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This study was conducted at Ismailia Agric. Res. Station, ARC during two consecutive seasons. Wheat (Triticum aestivum L., CV. Giza 168) and peanut (Arachis hypogaea L., CV. Giza 6) were grown in the winter and summer seasons 2015,2016 in a sandy soil under sprinkler irrigation system. The purpose of this study is to evaluate the effect of processed organic fertilizer with some methods and additions to raise its efficiency which reflected on physical and chemical properties of sandy soil and crop productivity. Three forms of organic wastes (farmyard manure, compost and green waste biochar) were used.Obtained results revealed that, decreases in pH values in soil of processed farm yard manure, compost and biochar from waste plant compared to control (no added amendments).On the other hand, EC and organic matter along with nutrients availability (N,P and K) increased with applied soil amendments especially in FYM4 and biochar P2 treatments. Moreover, results indicated that value of bulk density (BD) decreased, but both total porosity (TP) and available water (AW) increased by application of soil amendments treated compared to control treatment at both studied seasons. Finally, FYM4 and biochar P2 treatments had recorded the highest values of macronutrients total content along with yield components of wheat and peanut crops as compared to other treatments.From the present study, it could be obtained maximum beneficial from farmyard manure, compost and green waste biochar treated by some ways and addition of materials which lead to the best integrated product. This actually, may be helpful to improve soil chemical and physical properties and reflected that on soil fertility along with plant productivity.

Maximum Utilization of Organic Wastes as Soil Amendments and its Effect on Physical and Chemical Properties of Sandy Soil