@article { author = {}, title = {Long-term Impact of Treated Sewage Water on Some Soil Properties and Nutrients Status in Luxor Governorate, Egypt}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {1-14}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3358}, abstract = {IRRIGATION of forests with sewage water for fuel and timber production inEgypt is an approach which helps to overcome health hazards associated withsewage farming. Hopefully, sewage water will help in the expansion of the irrigatedagriculture or save the fresh water for other sectors. This study was carried out toinvestigate the impact of irrigation with treated sewage water on the properties andnutrients status of soils in Luxor Governorate. samples of sewage water, groundwater and Nile water as well as samples of soil irrigated with these water sourceswere collected and analyzed.The results showed that sewage water and groundwater are consideredmoderately saline with an ECw of 0.88 and 1.20 dS/m, respectively, while the Nilewater is slightly saline (ECw 0.27 dS/m). With respect of their SAR, RSC and Clvalues, all investigated water sources are of a high quality and can be used in theirrigation without limitations. Moreover, sewage water contained higher amount oforganic matter, N, P and K compared to groundwater and Nile water.On the other hand, most of the soils that were irrigated with sewage water wereof low levels of salinity (ECe < 4dS/m) and sodocity (SARe <13), indicating nothreat to soil quality. Use of sewage water in irrigation also improved the chemicalproperties and fertility status of the soils. It increased OM, N, K and P levels in thesoils while pH and CaCO3 values decreased. The irrigation system showed effectsof treated sewage water on the soil properties. The soils irrigated with sewage waterunder the surface irrigation system had higher values of OM, ECe, total nitrogenand available phosphorus but lower SARe and available K levels than those underthe drip irrigation systems. Moreover, prolonged irrigated (15 years) with sewagewater had a higher values of saturation percentage, organic matter, total nitrogen,available phosphorus, and available K but the lower ones of pH, SARe and calciumcarbonate than those under the short term (4 years) use of sewage water.}, keywords = {Keywords: Long-term, Sewage water irrigation, Chemical soil properties, Drip irrigation,surface irrigation}, url = {https://ejss.journals.ekb.eg/article_3358.html}, eprint = {https://ejss.journals.ekb.eg/article_3358_4d8ca18ff17f26aee9d388e3fda95f43.pdf} } @article { author = {}, title = {Evaluation of Potassium Sources and Rates on the Yield and Quality of Fertigated Potato Grown in Sandy Soil}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {15-21}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3413}, abstract = {A FIELD experiment was conducted in sandy soil at El-Sadat city Menoufiea Governorate, Egypt for two consuctive seasons (2012 and 2013) to investigate the effect of different sources and rates of potassium fertilizers on total yield and tuber quality of potato (Solanum tuberosum L.). Cv. Diamante grown on sandy soil. The experiment was conducted under drip irrigation system in split-split design with three replicates. Four sources of potassium were used, i.e. potassium sulphate (K2SO4), potassium chloride (KCl), potassium carbonate (K2CO3) and potassium hydroxide (KOH) with three rates, 80, 100 and 120 kgK2O/fed applied through irrigation water. As regards to sources and rates of potassium fertilizers, results showed significant differences among the sources and rates of potassium fertilizers on total yield, tuber weight, tuber diameter, specific gravity and starch content of tuber. The data revealed that K2SO4 was the best among other sources. Data also showed that yield and quality of tuber increased with increasing potassium rates up to 120 kg K2O/fed. except KCl treatment. In both seasons, the highest tuber yield was 14.85 ton/fed. with potassium sulphate at 120 kg K2O/fed.  }, keywords = {Keywords: Potato,Potassium fertilizers,fertigation,tuber quality}, url = {https://ejss.journals.ekb.eg/article_3413.html}, eprint = {https://ejss.journals.ekb.eg/article_3413_6dbbe9397a7f98e5731a041261f464ca.pdf} } @article { author = {}, title = {Effect of Sources and Rates of Nitrogen Fertilizers on Forage Yield and Nitrate Accumulation for Sudangrass}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {23-30}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3474}, abstract = {A Field experiment was carried out at the Experimental Station Farm in Giza, Agricultural ResearchCenter, Egypt, during the two successive summer seasons of 2012 and 2013. The experiment was tostudy the effect of varying sources, rates of nitrogen fertilizers on fresh and dry forage yields of sudangrass,chemical constituents, nitrate and nitrite accumulation in plant using a split-plot design with three replicates .The main plots were assigned to nitrogen fertilizer sources (Ammonium nitrate NH4 NO3 and ammoniumsulphate (NH4)2 SO4.While, the sub-plots were occupied with rates of nitrogen fertilizer (50, 75, 100, and125 Kg N / fed).The results indicated that the fresh and dry forage yield ton/fed, nitrogen, crude protein,phosphorus, potassium, nitrite (NO2) and nitrate (NO3)contents were significantly decreased in the secondcutting as compared with the first one over both seasons. Using ammonium sulphate "(NH4)2 SO4" was betterthan using ammonium nitrate "NH4 NO3" as a source of nitrogen fertilizer over both cuttings and seasons.Fresh and dry forage yields of sudangrass were significantly increased as nitrogen rates increased from50 to 75 and 100 kg N/fed and significantly decreased due to increasing nitrogen rate from 100 to 125 kg N/fed over both seasons.It can be recommended that mineral fertilizing of sudangrass plants with 75100- kgN/fed is better to get suitable forage yields and reduce nitrate accumulation in plant.}, keywords = {Sudangrass,nitrogen fertilizer sources,Nitrate accumulation}, url = {https://ejss.journals.ekb.eg/article_3474.html}, eprint = {https://ejss.journals.ekb.eg/article_3474_bc1c18342d7d545401f35d4558dfe964.pdf} } @article { author = {}, title = {Assessment of Soil Erosion Risk in The Basin of Wadi Maged in Northern West Coast of Egypt Using Corine Model and Gis Techniques}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {31-45}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3587}, abstract = {S OIL erosion is one of the major threats to the conservation of soil and water resources. The main aim of this research is to determine potential and actual soil erosion risk of Wadi Maged basin using GIS techniques and COo Rdination of IN formation on the Environment (CORINE) model. The main factors of soil erosion including soil erodibility, erosivity, topography and vegetation cover were determined. Initially soil texture, soil depth, and surface stoniness maps were created and intersected in GIS environment in order to generate erodibility map. The Fournier precipitation and Bagnouls–Gaussen drought indices were determined based on meteorological data and erosivity was calculated. Potential erosion risk map was generated by composed soil erodibility, erosivity and slope layers. Results revealed that about 570.1 ha. of the study area was classified as no erosion risk. Areas under low and moderate potential soil erosion risk were about 8279.3 ha. and 10.0 ha. of the study area, respectively. The areas classified as high potential soil erosion risk was a small area (0.2 ha.) in the north. Results of actual erosion risk revealed that actual erosion risk areas were less than the potential one (7044.2 ha.). These results confirm the role of land cover in protecting the soil surface from erosion. The assessment of soil erosion risk helps to prioritize critical areas for adopting suitable soil erosion prevention measures. }, keywords = {CORINE model,Soil erosion risk,GIS,Wadi Maged basin,Egypt}, url = {https://ejss.journals.ekb.eg/article_3587.html}, eprint = {https://ejss.journals.ekb.eg/article_3587_facddc1f5ee9cc8fae0ccfdd18dc78f5.pdf} } @article { author = {}, title = {Evaluation of Growth Parameters for Jatropha curcas L. (Biofuel Plant) under Salinity and Water Stress Using Tensiometer for Irrigation Guiding}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {47-60}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3589}, abstract = {Energy and water scarcity has become a major challenge in many regions of the world. Egypt is an arid/semiarid region with limited fresh water resources. So, a field study was conducted to investigate the growth responses of biofuel plant (Jatropha curcas L.) to a range of soil matric and osmotic potentials with foliar salicylic acid applications. Waters used were four different salinity levels, ranged from 0.32 to 7.0 dS m-1, and irrigation management was provided three different levels of soil matric potential: -6, -8 and -12 kPa. Irrigation process was guide lined using vacuum-gauge Tensiometer. Lab. pre-experiment indicated that relationship between Tensiometer readings and their corresponding soil moisture contents did not appear variation in the range of -6 to -15 kPa soil matric potential (where irrigation was managed). Therefore, Tensiometer apparatus could be used to guide irrigation process through a wide range of saline water on sandy soil. Obtained results indicated that, on early-growth stage, the most potential vegetative growth was performed when Jatropha irrigated with salinity level of 0.32 dS m-1 under matric potential ranged from -8 to -15 kPa, and there was no significant difference with that irrigated with 2.3 and 4.7 dS m-1. Therefore, and based on relationship among salinity, matric and osmotic potential, soil osmotic potential must be ganged from 2.5 to 7.5 bar to obtain potential vegetative growth. Regardless of salinity level, application of 5 mM SA can increase the vegetative growth characters under -8 to -15 kPa and appeared to give the most potential compared to 0 and 10 mM. Curves of J. crop coefficient, KC, were constructed over four years growing period. Such curves could provide facility for accurate irrigation schedule under similar studied region. Because of obtained results showed that both vegetative growth and seeds achieved the most performance under -8 to -15 k Pa , it is necessary to multiply KC values by 0.65. Additionally, weak sloping of curves indicates that Jatropha shrub already has low water requirements, particularly in the first three years. The most potential growth and capsule yield at mature stage was performed under treatment in which soil osmotic potential reached 2.9 bar (fresh water) compared to that of 7.2 bar (4.7 dS m-1). Application of 5 mM SA had a positive effect on both vegetative growth and capsule yield with 4.7dS m-1 salinity treatment, compared to those with fresh water. Also, values of leaf relative water content calculated at mature stage indicated that, there was no water deficit in leaf tissues between fresh irrigated and salt-stressed plants.}, keywords = {}, url = {https://ejss.journals.ekb.eg/article_3589.html}, eprint = {https://ejss.journals.ekb.eg/article_3589_59d2d58574caa52e7c6c1c289b0bd4eb.pdf} } @article { author = {}, title = {Effect of Interaction among N Forms and Calcium Sources on Quality and ‎Chemical Composition of Tomato(Lycopersicon esculentum)‎}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {61-71}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3592}, abstract = {A field experiment was conducted at the Experimental Farm of the Faculty of Agric. El-Mansoura Univ. During ‎season of 201‎‏3‏‎ to evaluate the effect of N-fertilization forms and different sources of calcium on chemical ‎constitutes of tomato plant and its quality (Lycopersicon esculentum) "Carmen varaity".‎Twelve treatments were arranged in split block design with 3 replicates, which were the simple possible ‎combination between three forms of nitrogen fertilizers [ammonium sulfate, ammonium nitrate and urea] as main ‎plots, and four sources of calcium (control, calcium chloride, calcium sulfate and calcium nitrate) as sub plots. ‎Thus the total number of plots used for the season was 36 plots.‎The results showed that; soil application of N-forms; ammonium sulfate, ammonium nitrate and urea ‎significantly affected the average values of chlorophyll (a, b and total, mg.g-1), N, P, K and Ca% in the leaves and ‎tomato quality of fruits such as N, P, K andCa%, V.C, total carbohydrates, lycobien , nitrate, acidity and TSS. ‎Except for nitrate and acidity contentsthe highest mean valuewas recorded for the plants treated with ammonium ‎sulfate,while such effect for nitrate and acidity contents were recorded for the treatments of ammonium nitrate and ‎urea, respectivelyexcept for acidity values.‎Also, the results, indicated that the mean values of all mentioned parameters were significantly increased with ‎using different sources of calcium; calcium nitrate, calcium chloride and calcium sulfate comparing with the ‎untreated plants, and the highest values were recorded with using calcium nitrate as a source of calcium.On the ‎contrary of this trend, the average values of acidity were significantly decreased under any source of calcium ‎addition and recorded the highest value for the untreated plants.‎Generally, the most suitable treatment which realized the highest safe yield for tomato fruits was connected ‎with the treatment of ammonium sulfate + Ca2NO3‎.  }, keywords = {N-forms,Ca sources,tomato plant,Quality}, url = {https://ejss.journals.ekb.eg/article_3592.html}, eprint = {https://ejss.journals.ekb.eg/article_3592_ef05c7f84f126c447a3b927ffb567064.pdf} } @article { author = {}, title = {Effect of Phosphorus Level and Some Growth Regulators on Productivity of Faba Bean (Vicia Faba L.)}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {73-87}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3593}, abstract = {A field experiment was conducted on Faculty of Agric. El-Mansoura Univ. during season of 2014-2015 to investigate the effect of phosphorus fertilizer levels with foliar application of (gibberellin, humic acid and cyitokinen) on faba bean (var.sakha 4). Sixteen treatments were arranged in a split-block design, which were the simple possible combination between four levels of phosphorus fertilizer i.e. 0,50, 75 and 100% P2O5/fed (recommended dose) for faba bean plant as main plots and four treatments of growth regulators (without, gibberellin (GA3), humic acid (HA) and cyitokinen (CK)), each treatment was replicated three times. The results showed that; soil application of phosphorus fertilizer levels significantly increased the average values of plant growth parameter ,yield and its components and chemical constituents of faba bean plant as well as available N,P and K of soil after harvesting stage . The highest values recorded with using 75% from recommended dose P-fertilizers. With in the growth regulators investigated; a superiority effect was happened on all parameters under study for the plants treated with humic acid following with GA3 and lastly CK as compared to control treatment. Generaly, the most suitable treatment, which realizing the highest yield of faba bean seeds was connected with the treatment of 75 % ( R.D) + humic acid .}, keywords = {}, url = {https://ejss.journals.ekb.eg/article_3593.html}, eprint = {https://ejss.journals.ekb.eg/article_3593_1d0ca9ee0f61c61744fae88f5452a38f.pdf} } @article { author = {Rafie, Rafie}, title = {Effect of Water Table Level on Soil and Wheat Productivity in Siwa Oasis}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {89-100}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.3603}, abstract = {S iwa Oasis, which is included under irrigated lands, considered a part of depressions presents in the western desert. This study aims to show how drainage system, water table level and application of farmyard manure (7 Mg/fed) could influence on some soil physical properties and wheat production for the two years 2014 and 2015 and to evaluate the performance of the existing drainage in Bany Beer. The results showed that, there was a negative significant relationship between drainage execution and organic fertilizer with bulk density besides to the soil salinity, while a positive significant relationship with total porosity, hydraulic conductivity and pore size distribution. Drainage execution led to reduce bulk density by 0.7 % whenever it accompanied by organic fertilizer increased it to reach 1.8 %. So, salinity decreased from 7 and 9 % for the first and second layers while it was 51 and 54 % for the third and fourth layers. Generally, it decreased 21, 14, 52 and 53 % for the 1st, 2nd, 3rd and 4th layers, respectively. Hydraulic conductivity increased 221 % when drainage executed while it was 156 % when drainage accompanied by organic fertilizers applied for improving soil physical properties. There was a highly significant relationship between wheat production and aforementioned treatments when comparing with control. Drainage efficiency increased when spacing between drains was 30 m comparing to 50 m. The yield increased from 18 to 71% for the second year comparing with the first one which increased averagely by 23 to 59%. This might be caused by improving soil chemical and physical properties by decreasing water table level and increasing aeration. So, it is recommended to apply drainage system accompanied by organic fertilizers application in Siwa oasis that suffers from water logging problem.  }, keywords = {Drainage system,Logged areas,water table,flooding irrigation system,farmyard manure}, url = {https://ejss.journals.ekb.eg/article_3603.html}, eprint = {https://ejss.journals.ekb.eg/article_3603_124262dae566f52adcb9e8c0e7c46c2f.pdf} } @article { author = {Mousa, Azmy}, title = {Effect of Using Some Soil Conditioners on Salt Affected Soil Properties and Its Productivity at El-Tina Plain Area, North Sinai, Egypt}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {101-111}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.1526}, abstract = {Two field experiments were conducted in El-Tina Plain area, North Sinai, Egypt, to study the effect of biochar and humic acid as nontraditional soil conditioners on some properties of sandy soil as well as the productivity of wheat and corn plants grown on such soil. The two conditioners were applied individually with three rates. The application rates of biochar were 5, 10 and 20 ton./fed., while the respective rates of humic acid were 5, 10 and 20 kg/fed. Results of the present study revealed that the application of all the studied treatments decreased soil bulk density, hydraulic conductivity, pH, EC, soluble Na, SAR and ESP values, while increased cation exchange capacity, organic matter content, total N as well as available amounts of P, K, Fe, Mn, Zn and Cu in soil. Data also indicated that all the treatments significantly increased the grain yields of wheat and corn plants and the treatment (20 kg humic/fed.) was the best one. As the rate of increment over the control due to such treatment reached 39.49 and 37.68 % for wheat and corn grain yields, respectively. Also, macro and micronutrient concentrations of such grains were significantly increased by increasing the application rates of the applied conditioners. Based on results of the current study, it can be concluded that using biochar and humic acid as organic conditioners is helpful to improve soil properties, compensate the deficiency of nutrients in soil and have significant effects on the productivity of wheat and corn plants. These materials are easily producible, biodegradable, less expensive, cause no environmental hazards to human health and will be ecologically safe and culturally more acceptable among farmers. So, it can be recommended to use such materials as soil conditioners under salt affected soil conditions.}, keywords = {Biochar,Humic acid,Salt affected soils,Corn yield,macro and micronutrients}, url = {https://ejss.journals.ekb.eg/article_1526.html}, eprint = {https://ejss.journals.ekb.eg/article_1526_7a939231118807e851ba703919da86de.pdf} } @article { author = {Fanous, Nabile and Mohamed, Amira and Shaban, Khaled}, title = {Effect of Magnetic Treatment of Irrigation Ground water on Soil salinity, Nutrients, Water Productivity and Yield Fruit Trees at Sandy Soil}, journal = {Egyptian Journal of Soil Science}, volume = {57}, number = {1}, pages = {113-123}, year = {2017}, publisher = {The National Information and Documentation Centre (NIDOC) affiliated to Academy of Scientific Research and Technology(ASRT)}, issn = {0302-6701}, eissn = {2357-0369}, doi = {10.21608/ejss.2017.1528}, abstract = {This applied experiment was conducted at private Farm (160 feddan), sustained of soil and water salinity, at Km80 of Cairo-Alexandria desert road (the green wealth farms). Four electromagnetic devise (6 inch) set up on the main ground irrigation sources. One well for each agriculture sector Apricot, Peach, Flame-seedless grape and Thompson seedless grape sectors. These sectors has been irrigated by magnetic treated water (MTW), beginning of December2013, through a drip system. The results indicated that MTW has led to non-significant decrease of water salinity (only from 2.18-3.31 to 2.14- 3.12 dSm-1), pH (from 8.2- 8.3 to 8.25-8.15), SAR (from 6.4-7.7% to 5.6-6.0) and hypothetical NaCl (from 57.37 – 60.53% to 53.31- 58.15%) Concerning the effect of MTW on soil chemical properties, the data showed that soil salinity was decreased after using MTW compared with the normal water. Soil salinity was decrease from 4.88- 6.15 dSm-1to 2.73-4.15dSm-1 and 1.45-2.58 dSm-1 after one month and eight ones of the magnetic treatment, respectively. Besides, pH values were reduced from 8.2-8.3 to 7.9-8.05 before and after magnetic treatment respectively. As well as the hypothetical NaCl and MgCl2 were diminished from 21.5 meq/L and 8.0 meq/L to 6.3 and 3.0 meq/L through eight months from the treatment. It is worth mentioning that the magnetic irrigation had good effects the availability of NPK and micronutrients (Fe, Zn, Cu and Mn) all during fertilization season, entail the observed increasing on the yield of fruits. Thus, the results indicated that the main beneficial of using MTW were in improving yield for Apricot, Peach, Flame-seedless grape and Thompson seedless grape to 40.0, 29.0 23.0 and 19.0 % respectively. Also, raising the efficiency of water productivity till ranged to 40.2, 29.2, 28.0 and 19.3 %, respectively.}, keywords = {irrigation water productivity,Magnetic,sandy soil,Soil salinity,tree production,ground water}, url = {https://ejss.journals.ekb.eg/article_1528.html}, eprint = {https://ejss.journals.ekb.eg/article_1528_611c6602a8b740e1b7cf98721907a3c6.pdf} }