EFFECT OF PHOSPHORUS AND SULPHUR ON THE GROWTH AND YIELD OF MUSTARD

Abstract

A field experiment was conducted at the Sher-e-Bangla Agricultural University Farm, Dhaka 1207 during November 2018 to February 2019 to study the effect of phosphorus and sulphur on the growth and yield of mustard (Bari sarisa-14). The experimental soil was clay loam in texture having pH of 5.7. The experiment included three levels of phosphorus viz. 0, 28, and 36 kg P ha and three levels of sulphur viz., 0, 16, and 20 kg S ha -1 . The experiment was laid out in a Randomized Complete Block Design with three replications. Phosphorus showed significant effect on yield and yield attributes of mustard. Application of phosphorus (P 3 @36 kg ha -1 ) produced the highest seed yield, plant height, number of primary branches plant -1 ,

number of siliqua plant and 1000-seed weight. Sulphur fertilizer also had significant effect on yield and yield attributes of mustard. Application of sulphur @ 20 kg ha produced the highest number of primary branches plant -1 , number of siliqua plant but in all the cases relatively, the lower response was found from the control treatment. Phosphorus in combination with sulphur showed significant effect on yield and yield attributes of mustard. Plant height, no. of siliqua plant -1 , siliqua length, no. of seed siliqua -1 , weight of 1000 seed (g), seed yield was found the highest in the treatment combination P 3 S 3 . The addition of P and S not only increased the yield but also protect the soil from total exhaustion of nutrients.