PERFORMANCE OF VERMICOMPOST AND INORGANIC FERTILIZERS ON GROWTH, YIELD AND OIL CONTENT OF NUISTARD ('Brassica campestris var. SAU sharisha-1&4)

Abstract

A field experiment was earned out at Sher-e-Bangla Agricultural University Farm, Dhaka during the rabi season of 2010-2011 to evaluate the perfbrmancc of verniicompost and inorganic fertilizers on growth, yield, and oil content of mustard. The treatments used two varieties such as variety-ISAU sharisha-1 & variety2'SAU sharisha-4 and 3 levels of each of vermicomposts viz. F0, 1:1 F2 (0, 1.5, 2.5)t ha4 and inorganic fertilizers (N, P. K, S. Zn, B)viz. F3 1.4 F5 (40-80-120.15-3045,20-40-60,10-20-30.1.2-2.4-3.6,1-2-3) kg ha4.The results demonstrated that high vermicompost (2.5tiha) and medium doses of inorganic fertilizers (80-30-40-20-2.4-2 kgTha) increased seed yield of mustard significantly. Considering the varietals effect the highest seed yield (2.0451 ha') was found in variety-i and lowest seed yield (1.78 hi') was observed in variety-2. The highest number of siliqua (180.617) was obtained from variety-i and on the other hand the lowest number of siliqua (165.792) was obtained from variety-2. Variety-2 showed highest oil content (44.12%) and variety-I give the lowest oil content (43.1%). Effects of fertilizer showed that the highest seed yield (2.314 t haj was found from medium fertilizer (80-30-40-20-2.4-2 kg/ha) and the lowest seed yield (1.63 t had) was obtained from low vermicompost treatment (1.5 t/ha). The highest number of siliqua (189.8) was obtained from medium fertilizer (80-30-40-20-24-2 kg/ba) and on the other hand the lowest number of siliqua (133.5) was obtained from (0 Viva) control treatment. The treatment mediun, fertilizer (80-30-40-20-2.4-2 kg/ha) showed the highest oil content (44.4%) and control treatment give the lowest oil content (43.05%).The interaction effect showed that maximum significant seed yield (2.740t hi1 ) was obtained from variety-I by the application of medium fertilizer (80-30-40-20-2.4-2 kg/ha) but the percentage of oil content (45.2%) was maximum at Variety-2 by the application of medium fertilizer (80-30-40-20-2.4-2 kg/ha). Oil percentage was greater in SAU sharisha-4(hlaek) than that of SAU sharisha-l(white).Thc oil content was not significantly influenced by the difference of treatments.