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# عنوان البحث المشارك في البحث سنة البحث
641 Availability of P in sandy calcareous soils: 1. Kinetic studies أ.د.محمد على الدسوقى زيدان 1993
642 Availability of P in sandy calcareous soils: II. Effects of organic matter and added P أ.د.محمد على الدسوقى زيدان 1993
643 Availability of P to alfalfeer and ryegrass in sandy calcareous soils as affected by adding organic manure arnile sediments أ.د.حسانين جمعة حسانين الصعيدى 1993
644 Use of nitrogen fixing bacteria and foliar fertilization to increase yields of grain sorghum and maize in Upper Egypt أ.د.فريدة حسن على بدوى 1992
645 Comparative studies on productivity and nodulation of soybean by slow- and fast-growing rhizobia أ.د.صلاح محمد محمود محمد أحمد حمادى 1992
646 Effect of planting date on nodulation, plant growth and yield of soybean أ.د.حسانين جمعة حسانين الصعيدى 1992
647 Analysis of heat, water and solute transport in soil materials under different compaction conditions أ.د.محمد على الدسوقى زيدان 1992
648 Effect of planting date on nodulation, plant growth and yield of soybean أ.د.محمود محمد الدسوقى محمود 1992
649 Utilization of waterhyacinth as a soil amendment: Growth and mineral content of wheat أ.د.محمد على الدسوقى زيدان 1992
650 The Effect of salinity level of the soil on Ammonia Nitrogen losses from surface applied Urea أ.د.محسن عبدالمنعم جامع على 1992