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|Title||Determination of Physico-chemical Properties of Top Soil in Gaza Strip for Agricultural Purposes|
|Title in Arabic||تقدير الخواص الفيزيكوكيميائية للتربة السطحية لقطاع غزة من اجل الاغراض الزراعية|
Soil is the main resource upon which the 'natural environment' and agricultural production depend. The productivity of soil is dependent upon its physical and chemical properties. So, the study is very important as Gaza Strip mainly depends on agriculture to produce food. This study aims to determine physical and chemical properties of Gaza Strip top soil for sustainable agricultural land use. A total of 100 top soil samples were collected from Gaza Strip. The comprehensive soil sampling program commenced on October 2011 and lasted to November 2011. samples were subjected to physical analysis (texture of soil) and chemical analysis (pH, electric conductivity (EC), organic matter (OM), nitrogen as nitrate (NO3-N), extractable phosphorus (P), extractable and soluble potassium (K+), extractable and soluble calcium (Ca++), extractable and soluble magnesium (Mg++), extractable and soluble sodium (Na+), and calculated sodium adsorption ratio (SAR). Geographic information system (GIS) tool was used to develop maps for all investigated different parameters. The results showed that, about 50% of the soil texture type is sandy or sandy loam, and less than 15% of soil texture is clay or clay loam and more than 50% of Gaza soils should have low CEC values less than 12 meq/100g , and less than 15% of Gaza soils have CEC from 25 to 40 meq/100g. In addition the majority of top soils in Gazastrip are on the slightly and moderately alkaline and having a pH of 7.2 to 7.8, which have higher likelihood plant nutrient availability. The low to medium levels NO3 – N in Gaza which ranging between 5 to 15 mg/kg, can refer to low organic contents of Gaza soil and light soil type as most of Gaza strip soil has high sand content. The study results shows that Gaza soil is calcified as poor growth soil and this give explanation for intensive usage of chemical fertilizers in most Gaza area by farmers. The study gives recommendation for further researches considering the results of this study as a fundamental bases to evaluate the cultivation of different crops based on soil needs and evaluable water resources. Furthermore, new research should consider and analyses other related to plant micro nutrients and fertilizing approach and use of organic fertilizers to increase soil organic content and to improve aggregates and plant nutrient dynamics of Gaza Strip top soil.
|Publisher||الجامعة الإسلامية - غزة|
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