@article { author = {Aldabaa, Abdalsamad and Yousif, Ibraheem}, title = {Geostatistical Approach for Land Suitability Assessment of Some Desert Soils}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {195-209}, year = {2020}, 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.2020.26767.1350}, abstract = {Due to the rapid growth of population in Egypt and the scarcity of land and water resources, the effective management of these resources has become a very urgent necessity to achieve the sustainable agricultural development. Consequently, land suitability assessment is an important tool to manage these resources appropriately. The objective of this study was to use geostatistical approach and geographical information system (GIS) to evaluate the land suitability for some essential crops in Toshka region, Egypt. Soil parameters such as gravel content, soil texture, pH, EC, CaCO3, ESP and CEC were determined, at 1.0 km grid soil sites. Afterward, the geostatistics approach using ordinary kriging interpolation and semivariogram were applied to produce a spatialized and detailed map for each soil parameter. Gaussian, Exponential and Spherical geostatistical models were used to define the spatial variability of soil properties based on RMS, MSE and RMSSE. Also, based on Storie equation the kriged interpolated maps were incorporated in the model builder within GIS environment to achieve the land suitability assessment. The results illustrated that, most of the investigated area are unsuitable (N) for vegetable crops. However, the study area is more promising for field crops where 42.71 % and 11.20 % of the total area are moderately suitable (S2) for barely and alfalfa crops respectively. Furthermore, the results confirmed that, some of orchids crops are very suitable for the study area whereas 6.80 % and 37.81 % of the studied area are highly suitable (S1) and moderately suitable (S2) for olives respectively. On the other hand, the results revealed that the results indicated that, the most limiting factor in the investigated area are EC, pH, calcium carbonate content, CEC and soil texture. Finally, it can be concluded that the geostatistical approach and GIS are powerful and effective tools for land suitability studies and consequently for sustainable planning of land use.}, keywords = {Geostatistics - GIS - Land Suitability,Storie,Toshka}, url = {https://ejss.journals.ekb.eg/article_85049.html}, eprint = {https://ejss.journals.ekb.eg/article_85049_f6db2807044e2dde848125d131745e25.pdf} } @article { author = {Mosa, Ahmed and Taha, Ahmed and Elsaeid, Marwa}, title = {Agro-environmental Applications of Humic Substances: A critical review}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {211-229}, year = {2020}, 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.2020.27425.1351}, abstract = {Improving crop productivity in a sustainable manner represents one of the most important future challenges to provide sufficient food, feed and fiber supplies with minimum deterioration of soil quality. The term "ecological intensification" is recently introduced as an eco-friendly approach for improving crop productivity (maximizing water and nutrient supply potentials of soil) with minimum application of synthetic additives (e.g. mineral fertilizers). Humic substances (the final components of organic matter decomposition) are among the most important natural products that can help in promoting sustainable intensification of crop productivity given their high nutrients content, huge surface area, active biostimulators, stability against microbial decomposition and large number of active functional groups. Consequently, humic substances receive considerable interest for improving soil quality indices, modulating plant physiological responses and maximizing quantitative and qualitative yield parameters. On the other hand, the unique physicochemical characters of humic substances supported its application as an efficient soil amendment toward stabilizing potentially toxic elements. In this review, we will shed the light on the agro-environmental applications of humic substances taking into consideration the state-of-the-art in this regard. Additionally, we will highlight the future perspectives of the ongoing-research about novel techniques of humic substances fabrication/functionalization in several agro-environmental applications.}, keywords = {Humic substances extraction,Plant physiology,soil physicochemical characterization,Soil Quality,and soil remediation}, url = {https://ejss.journals.ekb.eg/article_100757.html}, eprint = {https://ejss.journals.ekb.eg/article_100757_a9298e8b2e3a1c543fea610f75e4eaff.pdf} } @article { author = {khalifa, ramy}, title = {Effect of different irrigation water levels and bio-minerals fertilization on fruit yield, quality and water productivity of watermelon grown on sandy soil, Egypt.}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {231-246}, year = {2020}, 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.2020.29343.1355}, abstract = {A field experiment was conducted in farmer's field located at Gammsa district, Dakahlya Governorate, Egypt, during two successive winter seasons 2017 and 2018, to determine and evaluate the response of watermelon grown on sandy soil to three irrigation regimes; 100%(I1), 85%(I2) and 70%(I3) of soil field capacity and four applications of bio-mineral fertilizers; F1 Applying the recommended dose of NPK (100%RNPK), F2 (85%RNPK + biofertale), F3 (70%RNPK + rhizobacterien) and F4 (55% RNPK+ mixture of biofertale + rhizobacterien). Results showed that both of irrigation and fertilization treatments had highly significant effect on yield and its components of watermelon plants in both seasons. Maximum fruit yield and its components were achieved with I2 and F3 treatments in both seasons. Irrigation with (I2), led to increase fruit yield by (14.26 and 14.30%) compared with I1 and the corresponding values (11.72 and 12.97%) with (F3) compared with F1 in 1st and 2nd seasons, respectively. I3 achieved higher values of TSS, vitamin C, soluble sugar, PIW and water saving. Moreover, F3 followed by F4 produced the highest value of PIW in both seasons compared with F1. The combination of I2F3 has superiority in increasing fruit yield and its quality, net return and economic efficiency. Net return from water unit was resulted from the combination of (I3F4) and (I3F3) as compared with (I1F1) in both seasons, respectively.Generally, it can be concluded that I2F3 or I2F4 is the most efficient treatment for achieving economical watermelon fruit yield, economic return and saving water and mineral fertilizers.}, keywords = {Bio- chemical fertilizers,fruit yield and quality of watermelon,Drip irrigation,Productivity of irrigation water,sandy soil,economic return}, url = {https://ejss.journals.ekb.eg/article_102973.html}, eprint = {https://ejss.journals.ekb.eg/article_102973_3977e3c6d056ca2ee9255b513e44c507.pdf} } @article { author = {Abdurrahman, Hamdy and Ahmed Abdel-Hafeez, Abdel- Nasser and Kamel, Gamal and Ahmed, Howaida}, title = {Assessment and Spatial Distribution of Cadmium, Nickel and Lead within Soils of Sinnours, Fayoum, Egypt}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {247-261}, year = {2020}, 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.2020.31481.1360}, abstract = {Spatial distribution of cadmium (Cd), nickel (Ni) and lead (Pb) has been studied in Sinnors District, Fayoum, Egypt using grid system- log distance of two km. data showed that the overall mean of each of Cd and Pb concentrations have been higher within the higher 30 cm of soils than the ones of the (30 – 60 cm) layer indicating Cd and Pb pollution of soil surface probably through the high ranges of applied chemical fertilizers especially superphosphate and irrigation the use of combined Nile with drainage water inside the studied. The suggest concentrations of general Ni have been extra inside the subsurface than the higher soil layer indicating Ni normal soil contamination likely from parent material. The maps generated through GIS are beneficial for decision makers for land use planning, conservation and evaluating the level of environmental infection with hazardous metals. The authors emphasize the actual absence of Egypt to develop detailed standards for the assessment of soil pollution with heavy metals primarily based on the nature and properties of the Egyptian soils.}, keywords = {Cd,Pb,NI,Sinnours,Fayoum,Egypt}, url = {https://ejss.journals.ekb.eg/article_106917.html}, eprint = {https://ejss.journals.ekb.eg/article_106917_29df0fe8db815e74c38d419b59241c87.pdf} } @article { author = {Abou hussien, Elhusieny and Ismail, Mohamed and Omran, Wail and Abou Alfotoh, Mohamed}, title = {Water Harvesting For Sustainable Development of El-Hraka Basin in the North-western Coast of Egypt}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {263-276}, year = {2020}, 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.2020.31570.1361}, abstract = {Water resources in the northwest coast of Egypt are very limited in terms of quantity, as they are produced mainly from rainwater in the winter season. Water scarcity is the main impediment to development activities in the region. Prepare Water Harvesting (RWH) is one of the most effective solutions to beat this problem. El-Hraka basin is located in northwest coast of Egypt near Matrouh city between Latitude s31° 13' 23.926" N , 30° 55' 54.439" N and longitudes 27° 25' 45.747" E and 27° 20' 5.097" E. The aim of this study is to assess the potentiality of El Harak basin for water resources management and agricultural development activities. The study aimed also to predict annual peak flow and runoff water volume, as well as the 20, 10, 5, 3, and 2year return periods. Results referred that El-Hraka basin characterized by area of 178.31km2, basin length of 33.70 km, perimeter of 132.8 km, and gentle slope of 0.012 m/m. There are four types of land use/land cover in the study basin: agriculture land, bare land, rocky areas and urban representing 3.45, 92.98, 3.41 and 0.16% of El Hraka basin, respectively. There are two hydrologic soil group of the study basin A and C depending on the soil texture. The Curve Number (CN) of the study basin depending on the land use / land cover and the hydrologic soil groups. Its average values are 73.67 for El-Hraka basin. The annual runoff water volumes are 10583.29 m3. However, the annual infiltration volumes are 8195.01m3. The peak flow of the 20 year return period flash flood is 29.24m3/s for the study basin, while the value for the 10 year return period flash flood is 17.98 m3/s. The peak flow for the 5 year return period reaches 9.50 m3/s for the 3 year return period peak flow is 3.78 m3/s, while the 2 year return period peak flow is 0.75 m3/s. The runoff volume of the 20 year return-period is 2777883.3 m3, while for the 10 year return period is 1713298.9 m3. The Runoff volume for the 5 year return-period reaches 906578.6m3; and for the 3 year return period runoff volume is 359883m3, while the 2 year return period is 69989.4 m3 for the study basin.}, keywords = {CN,WMS Modeling,DEM,RWH,NWCZ,HSG and SCS}, url = {https://ejss.journals.ekb.eg/article_106919.html}, eprint = {https://ejss.journals.ekb.eg/article_106919_09d97e2580bf06a22194581c4387930f.pdf} } @article { author = {Abou Hussien, Elhusieny and Ahmed, BASMA and Elbaalawy, Ahmed}, title = {Efficiency of Azolla and Biochar Application on Rice (Oryza sativa L.) Productivity in Salt-Affected Soil}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {277-288}, year = {2020}, 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.2020.33148.1364}, abstract = {A field experiment was conducted during two successive summer seasons of 2018 and 2019 to investigate the effect of biochar application rate and Azolla application time on rice (Oryza sativa L.) plant productivity under salt affected soils. The obtained data show significant increases of straw and grains yield as well as biological yield (Mg fed-1) as a result of Azolla and biochar application. The treatment of 10 Mg biochar fed-1 and Azolla at rate of 180 kg fed-1 in two equal doses at 0 and 35 days of transplanting was associated with high yields of straw and grains. Nutrients content (%) and uptake (kg fed-1) as well as the relative changes of their uptake by either straw or grains were increased as a result of individual and combined applications of biochar and Azolla. With the same treatment of biochar and Azolla N, P and K content (%) and uptake (kg fed-1) in grains were higher than those found in straw. There is a wide variation in straw and grains content of N, P and K, in response to the studied treatments. Also, in both straw and grains under different fertilization treatments, the content of the determined nutrients takes the order K> N> P. These findings concluded that, reducing of salt stress and increasing productivity of salt affected soils may be achieved through biochar and Azolla application.}, keywords = {: Azola,Biochar,Rice production and Salt affected soils}, url = {https://ejss.journals.ekb.eg/article_108123.html}, eprint = {https://ejss.journals.ekb.eg/article_108123_fa9ee9c9a551e5d4fe99c3166a2a1a97.pdf} } @article { author = {Fadl, Mohamed and Sayed, Yasser}, title = {Land Resources Evaluation for Sustainable Agriculture in El-Qusiya Area, Assiut, Egypt}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {289-302}, year = {2020}, 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.2020.33931.1365}, abstract = {Increasing the cultivated areas in Egypt is necessary to achieving over-growing population sufficiency. However, accurate land evaluation is great concern to achieve sustainable agricultural production. The current study aimed to evaluating land capability and suitability in El-Qusiya City, Assiut Governorate, Egypt using Remote Sensing (RS) and Geographic Information Systems (GIS) techniques. The soils of the study area belonged two land capability classes according to Storie index; fair (Grade 3) that occupied an area about 53.97‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 (56.95%) of the total study area, and poor (Grade 4) that occupied an area about 40.79‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 (43.046%) of the total study area with slope and other soil limitation factors, and two suitability class according to Sys and Verheye system; classes marginal suitable (S3) that occupied an area about 65.85‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 (68.93%) of the total study area with severe limitations and presently not suitable (N1) that occupied an area about 28.91‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 (30.26%) of the total study area with very severe limitations that can be corrected. The Cervatana model showed that land capability classes of the study area are good (S2) ) that occupied an area about 62.8 ‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 of the total study area, moderate (S3) that occupied an area about 3.05 ‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 of the total study area and marginal (N) that occupied an area about 28.91 ‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬km2 of the total study area with limiting factors of soil (i), erosion risks (r) and bioclimatic deficit (b). The Almagra model for land suitability appraisal of different crops (Wheat, Maize, Watermelon, Potato, Soybean, Cotton, Sunflower, Sugar beet, Alfalfa, Peach, Citrus, and Olive) evaluation illustrated that the area belonged to suitability classes of high suitable (S2), moderate suitable (S3), marginally suitable (S4) and not suitable (S5). with limitation factors of texture (t), drainage (d), carbonate (c), salinity (s), sodium saturation (a) and profile development (g). The most obvious limiting factors for the selected crops were salinity and sodium saturation.}, keywords = {Land evaluation,land capability and suitability,Sustainable agriculture}, url = {https://ejss.journals.ekb.eg/article_108125.html}, eprint = {https://ejss.journals.ekb.eg/article_108125_5b5bc3bdf357fbcb99a1b03817fab50b.pdf} } @article { author = {Elbaalawy, Ahmed and Abou Hussien, Elhusieny}, title = {Using Compost Tea to Maximize Use Efficiency of Phosphatic Fertilizers and its Effect on Health and Productivity of Calcareous Soil}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {303-315}, year = {2020}, 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.2020.34055.1366}, abstract = {A field experiment was carried out during two successive seasons (2018 and 2019) to evaluate the efficiency of P fertilization alone, in alternative with non-enriched compost tea (NECT) and together with enriched compost tea (ECT) at two application rates. The studied treatments were arranged within the experimental units in completely randomized block design. The effect of P treatments on soil chemical properties and its content of available nutrients, nodulation efficiency and soil productivity of common bean (Phaseolus vulgaris) plants and its content of essential nutrients was studied. Increasing rate of added P as H3PO4 in the three forms resulted in a decrease of soil pH and its content of CaCO3, slight increase of EC, and increase of soil CEC and its content of OM and available macro (N, P, K and Ca) and Micro (Fe, Mn, Zn and Cu) nutrients, where these changes were occurred with different rates. The high relative changes for the studied determinations were found with the treatment ECT P followed by those found in the soil fertigated by P+ NECT. Also, increasing rate of added P in the three forms resulted in increase in the formed root nodules, yield of common bean (straw and seeds) plants and its content of N, P, K, Ca, Fe, Mn, Zn, Cu and protein. As well as added P in ECTP followed by the applications of P+NECT increased the agronomical efficiency of P fertilizers under calcareous soil conditions.}, keywords = {Calcareous soil,phosphorus,compost tea,Agronomical efficiency and Common bean}, url = {https://ejss.journals.ekb.eg/article_108106.html}, eprint = {https://ejss.journals.ekb.eg/article_108106_0dbbc67b8fc3da002197709798a4a1f3.pdf} } @article { author = {Marzouk, Neama and Hassan, Nagwa and Fawzy, Zakaria and El-Ramady, Hassan}, title = {Cassava Cultivars Response to Different Levels of Potassium Fertilization under Drip Irrigation and Sandy Soil Conditions}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {317-334}, year = {2020}, 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.2020.34054.1367}, abstract = {Two field experiments were conducted at Nubaria region (Behira Governorate), Egypt, during the two successive seasons of 2016/2017 and 2017/2018 to study the response of vegetative growth, yield and quality of cassava crop. Three cassava cultivars (i.e., American, Brazilian and Indonesian cultivar) and three levels of potassium fertilizers (i.e., 75, 150 and 250kg K2Ofed-1) were investigated. The results indicated that, American cassava cultivar recorded the highest vegetative growth, yield and its quality as well as higher chemical composition plants, which were received 250 kg K2Ofed-1. This study also confirmed that the optimum K- nutrition for cassava under sandy soils might support the cultivated cassava plants in their growth, yield and yield quality. This work also could present more details about the suitability of some cassava cultivars to cultivate under sandy soils and drip irrigation and which dose of K-nutrient should be applied. Further investigations are needed to carry out to make a complete program for the fertilization and irrigation of different cassava cultivars under arid conditions in Egypt.}, keywords = {Cassava,Chlorophyll,fertilizer,Growth,yield,Soil fertility,Macro-nutrient}, url = {https://ejss.journals.ekb.eg/article_111055.html}, eprint = {https://ejss.journals.ekb.eg/article_111055_022d706a98c1f18f2efe0b960050fa67.pdf} } @article { author = {Youssef, Mohamed and Abdel-Gawad, Asem and Khalifa, Yasser}, title = {Role of Organic Food Wastes on Soil Fertility, Growth and Yield of Stevia Crop}, journal = {Egyptian Journal of Soil Science}, volume = {60}, number = {3}, pages = {335-347}, year = {2020}, 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.2020.34458.1368}, abstract = {A field experiment was conducted at the Experimental farm, Soils and water Department, Faculty of Agric., Al-Azahar Univ., Assuit, Egypt, during two successive growing seasons of 2018 and 2019. The study aims to assess the influence of organic food wastes (Eggshell, Banana peels, Green pea peels and Potato peels) are sources of some nutrients and Soybean protein isolate as a source of nitrogen on the soil fertility, growth parameters, yield and quality of stevia plant under drip irrigation system.The result showed positive increase in all growth parameters and yield of sativa plant as well as improving soil properties by adding organic food wastes. The most effective treatment was the combination of C4 treatment (50% organic-N from isolated soy protein, 12.5% banana peels, 12.5% eggshell, 12.5% green pea peels and 12.5% potato peels). The highest total chlorophyll value of 4.48 and 3.61 mg/g fresh weight in the 1stand 2nd cutting, respectively in the 1st season were obtained under C4 treatment. The corresponding values were 4.89 and 4.02 mg/g fresh weight in the 2nd season. The highest values of dry leaf yield 843 kg plot-1 and biological yield 1.60 kg plot-1 were noticed under C2 treatment in the 2nd cut in the first season. In the second season, the corresponding values were 1242 and 2.19 kg plot-1 resulted from C4 treatment in the 2nd cut. The highest values of protein content 10.73 and 13.72% in 1st and 2nd cut, respectively were realized under C4 treatment in the 1st season. The corresponding values were 15.0 and 18.11% for C4 treatment in the 2nd season. In the 1st season, the highest values of stevioside content were 8.49 and 8.98 % in the 1st and 2nd cut for C4 and C2, respectively. In the 2nd season, the highest values of stevioside content were 9.69 and 10.05 % in the 1st and 2nd cut for C2 treatments, respectively. Available N in C0 treatment Control (without applied fertilizers) had the lowest values of both seasons compared to the C4 treatment that had the highest values of both forms in both seasons. The overall results suggest that organic food wastes combination could be advised to grow stevia plant and improving soil properties of Egypt.}, keywords = {stevia plant,stevioside,Organic food wastes,Soil fertility,Soybean protein,banana peels,Eggshell}, url = {https://ejss.journals.ekb.eg/article_108132.html}, eprint = {https://ejss.journals.ekb.eg/article_108132_4c60e34b960a44f93ffcf5df1f439960.pdf} }