Effect of Nitrogen Rates and Time o Application on Some Morphological Characters and Yield of Grain Sorghum (Sorghum bicolor L. Moench) PDF

Keywords

crop season, sorghum, nitrogen

Abstract

A field experiment was conducted for two consecutive years during the crop season of 1980 and 1981 to investigate into the response of some morphological characters and grain yield of five rates of N and three times of application. Splitting relatively high nitrogen rates into two applications widely separated in time had no effect on plant height but had a significant effect on the number of days from sowing to 50% flowering and grain yield. High yields of irrigated sorghum can be obtained if N fertilizer (145-160 kg/ha) was split into two halves and applied 21 days and 45 days from sowing the crop