RESPONSE OF MUSTARD VARITIES TO DIFFERENT NITROGEN MANAGEMENT

Abstract

The experiment was carried out at the research field of Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka during the period from November 6, 2009 to February 10, 2010 to asses the comparative advantages of using urea super granule (USG) over prilled urea and also the effect of different management of nitrogenous fertilizer on growth, yield and yield attributing characters of mustard. Four nitrogen Treatment (T = Normal urea, T 2 = USG as basal, T 3 = USG at 15 DAS and T 4 1 = USG at 25 DAS) and three mustard varieties (BARI Sarisha-11, BARI Sarisha-13 and BARI Sarisha-14) were used as treatment variables in the experiment. The experiment was laid out in a split plot design with 3 replications. Results indicate that the plant growth characters, yield and yield attributes of the cultivars were significantly influenced by USG application. Plant height, number of branches plant , number of leaves plant -1 , leaf area plant -1 , total dry matter, number of siliqua plant -1 , siliqua length, number of seed siliqua-1, 1000-seed weight, and seed yield (t ha -1 ) were found highest when USG was applied as basal dose and all the characters showed lowest value when USG was applied at 25 DAS. Highest number of siliqua per plant (654.7) and yield (2.06 t ha -1 ) was obtained in BARI Sarisha 11 when USG was used as basal dose which reduce 40% use off prilled and 20% of total cost in mustard cultivation.