RESPONSE OF FODDER SORGHUM VARIETIES TO NITROGEN AND SOWING TIME

摘要

Afield experiment was conducted during three consecutive years of 1996, 1997 and 1998 at Indian Grassland and Fodder Research Institute, Jhansi to find out the productivity of sorghum varieties (HC-171, JS-10 and HD-15) at low, medium and high fertility levels (40,80 and 120 kg N/ha) and early, medium and late planting conditions (beginning, mid and end of July). The highest green fodder (39 7 t/ha), dry matter (7 6 t/ha) and crude protein (510 kg/ha) yields were recorded from HD-15. Maximum forage and crude protein yields were received when crop was sown in the beginning of July. Significant increase in green fodder and dry matter yields were recorded when nitrogen level increased from 40 to 80 kg/ha. Further, increase in nitrogen levels could notincrease the yields significantly.