EFFECT OF NITROGEN AND WEED MANAGEMENTS ON GROWFH AND YIELD OF MUNGBEAN

Abstract

An experiment was conducted at the experimental field of the Department of Agronomy. Sher-c-Bangla Agricultural University. Dhaka to evaluate the effect of nitrogen and weed managements on mungbean (Vigna rac/iala L) during the period from March 2007 to June 2007. Different managements of nitrogen (0. 20 kg N hi' at vegetative, 20 kg N hi' at vegetative and flowering) and weeding (No weeding, one weeding at vegetative, two weeding at vegetative and flowering stage) were integrated. Results showed that application of 20 kg N hi' as basal + 20 kg N ha 4 with one weeding at vegetative stage showed significantly higher values of all growth parameters like number of leaflets (24.27 at 20 DAS and 24.27 at 40 DAS), leaf area (23.27cm2 at 20 DAS and 102.17 cm 2 at 40 DAS), leaf dry weight (0.30, 6.99 and 10.61gm at 10, 17 and 24, DAS respectively) and shoot dry weight (2.76 and 4.69 gm at 17 and 24 DAS. respectively). This treatment also produced significantly more number of branches (1.67), pods plant 1 (17.83) and seed yield hi'(1982.05 kg). Mungbean yield was attributed to shoot dry weight, pods plani' and I 000-seedweight and shoot dry weight.