6-2-4-Islam et al


Authors: K. N. Islam*, S. Hasna, G. N. Hasan, M. M. Islam and F. Ahmed 
Corresponding author, E-mail: kbd_nazrul@yahoo.com


The experiment was conducted at farmers’ fields of Patuakhali sadar, Borguna sadar, and Barisal sadar, to reduce fertilizer requirement in succeeding T. aman rice and to improve soil health through incorporation of mungbean/cowpea biomass to soil in Mungbean/Cowpea-Fallow-T.aman cropping pattern during 2012-13 and 2013-14. Three treatments were, T1=No biomass incorporation+Recommended fertilizer (RF) for T.aman, T2=Mungbean biomass incorporation + 50% of RF for T.aman, T3=Cowpea biomass incorporation+50% of RF for T.aman. Results revealed that comparatively higher yield of T. aman was observed in the treatments T2 and T3 as compared to T1. During the growing period high temperature encouraged vegetative growth of mungbean and cowpea. As a result, pod formation was high. The incorporation of mungbean/cowpea biomass along with chemical fertilizers produced identical grain yields of T.aman rice with 50% of recommended fertilizers. The incorporation treatments had positive effect on succeeding T.aman rice. Considering the whole cropping system the productivity was higher. The findings of the research indicate that incorporation of biomass + 50% of recommended fertilizers application could increase yields substantially as compared to no biomass incorporation with 100% of recommended fertilizers in T.aman rice. Besides, the biomass incorporation helped maintain soil fertility, preventing further soil degradation.

Keywords: Mungbean and cowpea biomass incorporation and T. aman yield.

Download PDF: Click here

data:newerPageTitle data:olderPageTitle data:homeMsg