A Pot Experiment to Test Effectiveness of The Surface-Placement of Sesbania Debris Prior to Incorporation into The Submerged Soil

Abstract

The surface-placement of sesbania debris prior to incorporation into the submerged soil was previously proposed as a possible technique to avoid the adverse effect of application of sesbania debris on rice seedlings by suppressing accumulation of organic acids in the soil. Effectiveness of this technique was examined by a pot experiment in a green house. The surface-placed of sesbania debris smelt very bed for few days, probably because accumulation of butyric acid in the debris. When the bad smell disappeared and the sesbania debris became dark and soft, incorporation of the surface-placed sesbania debris ded not show the adverse effect on the rice seedlings. In other words, the time suitable for incorporating the surface-placed sesbania debris could be easily determined without using any analytical tools.