The relation between some of soybean genotypes and plant densities under the different levels of phosphorus fertilization [electronic resource].

Includes reference.

Two field experiments were conducted in Gemmiza Research Station, Gharbia Governorate during 200S and 2006 seasons, to study the effect of three levels of phosphorus fertilizer treatments [(15 and 30 kg P₂O₅/fad.),as soil application and phosphoric acid as foliar spray with recommended doseJ and three plant densities (15, 20, and 2S plant /m of liner ridge) on some growth parameters, yield and yield components of two promising genotypes (Hagen 30 and Hagin32) and two soybean varieties (Giza 111 and Giza 22). The results indicated that 30kg P₂O₅ /fed. was the optimum phosphorus rate, that achieved the best data for the most characters under study. Directly proportion was observed between plant densities and the most tested characters with the exception of seed yield/plant and number of pods/plant. Hagen 30 genotype and Giza 111 located first and second order in the most cases. First and second order interactions had significant impact on all these studied characters as well as seed protein and oil percentage.

Summary in arabic.

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