INFLUENCE OF NITROGEN AND SULPHUR LEVEL WITH POPULATION DENSITY ON GROWTH AND YIELD OF MUSTARD (SAU Sharisha-3)

Abstract

The experiment was conducted at the research field of Sher-e-Bangla Agricultural University farm, Dhaka, Bangladesh during the period from November 2015 to February 2016 to determine the effect of nitrogen and sulphur levels with different population densities on growth and yield of mustard (SAU Sharisha-3). The experiment consists of two factors. Factor A: nitrogen + sulphur (5 levels) i.e. F 0 = Control, F = (70 kg nitrogen + 15 kg sulphur) ha -1 , F 2 = (90 kg nitrogen + 20 kg sulphur) ha vi

1 -1 , F = (110 kg nitrogen + 25 kg sulphur) ha -1 , F 4 = (130 kg nitrogen + 30 kg sulphur) ha 3 ; Factor B: Population density (4 levels) i.e. P 1 = 200000 plants ha -1 -1 (20 plants m = 400000 plants ha -1 (40 plants m -2 ), P 3 = 600000 plants ha -1 (60 plants m = 800000 plants ha -1 (80 plants m -2 ) were in this experiment. Significant variation was found in all parameters at different growth stages of mustard (SAU Sarisha-3). Data showed that F gave the highest no. of branches plant 3 P 4 gave the tallest plant (90.73 cm) but F -1 (8.20).Maximum value of 1000 seed weight (3.80 g), siliqua plant -1 (137.61) and seeds siliqua -1 (29.30) were found from F 3 P 1 . Again the maximum stover yield (4055 kg ha -1 ) and biological yield (6093 kg ha -1 ) were found from F 3 P 4 . Considering individual effect, F (130 kg nitrogen + 30 kg sulphur ha -1 )

gave the highest seed yield (1862.5 kg ha ), biological yield (5458.4 kg ha -1 ), harvest index (34%) and P 3 -2 4 -2 ), P ), P (60 plants m ) gave the maximum seed yield (1733.9 kg ha -1 ) and harvest index (36.15%). But the maximum seed yield (2081 kg ha -1 ) was found with the treatment combination of F

3 P 3