research Institute, A.R.C. EGYPTM.A.A. Abd AllahSoil, Water and Environment Research Institute, A.R.C. EGYPTM. A. Abd El-AzizSoil, Water and Environment Research Institute, A.R.C. EGYPTB.A. ZamilSoil, Water and Environment Research Institute, A.R.C. EGYPTJournal Article20081220Lysimeter experiments were carried out at Sakha Agric. Research Station in two growing seasons (2007 and 2008) to assess a new technique of irrigation using different water sources: fresh (Nile) water – drainage water – wastewater – well water. This technique is alternating irrigation between those different water sources and fresh water under soil moistures depletion (50% and 70%). Crop yield, water Use efficiency (WUE), soil salinity (ECe) and alkalinity (ESP) were recorded.<br /> Sugar beet yield significantly influenced by Water sources, soil moisture depletion and application technique. Elemental content (macro nutrients and heavy metals) was increased as a result of irrigation by sewage water either directly or blended with well water. The alternative technique increased the WUE and frustrated the saline effect of sewage water as compared to continuous one. The lowest values of soil salinity and alkalinity were achieved under the irrigation with fresh water and blending sewage water with well water under alternative irrigation technique.<br /> Regarding sunflower, seeds yield was significantly affected by the three factors (water source, application technique and soil moisture depletion). Fresh water with soil moisture depletion at 50% of available soil moisture induced the highest value of seed yield. The highest values of WUE were subjected to the treatment irrigated with sewage water alternated with fresh water and depletion at 70%. Using fresh water and well water induced the lowest and the highest values of ECe respectively. Blending sewage water with well water decreased soil alkalinity (ESP) under alternative technique compared with irrigation by well water or sewage water separately.https://jssae.journals.ekb.eg/article_200459_17980ecc9e3e08522fe7ca0c1001c29c.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201COMPARISON BETWEEN CROPWAT AND YIELD-STRESS MODELS IN PREDICTING SESAME YIELD AND CONSUMPTIVE USE UNDER WATER STRESS CONDITIONS9105911920046210.21608/jssae.2008.200462ENF. A. KhalilWater Requirements and Field Irrigation Research Department; Soil, Water, and Environment Research Institute; Agricultural Research Center; Egypt.Samiha A.OudaWater Requirements and Field Irrigation Research Department; Soil, Water, and Environment Research Institute; Agricultural Research Center; Egypt.M. M. EwisWater Requirements and Field Irrigation Research Department; Soil, Water, and Environment Research Institute; Agricultural Research Center; Egypt.Journal Article20081220 <br /> Both CROPWAT and Yield-Stress models were validated using data from two field experiments conducted at Shandaweel Agriculture Research Station, Egypt in 2007 and 2008 growing seasons. The aim of the experiment was to study the effect of imposing water stress on sesame yield and consumptive use. Four sesame varieties namely Giza 32, Toshky 1, Shandaweel 3 and Sohag 3 were used, in addition to two different irrigation treatments (irrigation after depletion of 50% and 70% of total available soil moisture).The results indicated that both CROPWAT and Yield-Stress models predicted yield reduction and consumptive use as a result of water stress for both irrigation treatments over both growing seasons with high degree of accuracy. However, Yield-Stress model predicted values of sesame yield and consumptive use were more close to the measured values, compared with the values of CROPWAT model. This could be attributed to the method that Yield-Stress model uses to predict yield, compared with CROPWAT model method, which is percent reduction in the yield as a result of water stress. Furthermore, the highly accurate prediction of Yield-Stress of consumptive use could be attributed to using daily measurements of weather parameters, not monthly measurements that CROPWAT uses. Prediction results also indicated that if irrigation water was applied when 80% of total available water was depleted, CROPWAT predicted reduction in sesame yield by 13.8 and 13.3%, in both growing seasons, whereas Yield-Stress predicted 13.6 and 13.9% reduction. Therefore, under deficit irrigation procedure irrigation water should be applied when 70% of total available soil moisture was depleted to avoid high yield decrease.https://jssae.journals.ekb.eg/article_200462_6990a3c1b10b78f59c90791d7c58cd1c.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201EFFECT OF IRRIGATIONS NUMBER AND PHOSPHORUS FERTILIZATION ON YIELD AND ITS COMPONENTS OF FABA BEAN IN NORTH NILE DELTA9121912820046410.21608/jssae.2008.200464ENS.M. EidSoils, Water and Environment Research Institute, A.R.C., Giza EgyptM.A.A. AbdallahSoils, Water and Environment Research Institute, A.R.C., Giza EgyptA.A. El-ArabySoils, Water and Environment Research Institute, A.R.C., Giza EgyptS.A. El-SaadySoils, Water and Environment Research Institute, A.R.C., Giza EgyptJournal Article20081220Two field experiments were conducted at Sakha Agricultural Research Station Farm, Kafr El-Sheikh Governorate, Egypt during the two successive seasons of 2005/2006 and 2006/2007 to study the effect of irrigations number and phosphorus fertilization levels on faba bean production, consumptive use and water use efficiency. Irrigation was applied at three treatments i.e. 3, 4 and 5 irrigations including sowing irrigation, whereas phosphorus fertilizer was added at three levels i.e. 0, 15 and 30 kg P<sub>2</sub>O<sub>5</sub>/fed. in both seasons.<br /> The main results revealed that increasing number of irrigations caused an increase in yield and yield attributes of faba bean. Also, increasing P-rate caused an increase in all previous characteristics in both seasons. The highest consumptive use values were scored from treatment irrigated with five irrigations. The highest water use efficiency values were obtained from treatment irrigated with four waterings however, the lowest value was obtained from treatment received three watering.<br /> Means values of seasonal water consumptive use of faba bean were 30.0, 34.8 and 42.0 cm/fed. for I<sub>3</sub>, I<sub>4</sub> and I<sub>5</sub>, respectively.<br /> Seasonal irrigation water applied were 35.2 cm (1482 m<sup>3</sup>/fed.), 41.2 cm (1732 m<sup>3</sup>/fed.) and 49.5 cm (2077 m<sup>3</sup>/fed.) for irrigation treatments I<sub>3</sub>, I<sub>4</sub> and I<sub>5</sub>, respectively.<br /> Therefore, irrigation of faba bean with 4-waterings including sowing irrigation since the reduction in seeds yield was 5% for 15% of saving irrigation water applied compared with irrigation 5 waterings including sowing irrigation.https://jssae.journals.ekb.eg/article_200464_1ee00d51e561f586f380a8974ec26657.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201IMPACT OF IRRIGATION WITH LOW QUALITY WATER ON THE PRODUCTIVITY OF SUGAR BEET IN SAHL EL-HUSSINIA PLAIN9129914020066310.21608/jssae.2008.200663ENE.E.E. KhafagaSoils, Water and Environment Research Institute, Agric. Res. Centre Giza, Egypt.Kh. A. H. ShabanSoils, Water and Environment Research Institute, Agric. Res. Centre Giza, Egypt.Hoda S.SaiedSoils, Water and Environment Research Institute, Agric. Res. Centre Giza, Egypt.Journal Article20081223This work was conducted at Sahl- El-Hussinia plain, El-Sharkia Governorate, (private farm) through two successive winter seasons of 2006-2007 and 2007- 2008 to study the effect of different irrigation sources on sugar beet productivity. The source of irrigation water was El- Salam canal i.e. mixed Nile water with agriculture drainage water (1:1), Bahr Hadoos drain e.g. agriculture drainage water and Bahr El-Bakar drain as sewage effluent.
<strong>The obtained results could be summarized as follows:</strong>
There was a reduction of soil pH as a result of irrigation with different irrigation sources water specially the soil irrigated with Bahr El-Bakar drain during the two seasons.
There was a relative decrease of soil salinity; 5.36 – 38.73 % of soil irrigated with El-Salam canal; 5.33 – 22.45 % of soil irrigated with Bahr Hadoos drain and 8.22–34.81 % from soil irrigated with Bahr El-Bakr drain.
There was a relative increase of available N, P, K and available Fe, Mn and Zn in the first season, while there was significant differences in the second season in all studied soil.
There was a significant increase of sugar beet production in soil irrigated with Bahr El-Bakar drain, while the sugar purity and sugar yield were increased in soil irrigated with El-Salam canal water. The different resources of irrigation water led to an increase in the concentration of N, P, K, Fe Mn and Zn in sugar beet shoot more than root in all studied traits.https://jssae.journals.ekb.eg/article_200663_99c7ae55fb4ae87bb27a86d2c3a68a00.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201EFFECT OF DIETS CONTAINING VIRGIN OLIVE , CANOLA OR LINSEED OILS ON SERUM LIPID AND LIPOPROTEIN LEVELS OF RATS9141915420066510.21608/jssae.2008.200665ENH.H. El-RafeyDepartment of Agricultural Chemistry, Faculty of Agriculture, Mansoura Univeristy, Egypt.M.I SanadDepartment of Agricultural Chemistry, Faculty of Agriculture, Mansoura Univeristy, Egypt.R.A. HassanDepartment of Agricultural Chemistry, Faculty of Agriculture, Mansoura Univeristy, Egypt.M.A TaherDepartment of Agricultural Chemistry, Faculty of Agriculture, Mansoura Univeristy, Egypt.Journal Article20081223Three vegetable oils (virgin olive, crude canola, or linseed oils) were used as diet additives to compare their effects on lipid profile of blood serum of experimental rats in the presence of egg yolk as a source of cholesterol. Corn meal (1.6% fat) was used as control diet, the positive control diet composed of corn meal plus 9% egg yolk (about 0.15%cholesterol). The other three diets composed of positive control plus 14% olive, canola or linseed oils. Lipid parameters were determined in rat's blood serum after 21, 36 and 46 days from feeding . Obtained data revealed that both canola and linseed oils containing diets significantly decreased total cholesterol (TC), triacylglycerol(TG) and low-density lipoprotein cholesterol (LDL-c) and increased high-density lipoprotein cholesterol (HDL-c) levels in relation to positive control diet. Data of olive oil containing diet showed a significant increase in TC, TG, and HDL-c at the end of nutrition experiment. Whereas no significant difference in LDL-c between positive control and olive oil containing diet.https://jssae.journals.ekb.eg/article_200665_da4a0bd458be3aa8918d6b19b2ad47dd.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201CHEMICAL COMPOSITION AND QUALITY OF SPINACH PLANT (SPINACH OLERACEA L.) AS AFFECTED BY MINERAL FERTILIZATION AND SOME RESIDUAL PLANT EXTRACTS.9155917020066610.21608/jssae.2008.200666ENZ. M. El-SirafySoils Dept, Faculty of Agriculture, Mansoura University.G. A. BaddourSoil. Water and Environ. Res. Inst.; Agric. Res. Center. Giza. Cairo.Bosy F.AbasSoils Dept, Faculty of Agriculture, Mansoura University.Journal Article20081223Two pot experiments were carried out under the green house of Faculty of Agriculture.; El-MansouraUniversity during the two successive winter seasons of 2006-2007 and 2007-2008 to study the substitution of some organic extracts which prepared from potato, tomato and fruit leaves instead of a part of mineral fertilizer to produce a safe yield of spinach plant. Twelve treatments were arranged in complete randomize block design with 3 replicates, which were the simple possible combination between four treatments of plant extracts (0, Potato extract, Tomato extract and fruit leaves extract) for foliar spraying and three treatments of N, P and K fertilizers (0, 50 % and 100 %) of recommended doses as soil addition and their combination .The obtained results can be summarized as follow:
Spraying of residual plant extracts either in a single form or in combination with mineral fertilization led to a positive effect on the growth and yield of spinach plants.
Increasing the rate of N, P and K fertilization from 50 to 100 % RD significantly increased the mean values of N, P and K contents in the leaves of spinach plant; such effect had no significant effect on the values of Fe (mg/100g).
The accumulation of nitrate and nitrite in spinach fresh leaves increased as the level of mineral fertilizers increased. Foliar spraying of residual plant extracts which contain micronutrients in the presence of mineral fertilizers resulted in pronounces decrease in the values of NO<sub>3</sub>-N and NO<sub>2</sub>-N in spinach plant.
Foliar spraying of plant residual extracts as solely had no significant effect on the mean values of total oxalate, while such effect significantly increased the values of soluble oxalate as compared to the untreated plants. There is no significant difference between the average values of total oxalate in spinach plant due to an addition of N, P and K fertilizers combined with spraying of residual plant extracts as compared to the same values obtained from the plants treated with N, P and K fertilizers only.
Under the same condition of this investigation it could be recommended that; soil addition of N+P+K fertilizers at the rate of 50% from the recommended doses for spinach plant coupled with foliar spraying of potato foliage residual extract is considered as the best treatment for producing a safe yield of spinach plant. https://jssae.journals.ekb.eg/article_200666_70aa26eed2874869241da7434297fa88.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201EFFECT OF CYANOBACTERIA INOCULATION in PRESENSE OR ABSENCE OF DIFFERENT NITROGEN LEVELS ON MAIZE YIELD, YIELD COMPONENTS, SOIL BIOLOGICAL ACTIVITY AND SOIL NATIVE MYCORRHIZAE9171918220066810.21608/jssae.2008.200668ENEl-Sayeda A. HassanSoils, Water and Environ. Res. Inst., Agric. Res. Center, (ARC), Giza, Egypt.F. T. MikhaeelSoils, Water and Environ. Res. Inst., Agric. Res. Center, (ARC), Giza, Egypt.F. M. GhazalSoils, Water and Environ. Res. Inst., Agric. Res. Center, (ARC), Giza, Egypt.Journal Article20081223A field experiments were carried out at EL- Ismailia Agric. Res. Station (ARC), EL- Ismailia Governorate, Egypt, during the Summer seasons of 2007 to study the influence of cyanobacteria inoculation in different rates (0, 50 and 100% of the recommended dose, i.e., 3.5 kg dried cyanobacteria inoculum fed<sup>-1</sup>) individually or in presence and/ or absence of different nitrogen levels (0, 50 and 100% of the recommended dose, (i.e.),100 kg N fed<sup>-1</sup>) on maize yield and yield components and the biological activity of the soil remained after maize harvesting as represented by total count bacteria, cyanobacteria count, CO<sub>2</sub> evolution, dehydrogenase (DHA) and nitrogenase (N<sub>2</sub>-ase) activities. As well as, the soil native mycorrhiza were examined at two periods of 45 and 90 days from maize sowing n response to the tested treatments.
<strong> </strong>Results revealed that all tested treatments increased significantlyboth maize yield and its components over the control treatment.The highest yield components values were due to 100% N + 100% cyanobacteria and they were comparable to those recorded in presence of 50% N + 100% cyanobacteria treatment. Also the values of maize yield components obtained due to 100% N treatment werenotsignificantlydifferent from those attained due to 100% N + 100% cyanobacteria and 50% N + 100% cyanobacteria treatments. Cyanobacteria inoculation at the rate of 50% combined with 100% N recorded the highest maize protein and carbohydrate percentages. Indefinite trend was noticed of maize oil % in response to cyanobacteria inoculationdespite the highestinsignifecant oil % increments were noticed due to 50% N + 100% cyanobacteria treatment. Also, indefinite response was observed for ash % due to cyanobacteria inoculation. For soil biological activity, cyanobacteria inoculation enhanced significantly any of total count bacteria, cyanobacteria count, CO<sub>2</sub> evolution, dehydrogenase and nitrogenase activities compared to the control treatment received no inoculation. In conclusion, the use of cyanobacteria inoculation technology in cereal crop production such as maize may lead to reduce the amount of mineral nitrogen required for maize production by 50% as well as it ensures good yield quality and safe the environment contaminations resulted from the extensive use of the costly and hazard the so called mineral nitrogen fertilizer.
<strong> </strong>https://jssae.journals.ekb.eg/article_200668_169dddf7b3c4dfea68c869cd8b10d73e.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201EFFECT OF SOME ORGANIC AND NATURAL CONDITIONERS ADDITION ON PHYSICAL AND CHEMICAL PROPERTIES OF SOIL, ITS NUTRITIONAL STATUS AND ZEA MAIS YIELD9183919420066910.21608/jssae.2008.200669ENMona A.OsmanSoils, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, EgyptWafaa M.A.SeddikSoils, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, EgyptGehan H.YoussefSoils, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, EgyptJournal Article20081223 Two field experiments were carried out for two successive summer seasons at Ismailia Agric. Res. Station (ARC) El- Ismailia Governorate to study the effect of some organic and natural conditioners on physical (field capacity, wilting point and available water) and chemical properties of soil (pH, EC and availability of macronutrients), its nutritional status and yield and yield components of maize. The experiments were designed in a randomized complete block design with three replicates. Three forms of organic conditioners (compost, FYM and compost extract) were applied at two rates. Also two natural minerals (bentonite and dolomite) were applied at two rates each alone or both in combination.
Data indicated that values of FC, WP and AW increased significantly by increasing the rate of organic and natural conditioners. Compost treatments were superior in increasing values of FC, WP and AW at both seasons. Data also show a slight increase in soil moisture content in case of application of both bentonite and dolomite, the same trend was observed with bentonite combined with dolomite at both applied rates. Values of pH decreased with increasing the rates of organic conditioners but increased with increasing the rates of natural minerals at both tested seasons. Also, available N, P and K increased significantly with increasing the rate of organic manures (FYM, compost and compost extract) and minerals (bentonite, dolomite). High rate of organic conditioners (especially compost extract) or natural minerals (especially bentonite combined with dolomite) increased significantly macronutrients in soil for both growing seasons.
With regard to N, P and K contents in plant parts for maize, increased significantly with application of both organic and natural conditioners. N, P and K uptake increased gradually by increasing the rate of organic conditioners. Moreover, compost extract treatment was superior for increasing the uptake of macronutrients. Macronutrients uptake of maize straw and grain increased significantly with the application of natural conditioners alone (bentonite or dolomite) and/or in combination (bentonite + dolomite). This trend was more pronounced for dolomite.
The values of yield components increased significantly with the application of both organic and natural conditioners, also they increased gradually by increasing the rates of organic and natural conditioners. Compost extract treatment recorded the highest values of straw and grain yields. Natural mineral (bentonite and dolomite) application increased significantly yield components either they applied alone or both in combination. This finding was more pronounced in the case of dolomite treatment. On the other hand, the decreases of yield components were observed with increasing the rates of bentonite for both growing seasons.https://jssae.journals.ekb.eg/article_200669_6daa3a4264b0824edc483e962d3d3fa0.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-3685331220081201RESPONSE OF FABA BEAN YIELD TO INORGANIC, ORGANIC-N FERTILIZERS AND THEIR COMBINATION WITH SOME COMPOUNDS AS FOLIAR APPLICATIONS ON GROWTH, YIELD AND MINERAL COMPOSITION.9195920420067410.21608/jssae.2008.200674ENA.M. Abd El-HameedPlant Nutrition, Soil, Water and Environment, Res. Inst., Agric. , Res. Center, Giza, Egypt.S.H. SarhanPlant Nutrition, Soil, Water and Environment, Res. Inst., Agric. , Res. Center, Giza, Egypt.Journal Article20081223Two field experiments were conducted at Qalabshu, Agriculture Research Station, during two successive seasons of 2006/2007 and 2007/2008. The work aimed to study the response of faba bean plant to inorganic & organic-N and its combined fertilizers with some compounds as foliar applications on growth, yield and mineral composition.
<strong>It was found that :-</strong>
1 The foliar application of (N, P and K ) gave the highest mean values for yield with mixed plots (25% of mineral + 25% of FYM both of recommended doses), but the effect of inorganic & organic-N and their combined gave the equal mean values of phytic acid concentrations with N, P and K foliar application treatment.
2- The inorganic-N Fertilization (100% mineral of recommended dose , 8 kg N/fed) gave the highest mean values of N and K - uptake, but the combined Fertilization gave the highest mean values of P-uptake with N,P and K foliar application treatment.
3- The inorganic-N fertilizer gave the highest mean values for Fe-uptake, but the organic-N fertilization (100% of FYM of recommended dose , 10 ton/Fed) gave the highest mean values for Zn, Mo and Co- uptake, in contrast, the combined Fertilizers gave the highest mean values for Mn- uptake, obtained with N.P and K foliar application treatment, except Co-uptake for the B, Mo and Co foliar applications treatment.
From these discussion , it could be concluded that the inorganic & organic-N and the combined Fertilization with the (N,P,K ) treatmeants as foliar application are important for obtaining a high and good quality in yield and its components, while, decreased phytic acid in seeds as the result of using yeast as fertilizer .https://jssae.journals.ekb.eg/article_200674_8ea00512e15dd98ec4a8c6f84a22aebc.pdf