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Abstract
5 – The pot experiment was carried out under to greenhouse conditions at the Faculty of Agriculture Zagazig University; to evaluate the use of organic manure amendments for sandy soil of EL-Khatara experimental farm El Sharkia govern orate
Tetra factorial computer model Moussa and Youssef (1992) was applied using farmyard manure, chicken manure, town refuses and sewage sludge,
The investigated materials were designated as X1, X2, X3, and X4 respectivelye .