Economic Study of Nitrogenous Fertilizer Use for Crop Production at El - Behira Governorate دراسة اقتصادیة لاستخدام الأسمدة الآزوتیة للحاصلات الزراعیة بمحافظة البحیرة

Journal of Agricultural Economics and Social Sciences
doi 10.21608/jaess.2012.45104
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Egypts Presidential Specialized Council for Education and Scientific Research