Author(s): Adeyeye AS, Togun AO, Olaniyan AB and Akanbi WB
The study assessed the response of three soybean varieties: (TGX 1740 - 2F, TGX 1842 - IE, and TGX 1448- 2E) to three fertilizer treatments (4 t/ha compost, 30 kgN/ha urea, 2 t/ha compost+30 kgN/ha urea and a control) with or without Rhizobium Inoculation using strain R.25B+2180A. The experiment was a randomized complete block design with three replications. Data collected on vegetative, reproductive and grain yield parameters were subjected to analysis of variance ANOVA at 5% probability level. Fertilizer effects were significant on all the parameters assessed. In this study, soybean grain yield varies from 0.2 t/ha in plants nourished with 30 kgN/ha to 0.96 t/ha in plants that received 4 t/ha compost. Inoculation of soybean seed with rhizobium significantly improved the grain yield of soybean. Inoculated plants produced grain yield that is 35% higher than non-inoculated ones. The interactive effect of fertilizer types and inoculation was not significant on soybean grain yield and yield parameters. It was concluded that the use of 4 t/ha compost in combination with appropriate rhizobium strain could be a good agronomic practice for the production of high quality grain in soybean.
