COMPARATIVE EFFECT OF NPK BRIQUETTES AND VERMICOMPOST ON THE YIELD AND YIELD CONTRIBUTING CHARACTERS OF AROMATIC RICE

Abstract

The experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka from November 2018 to May 2019. The experiment consisted single factor: seven fertilizer management practice with NPK briquettes and vermicompost viz. T 1 = No fertilizer (control), T 2 = Recommended fertilizers, T 3 = NPK briquettes as recommended, T 4 = 75% NPK as NPK briquettes + 25% NPK from vermicompost, T 5 = 50% NPK as NPK briquettes + 50% NPK from vermicompost, T 6 = 25% NPK as NPK briquettes + 75% NPK from vermicompost, T 7 = 100% Vermicompost (20 ton/ha). The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Different fertilizer management practices influenced significantly on all of the parameters. Among the fertilizer management practices T 4 (75% NPK as NPK briquettes + 25% NPK from vermicompost) performed best in case of all of the vegetative (Plant height,number of tillers, number of effective and ineffective tillers and panicle length) and reproductive characteristics (days to panicle initiation, no of grain per panicle, no of filled and unfilled grain per panicle and1000 grain weight) and lowest result was observed from T 1 . Maximum grain yield as well as straw yield was obtained from T 4 and 7.1 t ha -1 ). Harvest Index was the maximum for treatment T4 (48.9).