Utilização de diferentes fontes e doses de adubo orgânico no cultivo do gergelim ( Sesamum indicum L.) irrigado e sua influência na área foliar.

Abstract

This work had as objective to investigate the development of the foliar area of the irrigated sesame (Sesamum indicum L.) in its initial growth until the 70 days after the sowing with the application of four sources of organic manuring, each one applied in four different doses of nitrogen. The used organic manuring had been pie of cotton and of castor oil plant, bovine manuring and biosolid and the four applied doses were 20, 40, 60 and 80 kg ha-1 of nitrogen. The experimental design was randomized blocks in factorial scheme 4 x 4, with 4 repetitions. The statistical analysis showed that among the applied manurings, the ones that had produced the best averages for foliar area were bovine manuring and the biosolid, with prominence for the second one that had performance about 7% greater than the first one. The doses that had supplied the greatest averages for the foliar area were 43.4 kg ha-1 for bovine manuring and 49.62 kg ha-1 for the biosolid.