EFFECTS OF VERMICOM POST AND INORGANIC FERTILIZERS ON GROWTH, YIELD AND OIL CONTENT OF MUSTARD (SAL sharisha-1 & 3)

Abstract

A field experiment was conducted at Sher-e-Bangla Agricultural University Farm, Dhaka during the Rabi season of 2010-2011 to study the effects of vermicompost and inorganic fertilizers on the growth, yield, and oil content of mustard. Two varieties such as VarietyISAU Sharisha-1 & Variety-2SAU Sharisha-3 and 3 levels of each of vermicomposts viz. F0, F, F2 =(0, 1.5, 2.5) t ha" and inorganic fertilizers (N, F, K, 5, Zn, B)viz. F3 F4 F5 = (40-80-120,15-3045,2040-60,10-20-30,I.2-2.4-3.6,I-2-3) kg ha" were used. The results demonstrated that medium doses (80-3040-20-2.4-2) kg/ha of inorganic fertilizers increased seed yield of mustard significantly. Considering the varietal effect the highest seed yield ((.64 t ha") was found in variety-I and the lowest seed yield (1,53 (hi') was observed in variety-2. The highest number of siliquae (165.33) was obtained from variety-I and on the other hand the lowest number of siliquae (131.12) was obtained from variety-2. Variety-2 showed the highest oil content (44.02%) and variety-I gave the lowest oil content (43.02%). Effects of fertilizer showed that the highest seed yield (2.2 ha") was found from medium fertilizer (80-3040-20-2.4-2) kg/ha and the lowest seed yield (1.07 t ha") was obtained from control treatment (F0). The highest number of siliquae (180.8) was obtained from high fertilizer (120-45-60-30-3.6-3) kg/ha and on the other hand the lowest number of siliquae (124.55) was obtained from low fertilizer (4015-20-10-1.2-1) kg/ha. Medium fertilizers (80-30-40-20-2.4-2) kg/ha showed highest oil content (44.5%) and low fertilizers (40-15-20-10-I .2-1) kg/ha give lowest oil content (42.65%). The interaction effect showed that maximum significant seed yield (2.4 It ha") was obtained from variety-I by the application of medium fertilizer (80-3040-20-2.4-2) kg/ha but percentage oil content (45.4%) was maximum at Variety-2 by the application of medium fertilizer (80-3040-20-2.4-2) kg/ha. The highest number of siliquae (196.7) was obtained from the high fertilizer doses (12045-60-30-3.6-3) kg/ha. The oil content was not significantly influenced by the difference of treatments.