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# عنوان البحث المشارك في البحث سنة البحث
631 Availability of P in sandy calcareous soils: I. Kinetic studies أ.د.محمد على الدسوقى زيدان 1993
632 Effect of soil conditioners and irrigation Regime on the growth and nutrient uptake by Alfalfa plants أ.د.محمد فتحى غنيم محمد 1993
633 The capacity of layey soils to supply P and K as affeded by adding organic manure أ.د.حسانين جمعة حسانين الصعيدى 1993
634 Status of free iron oxides in some surface soil samples in upper Egypt أ.د.محمد على الدسوقى زيدان 1993
635 Availability of P in sandy calcareous soils: II. Effects of organic matter and added P أ.د.حسين محمد على راغب 1993
636 Characteristics and productivity of a sandy soil as influenced by soil conditioners in أ.د.محمد فتحى غنيم محمد 1993
637 The capacity of layey soils to supply P and K as affeded by adding organic manure أ.د.محمد حسن محمد نفادى 1993
638 Availability of P in sandy calcareous soils: 1. Kinetic studies أ.د.محمد على الدسوقى زيدان 1993
639 Availability of P in sandy calcareous soils: II. Effects of organic matter and added P أ.د.محمد على الدسوقى زيدان 1993
640 Effect of K-fertilization on the production of wheat grown in sandy soils under sprinkler irrigation أ.د.محمد فتحى غنيم محمد 1993