Ragheb, S.B.; A.H. Desoky and Salwa A.A. Hasanen( 2015). Evaluation Of Three Soybean Cultivars Under Organic Agricultural SystemsEgypt . J. of Appl. Sci., 30 (7) 2015
Abstract: Two field experiments were carried out at the experimental farm of Gemmeiza Agricultural Research Station, Gharbia Governorate located at (Latitude 30ᵒ 44′ 53.297″ N and Longitude 31ᵒ 7′ 50.739″ E), Egypt, during 2012 and 2013 summer seasons to study the response of three soybean cultivars (Giza 22, Giza 35 and Giza 111) to the bio-organic fertilization. Results revealed that cultivar effect was more important than the other factor on number of days to maturity in both seasons, Giza 35 cultivar was the earliest in maturity for treatment (3): compost + 15 kg N/fad. The tallest plants resulted from Giza 111 cultivar in the two seasons. Number of branches per plant was significantly affected by the studied treatments and cultivars in the second season. The highest values of number of pods and seeds per plant were due to the application of full mineral N fertilizer dose. Giza 111 cultivar produced the highest pod and seed number per plant in both seasons, also it produced the greatest seed yield per faddan due to the full N treatment in the two seasons. The highest content of crude protein was achieved from the application of full dose of N fertilizer followed by the use of compost + Inoculation with Rhizobia + Bacillus circulans + Bacillus megatherium + 15 Kg N/fad, with no significant differences. Results also revealed that, irrespective of soybean cultivars, the inoculated plants recorded more nodule number and dry weight and nitrogenase activity than those of non-inoculated ones.
Keywords: (Soybean, Cultivars, Organic agricultural ystem, Compost, Fertilizer.)
