EFFECT OF FERTILIZER DOSES ON MORPHOLOGICAL AND YIELD PERFORMANCE OF MUSTARD VARIETIES

Abstract

The experiment was carried out at Sher-e-Bangla Agricultural University Research Farm, Dhaka during Rabi season, December 2020 to February 2021 to find out the effect of fertilizer doses on morphological and yield performance of mustard varieties. The experiment comprised of two factors - the treatment consisted of four different levels of fertilizer application viz. F 0 = Control (no fertilization), F 1 = 85% fertilization compared to recommended fertilization (204 kg ha -1 Urea, 136 kg ha xi -1 TSP, 68 kg ha MoP and 119 kg ha -1 Gypsum), F 2 = BARC recommended fertilizer dose (100%) (240 kg ha Urea, 160 kg ha -1 TSP, 80 kg ha -1 MoP and 140 kg ha -1 Gypsum) and F 3 = 115% fertilization compared to recommended fertilization (276 kg ha -1 Urea, 184 kg ha -1

MoP and 161 kg ha -1 Gypsum) and three different varieties viz. V 1 -1 -1 TSP, 92 kg ha = BARI Sarisha-9, V 2

= BARI Sarisha-14 and V 3 = BARI Sarisha-15. The experiment consisted of two factor and laid out in Randomized Complete Block Design (RCBD) with three replications. The collected data were statistically analyzed and a significant variation among the treatments was found in respect of majority of the observed parameters. The highest plant population (66.33 m -2 ) was recorded from F 3 treatment. The tallest plant was recorded from 115% fertilizer application (F 3 ). Significantly maximum branches plant -1 , dry matter weight plant -1 , siliqua plant -1 and seed siliqua -1 were recorded from F 2 and F 3 treatment with 100% and 115% fertilization, respectively. The maximum thousand seed weight (2.98 g) was recorded from V 3 (BARI Sarisha-15). The highest plant population (77.25 m ) was observed in case of BARI Sarisha-15. The tallest plant of mustard was found in case of with BARI Sarisha-15. The maximum branches plant -1 , dry matter weight plant , siliqua plant -1 and seed siliqua -1 were obtained from BARI Sarisha-14 (V 2 ). The highest yield of seed (0.95 t ha -1 ) was obtained from BARI Sarisha-14. The combinations of different fertilizer doses and varieties had significant effect on almost all the parameters. The higher yield of seed was obtained from F 2 V 2 (1.15 t ha -1 ), F 2 V 3 (1.08 t ha

(1.16 t ha -1 ) treatment combination. The highest biological yield (4.02 t ha ) was obtained from F 2 V 3 and the highest harvest index was obtained from F 2 V 2 -1 -1 -1 -2 ) and F 3 (30.75%) and F 3

(29.37%) treatment combination. Considering the results, it can be concluded that both the variety BARI Sarisha-14 and BARI Sarisha-15 provided better yield than the other variety and F 2 and F 3 fertilizer dose provided better yield for most of the mustard varieties. Bari Sharisha-14 (V 2 ) with 100% (F 2 ) fertilization resulted comparatively better morphological, physiological and yield characteristics.