SYSTEMS OF MUSTARD INTENSIFICATION AS INFLUENCED BY VARIETY AND SULPHUR

Abstract

A field experiment was conducted at Sher-e-Bangla Agricultural University Farm SAU, Dhaka to study the systems of mustard intensification as influenced by variety and sulphur, during the period from October 2020 to February 2021 in Rabi season. The experiment was consisted of two factors and followed by randomized complete block design with three replications. Factor A: Mustard varieties (3) viz; V 1 = BARI Sarisha9, V 2 = BARI Sarisha-14 and V 3 = BARI Sarisha-15, and Factor B: Different doses of sulphur (4) viz; S 0 = Control, S 1 = 25 % less than recommended dose of sulphur fertilizer (RDS), S 2 = RDS and S 3 = 25 % more than recommended dose of sulphur fertilizer (RDS). Experimental result revealed that in case of different mustard varieties the lowest seed yield (1.36 t ha -1 ) was obtained from V 1 treatment (BARI Sarisha-9). Whereas cultivating of BARI Sarisha-15 (V 3 ) variety gave the highest number of siliqua plant -1 (107.11), length of siliqua (10.08 cm), number of seeds siliqua (31.40), 1000seed

weight (3.49 g), seed yield (1.99 t ha -1 ), stover yield (4.1399 t ha ), biological yield (6.12 t ha -1 ) and harvest index (32.18 %). In case of different doses of sulphur application the seed yield ranges between (1.27 -2.11 tha -1 ). The highest seed yield (2.11 t ha -1 ) was recorded in S 3 (25 % more than recommended dose of sulphur fertilizer) treatment which was due to enhanced yield attributes like siliqua plant

(99.11), length of siliqua (9.52 cm), number of seeds siliqua -1 (34.21) and 1000-seed weight (3.52 g).In case of combination treatment, cultivation of BARI Sarisha-15 (V 3 ) along with 25 % more than recommended dose of sulphur fertilizer (S 3 ) affected plant growth and yield-contributing characteristics, leading to the maximum seed yield (2.38 t ha -1 ) than compared to other treatment combination. However, V 2 (2.37 t ha -1 ) and V 3 S 3 (2.38 t ha -1 S 3 -1 -1 (2.24 t ha ) showed statistically similar seed yield ha . As a result, it was proposed that cultivating BARI Sarisha-15 in conjunction with the recommended dose of sulphur fertilizer (V 3 S 2 ) would help to influence plant growth and increase its ability to enhance better mustard yield production using the SMI technique.