Quantifying the BNI-residual effect from B. Humidicola on subsequent annual crops

Published on 17 July 2012

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Timeline

Start Date: 2 May 2011 | End Date: 29 February 2012

Overview

Our ongoing and past findings indicate substantial reduction in the soil nitrification potential from cultivation of B. humdicola due to accumulation of BNIs in soil systems. Other research groups working on Hyperrhenia diplandra pasture grasses in West Africa noticed a very stable BNI effect (but not properly quantified yet) on nitrification potential in soils. Thus, the aim of this proposed field study is to characterize the residual-BNI function from B. humidicola (BH) for the stability and intensity of BNI effect on soil nitrification potential, nitrogen-recovery and N-use efficiency in maize and soybean using the BNI-residual effect from a long-term cultivation (> 10 year pasture) of BH pasture.

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