@article { author = {}, title = {Effect of Potassium and Nitrogen Fertilization on Some Macro-nutrients Utilization Efficiency by Wheat}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {373-384}, year = {2016}, 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.2016.3173}, abstract = {  TO STUDY the effect of potassium and nitrogen fertilization treatments on wheat yield, P & K uptake and P & K utilization efficiency for wheat (Triticum aestivum, L.), variety Sakha 93, two field experiments were conducted on a clay saline soil at El-Serw Agricultural Research Station, Agricultural Research Center, Egypt during 2011/2012 and 2012/2013 winter seasons. The experiments were carried out in a split plot design with four replicates. Main plots were assigned to potassium applications (0, 47.4 & 94.8 kg K ha-1). The sub plots were divided by mineral nitrogen treatments as follows: 44.5, 89, 133.5, 178 and 214 kg N ha-1. Wheat yield (grain & straw) and P & K-uptake by (wheat grain & straw) increased with increasing potassium rate up to 94.8 kg K ha-1, but P & K utilization efficiency by wheat crop was decreased. Also, these results showed that 214, 178, 133.5, 89 and 44.5 kg N ha-1, respectively gave the highest values of the previous parameters except the PUtE and KUtE, where the order of values was upward with the order of the previous treatments. The interaction between 94.8 kg K ha-1 and 214 kg N ha-1 gave the highest wheat yield (grain & straw) and P & K uptake by grain and straw and gave the lowest PUtE and KUtE in both seasons. So, it is preferred to add 94.8 kg K and 214 kg N ha-1 to economic production of wheat grain and straw especially in saline soil. Also, the highest results of PUtE and KUtE in both seasons were obtained with interaction between 0 kg K ha-1 and 44.5 kg N ha-1, it indicates shortages in uptake of phosphorus & potassium with nitrogen & potassium deficiency.    }, keywords = {Wheat,nitrogen,potassium,fertilization,phosphorus,Efficiency}, url = {https://ejss.journals.ekb.eg/article_3173.html}, eprint = {https://ejss.journals.ekb.eg/article_3173_7b3efaae26c18cdc1255862a1e6c09ea.pdf} } @article { author = {}, title = {Comparative Study between Different Chopping Rotations and Raw Materials for Composting Process}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {385-400}, year = {2016}, 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.2016.2764}, abstract = {                                                                           RECYCLING of crop residues in agriculture through production of …… compost brings much needed organic matter to the soil. Composting was studied by using three chopping rotations 1000,1300 and 1500 rpm, three feeding rates of 0.250,0.500 and 0.750 t/h of both rice and corn residues and with application of mixture from different bacterial inocula (cellulose decomposing bacteria cellomonas sp., nitrogen fixing bacteria Azotobacter chroococcum, Phosphate dissolving bacteria Bacillus megatherium and Sacchromyces cervisiae).The performance of chopping machine during cutting rice straw and corn stalks residues in terms of particle size distribution, energy, C/N ratio, P, pH, microbial activities and maturity duration were experimentally investigated as a function of change in chopper drum speed and material feed rate. The results reveal that the farm residues chopping machines were recommended to be used for cutting the crop residues into small pieces to encourage the microbial activities. The best treatment was achieved with chopper drum speed of 1500 rpm and material feed rate of 0.250 t/h with biofertilizers application for both corn stalks and rice straw residues, which produced a compost with maturity period lower than compost without biofertilizers application, narrow C/N ratio, rich with mineral contents like P and K for corn stalks and rice straw, respectively.       }, keywords = {Chopping rotations,crop residues,Maturity composting and Microbial activity}, url = {https://ejss.journals.ekb.eg/article_2764.html}, eprint = {https://ejss.journals.ekb.eg/article_2764_b1c4988eeb962ec183d6a148afb1428c.pdf} } @article { author = {}, title = {Response of Tomato Plants to Foliar Application of Humic, Fulvic Acid and Chelated Calcium}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {401-411}, year = {2016}, 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.2016.2985}, abstract = {      INFLUENCE of humic, fulvic acid and calcium foliar application on growth, yield and quality of tomato (H9663 hybrid) was investigated during 2013 and 2014 summer seasons. The experiment was designed in completely randomized block at the Experimental Station, Faculty of Agriculture, Cairo University, Giza, Egypt. Solutions of humic acid (0.4 %), fulvic acid (4%) and chelated calcium (0.25 %) were applied as foliar sprays alone or in combinations on tomato plants at four times after two, four, six and eight weeks from transplanting. Vegetative growth parameters and nutrients content (N, P, K and Ca) of tomato plants as well as yield, fruits quality and incidence percentage of blossom end rot in fruits were investigated on treated and untreated plants. Results indicated that the foliar application of humic, fulvic acid and calcium either individual or in combinations increased vegetative growth, yield, fruit quality and decreased the incidence of blossom end rot in tomato fruits.    }, keywords = {Humic acid,Fulvic acid,calcium,foliar application,Blossom end rot,Tomato}, url = {https://ejss.journals.ekb.eg/article_2985.html}, eprint = {https://ejss.journals.ekb.eg/article_2985_8d084ccf115ba15187d063ae973e691b.pdf} } @article { author = {}, title = {Evaluation of Nutrient Index to Assess Soil Fertility in The South East El- Qantara, North Sinai}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {413-432}, year = {2016}, 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.2016.3075}, abstract = {    THE GOVERNMENTAL plan aims for reclamation and cultivation of about 400,000 feddans concentrated mainly in El-Tina Plain (50,000 feddans), South East El-Qantara (75,000 feddans), Rabaa (70,000 feddans), Bir El-Abd (70,000 feddans) and El-Ser and El-Qawarir (135,000 feddans) areas.. The present study revealed that there is no much variation in soil fertility status of soils developed on various landforms in the studied area as the soils have low to medium organic carbon (0.14 to 1.20 %), low available nitrogen (4.19 to 46.70 mg/kg); low to high available P (4.11 to 59.23 mg/kg) and deficient to adequate available K (34.00 to -825 mg/kg) contents. The soils of South East El-Qantara were categorized according to nutrient index into medium-low-medium-low (MLML) category based on OC, available N, available P and available K concentrations, respectively.    }, keywords = {Nutrient index,Evaluation,Soil fertility,North Sinai}, url = {https://ejss.journals.ekb.eg/article_3075.html}, eprint = {https://ejss.journals.ekb.eg/article_3075_71d32790c6d88b1d55d1b7cc9b674f73.pdf} } @article { author = {Rashed, Heba}, title = {Change Detection in Land Degradation and Environmental Hazards Sensitivity in Some Soils of Siwa Oasis}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {433-451}, year = {2016}, 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.2016.3135}, abstract = {SOME selected soils of Siwa Oasis were characterized, classified and …. evaluated for land degradation. Soil samples from pedogenic horizons were analyzed. The total investigated area is 126166.7 (529.9 km2). The study revealed seven major physiographic units in the area: sand sheets, hummocks, alkali flats, overflow basins, decantation basins, mountain footslopes and hill footslopes. One soil profile was taken from each of the physiographic units. Since cultivation started in Siwa, several problems have arisen including wind erosion, soil salinity, sodicity, drought, water-logging and expansion of the water bodies. Wind erosion hazard status ranged from none to very severe hazards. Salinity hazard ranged from slight to very severe hazards, 85.70% of the total area showed increased salinity (27610.01 ha). Sodicity hazards ranged from slight to very severe, 71.31 % of the total area showed increased sodicity (22970.05ha). Waterlogging hazards ranged from moderate to severe; 70.60 % of the total area showed a rise in water table level (22740.05 ha). There are changes between land cover feature in between 1999 and year 2014. The increment of agricultural area with 14616 ha. Enlargement of area of lakes and ponds increased by 3190 ha.  The soils which altered to salinity in area 94 ha and the area of wetlands decreased 187 ha.  }, keywords = {Siwa Oasis,land degradation,salinity,water logging,Wind erosion}, url = {https://ejss.journals.ekb.eg/article_3135.html}, eprint = {https://ejss.journals.ekb.eg/article_3135_d346f8099c40185708040ad2757be2d1.pdf} } @article { author = {}, title = {Evaluation of Sustainable Land Management on Some Selected Soils of Siwa Oasis}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {453-470}, year = {2016}, 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.2016.3174}, abstract = {                                                                                    SIWA Oasis is a depression located 450 km west of Nile ……...valley, 95 km east of the Lybian borders. It is the farthest from the Nile valley.  It is called “Amoun Oasis”, and represents the last virgin Oasis in the Western Desert of Egypt. Decision Supporting System DSS - SLM model was used for sustainability assessment on the basis of “An International Framework for Evaluating Sustainable Land Management FESLM". The five FESLM pillars used are: productivity, security, protection, economic viability and social acceptability; assessed under the umbrella of bio-physical and socio-economic conditions through questionnaires held with land-users. The mapping unit OB showed the highest sustainability index followed by mapping unit DB (0.27 and 0.15, respectively). Mapping units OB and DB were short of meeting sustainability requirements (class III). The remaining mapping units have zero value of sustainability index; due to management practices which did not meet sustainability requirements (class IV). Four strategy scenarios were identified for land use (agriculture, industry, tourism and housing). Soils are suitable for tolerant and semi-tolerant plants, tolerant: date palm or olive trees, because they have salinity resistance. Land users cultivate crops of high profits such as cash crops vegetables (as tomato and onion), field crops (as alfalfa) and orchards (as olive trees, date palms, guava and citrus). Olives showed the highest profits followed by date palms achieving high benefit/cost ratio of 1.88 and 1.86, respectively.     }, keywords = {Siwa Oasis,Sustainable agriculture,Sustainable Development,sustainable land management,soil security}, url = {https://ejss.journals.ekb.eg/article_3174.html}, eprint = {https://ejss.journals.ekb.eg/article_3174_e9248c023ae4ecdcfbd81a5f120eb0bb.pdf} } @article { author = {}, title = {Monitor of Changes of Land Uses and Soil Characteristics at North West Area of Sinai Using Satellite Imagery, Egypt}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {471-787}, year = {2016}, 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.2016.3245}, abstract = {            INFORMATION on changes in land use and soil characteristics   ......due to either land degradation or reclamation in the form of maps and statistical data is very necessary for natural resources planning, management and utilization of land for agriculture production. The current study has been conducted at North West area of Sinai (El-Tina Plain), as a recent reclaimed area, bounded by long. 32о 20` 00``E and 32о 33` 25``E and lat. 30о 57` 15``N and 31о 04` 02``N, to monitor of changes that occurred in land uses over the period between 2000 and 2014 years by using the multitemporal analysis of satellite imagery and in some characteristics of the soil (soil salinity and ground water level) that hinder or reduce crop productivity. Landsat images, GIS, field work, laboratory analysis and previous studies data were used as the main sources of information to map land use, soil salinity and water table at the study area. The ETM+7, SPOT-xs and OLI 8 images were visually interpreted to produce different land use maps, each of them correspond to specific date. The area of each land use unit was measured in Arc-GIS software. Change detection has shown that the cultivated land area was increased by 10.5 % from about 18.8 % (7183.1 fed) in (2007) to 29.3 % (11189.4 fed) in the year (2014).Also, the area with fish farms has been increased to 43.2 % (16473.8 fed)  and the land under reclamation decreased to 21% (8035.4 fed) in year 2014. Improvement trend in soil salinity was recorded in El-Tina plain soils due to reclamation process through 2006 – 2014 periods. However, an area of about 13311 fed showed a trend of degradation due to the rise of ground water level to < 50 cm from surface soil. The study is considered of vital importance for decision makers and for the management of natural resources in North West area of Sinai (El-Tina Plain).    }, keywords = {land use,Soil salinity,Groundwater,Remote Sensing,GIS,El-Tina Plain}, url = {https://ejss.journals.ekb.eg/article_3245.html}, eprint = {https://ejss.journals.ekb.eg/article_3245_1a60d517a5572ae9623f2144ac5808f7.pdf} } @article { author = {Niazy, Magdy and Fouda, Sara}, title = {Reducing the risk of Cdin Llettuce (Lactuca sativa L.) via Silicon Application}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {489-501}, year = {2016}, 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.2016.861}, abstract = {    CONTENT of Cdin freshvegetablescan be decreased by application of silicate fertilizerswhich decrease Cd concentration in the plant tissues. Lettuce plants (Lactuca sativa L.) were evaluated in a pot experiment were grown on artificially contaminated soil with Cd at 0, 5, 10 and 15 mg Cd kg-1 applied as cadmium sulfate hydrate (3 CdSO4: 8 H2O).Three levels of Si (0, 100 and 150 mg Si kg-1) were applied as calcium silicate (CaSiO3) to assess Cd status in soil and plant. Si increased plant dry weight and the highest dry weight was given by the treatment of 5mg Cdkg-1 and150 mg Si kg-1. Si-treated soil showed greater Cd than untreated one. All Cd-treated soils had considerably high contents of DTPA-extractable Cd in soils. Relationships between Cd and Si treated soils and Cd concentration in plant roots show that increased Si and Cd application leads to decreasing the Cd in the root after harvesting. The bio-concentration factor (BCF) was calculated to assess Si influences on Cd uptake. The BCF is a ratio of metal content in plant roots to its content in soil, in most cases the BCF1 and decreased gradually with the Si additions.   The treatment of 150 mg Si kg-1 proved an effective level of Si that decreased Cd uptake in lettuce plant.  }, keywords = {cadmium,contaminated soil,lettuce,Immobilization,Silicon nutrition}, url = {https://ejss.journals.ekb.eg/article_861.html}, eprint = {https://ejss.journals.ekb.eg/article_861_776d78df76910502750b0785a25d01d4.pdf} } @article { author = {}, title = {Influence of Organic Acids on Nutrients Availability from Natural Alternative Fertilizers}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {503-517}, year = {2016}, 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.2017.1059}, abstract = {         A FIELD experiment was carried out during the summer  ………season with sesame and the winter season with wheat crops in a sandy soil at the Ismailia Agric. Res. Station. The work aimed to study the role of organic acids in nutrients availability and productivity of both indicated crops. Urea- formaldehyde, rock phosphate, feldspar and acidulation with different organic acids ((humic, fulvic, tartaric, salicylic and oxalic) and mineral acid sulphuric) at two concentrations 10 and 15% (C1) and (C2) were used. Results revealed that acidulation had positive effect on chemical properties as well as availability of soil N, P and K nutrients compared to the control treatments; soil pH  decreased especially with C2 which relatively raised soil EC. Also, there was a significant increase in the availability of N, P and K in soil; again, the superiority was with the second concentration. There was a significant response to acidulation compared to the control treatment when assessing yield of each grains or seeds and straw of both wheat and sesame crops, especially when using the second concentration (C2). An increase in the total content of NPK elements with acidulation treatments compared to the control for both wheat and sesame crops was observed. The results also showed high response to salicylic acid compared to other acids while the oxalic acid being inferior. Finally, urea- form, rock phosphate and feldspar (alternative fertilizer) under acidulation with different acids could be a promising approach to enhance release of available N, P and K and to improve soil chemical properties which will be reflected on the yield along with total content of nutrients.    }, keywords = {Acidulation,Urea-form,Rock Phosphate,feldspar,Macronutrients availability,Wheat and sesame yield}, url = {https://ejss.journals.ekb.eg/article_1059.html}, eprint = {https://ejss.journals.ekb.eg/article_1059_8dafc4c85fc65b74035f78d82f6113a6.pdf} } @article { author = {}, title = {Effectiveness of Soil Amendments Application on Sandy Soil Properties and Peanut Productivity}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {519-535}, year = {2016}, 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.2017.1067}, abstract = {     A FIELD experiment was carried out for two successive summer ……seasons at Ismailia Agric. Res. Station, Ismailia Governorate, Egypt (Latitude, 30o 35' 41.901" N and longitude, 32o 16' 45.834" E) to investigate the effectiveness of soil amendments on sandy soil properties, nutritional status and peanut productivity. Two forms of organic amendments (Compost and Farmyard manure, FYM) at two rates (5 and 10 m3/fed.) and three forms of mineral amendments (Gypsum, Rock phosphate and Felds par) were applied each alone at two rates (1 and 1.5 ton/fed.).  Results indicate that values of field capacity (FC), wilting point (WP) and available water (AW) increased significantly by the application of both organic and mineral amendments as compared to control treatments at both studied seasons. Moreover, data indicate that values of soil moisture content (FC, WP and AW) increased significantly by increasing the rate of both organic and mineral amendments, however high rate was superior. Gypsum and farmyard manure treatments recorded the highest values of soil moisture content.   The available N, P and K in soil increased significantly in case of applying either10 m3/fed Compost and FYMor1.0 ton/fed of Gypsum, rock phosphate and Feldspar. On the other hand, the pH and EC values, decreased by applying different soil amendments. Moreover, the application of gypsum (1.0 ton/fed.) and FYM (10 m3/fed) gave the highest significant yield components as well as crude protein percentage as compared to either control or other tested treatments. The same trend was observed with (N, P and K) total content of grains, straw and apparent nutrients use efficiency for peanut.   Finally, application of FYM and Gypsum as soil amendments at a rate of (10 m3/fed and 1 ton/fed) respectively, improved soil chemical and physical properties and increased apparent nutrients use efficiency and yield components of peanut as well as their total content of macronutrients.    }, keywords = {organic amendments,mineral amendments,soil properties,Peanut yield}, url = {https://ejss.journals.ekb.eg/article_1067.html}, eprint = {https://ejss.journals.ekb.eg/article_1067_f5ef3f55245e1f36c0719ac14cd2bc71.pdf} } @article { author = {}, title = {Land Evaluation of Eastern Suez Canal, Egypt Using Remote Sensing and GIS}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {537-548}, year = {2016}, 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.2017.1068}, abstract = {  T HE RAPID population growth in Egypt has accelerated desert reclamation to attain food security. The present work aimed at exploiting remote sensing and GIS for assessing land capability and crop suitability of soils located on the eastern side of Suez Canal, Egypt. The studied soils  occupy an area of 220.7 km2 (22070 ha) and locatebetween latitude 30° 29' 47" and 30° 42' 45" N and longitudes 32° 24' 1" and 32° 29' 37" E. The physiographic investigation reveals that the sand plain is the major landscape, which includes one landform, namely the sand sheet. It is subdivided into three units; low, moderate and high, covering areas of 105.6, 103.1 and 12.0 km2, respectively. The soils are classified as Typic Torripsamments, with sand being the dominant texture class. The land capability spatial model (LCSM) showed that the fair soils occupy an area of 208.7 km2, representing 94.6% of the total area, whilethe poor soils occupy an area of 12.0 km2 and represent 5.4% of the total area. It is clear that soil texture is the limiting factor for land capability.The Applied System for Land Evaluation (ASLE) computer program was used for assessing land suitability for 12 crops;alfalfa, peanut, sugar beet, wheat, onion, tomato, watermelon, citrus, date palm, fig, grape, and olives. The clay content is the limiting factor. The soils would be suitable (S2) and marginally suitable (S3) for the selected crops. The most recommended crops would be peanut, tomato, and date palm as the soils appeared suitable for their requirements.     }, keywords = {Land capability,Land suitability,Eastern Suez Canal,Remote Sensing,GIS,ASLE}, url = {https://ejss.journals.ekb.eg/article_1068.html}, eprint = {https://ejss.journals.ekb.eg/article_1068_db5797b7dbe7c0f2ad2c8bbce053c140.pdf} } @article { author = {fouda, karim}, title = {Response of Onion Yield and Its Chemical Content to NPK Fertilization and Foliar Application of Some Micronutrients}, journal = {Egyptian Journal of Soil Science}, volume = {56}, number = {3}, pages = {549-561}, year = {2016}, 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.2017.1083}, abstract = {THE PRESENT study was conducted at the Experimental Farm of the Faculty of Agric., MansouraUniversity. Six treatments were arranged in Randomized Complete Block Design with three replications as follows: 50% and 100% from the recommended doses (RD) of NPK, 300 Fe mg L-1 + 50% from RD of NPK, 50 Cu mg L-1 +50% from RD of NPK, 100 Zn mg L-1 + 50% from RD of NPK and Fe + Cu + Zn + 50 % from RD of NPK. Micronutrients were added as foliar application while NPK as soil addition. Obtained results indicated that all treatments under investigation significantly affected all traits. The highest values of vegetative growth parameters including fresh, dry weight of bulb and total yield as well as N, P, K, Cu, Fe and Zn, beside nitrate reductase activity in onion bulb recorded with using 50% NPK as soil addition and foliar application of (Fe + Zn + Cu). NO3-N and NO2-Nin onion bulb also recorded the highest mean values with the untreated plant (control). The highest availability values of N, P and K in the soil after harvesting were recorded in case of the addition of Fe + Cu + Zn + 50% RD from NPK.    }, keywords = {NPK fertilization,Micronutrients,chemical content,Soil nutrients Availability and onion}, url = {https://ejss.journals.ekb.eg/article_1083.html}, eprint = {https://ejss.journals.ekb.eg/article_1083_2a1a67d921473bfc649ac99c1925a1bd.pdf} }