Amal W. Abou Elkhair, Hoda M. G. El-Shaboury and Abd ElAal, H. T.( 2014). Influence of Multifunctional Bio-Formulations on Productivity of Some Soybean VarietiesMiddle East Journal of Agriculture Research, 3(4): 1083-1089, 2014
ISSN 2077-4605
Abstract: Two field experiments were conducted during summer seasons of 2012 and 2013, at Seds Agric. Res Station in Beni Sewif Governorate to study the effect of some bio-fertilizers (PGPR) combined with mineral N, P and K fertilizer on the soybean cultivars (Giza 21, 35 and 111) productivity. Five microbial inoculants, Bradyrhizobium Japonicum strain 110 , Bacillus megatherium var phosphaticum (B6) , Bacillus subtilis , Serratia sp and Psedumonas flurorescence combined with 1/3 mineral N and 1/2 P fertilizers were experimented randomized complete block design with three replications was applied. Results showed that inoculated plant hosted the highest No. of nodules /plant for varieties Giza 35 and Giza 111, while cultivar Giza 21 was the inferior. The highest increases in nodules dry weights were recorded in case of inoculation with biofertilizers in all treatments specially the mixture of Bradyrhizobium Japonicum strain 110 + Bacillus megatherium + Pseudomonas fluorescence + Bacillus subtilis + Serratia sp. + 1/3 N +1/2 P + full K. The effect of all treatments studies were significant affected increase on CO2 for Giza 35, Giza 21 and Giza111. On the other hand, the effect of application bio-fertilizers combined with mineral fertilizers on height plant (cm) was significant for variety Giza 35, while the Giza 21 and Giza 111 no significant effect. Flowering and maturity were no significantly influenced by the main effect of bio-fertilization combined with inorganic fertilizers on soybean varieties. The application of bio-fertilizer and inorganic fertilizer led to significantly increase of No.
seeds /plant for all soybean varieties, while the weight of seeds yield (Mg/kg) was significant increase for Giza 35 and Giza 21. Concerning that the N content (mg/plant) and P concentration (%) in seeds of soybean inoculated with bio-fertilizers combined with mineral fertilization were no significant for Giza 35 and Giza 21, while the K concentration in seeds of soybean variety (Giz 21, 111 and 35) was significant. The effect of biofertilizers combined with mineral fertilizers on oil content (%) was no significant affected for Giza 21, 35 and 111, while the oil yield (kg /fed) was significant .respectively. From the above results could be recommend using bio-fertilizers and reduce the mineral fertilizers and cultivation soybean Giza 111 and 35 under the same
conditions in the study.
Keywords: (Bio-fertilizers (PGPR), Soybean cultivars quality, soybean productivity, macronutrients contents in seeds.)
