STUDIES OF NITROGEN AND POULTRY MANURE ON THE GROWTH AND YIELD OF BORO RICE (BRRI DHAN28).

Agriculture

An experiment was conducted at the research field in Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, during the boro season of 2017 to evaluate the combine effect of poultry manure (PM) and urea-N on the growth and yield of BRRI dhan28 (Oryza sativa L.). The experiment was laid out in a Randomized Complete Block Design (RCBD) with six treatments and four replications. Total amount of P, K and S fertilizers were applied as basal dose @ 90, 120 and 45 kg/ha, respectively during final land preparation but N from urea (300 kg/ha) was applied as per treatments in there equal splits. Application of PM and urea-N significantly influenced the growth and yield contributing characters of BRRI dhan28 with the savings of urea. The results of the study also indicated that most of the yield and yield contributing characters such as number of effectives tillers per hill (16.73), panicle length (23.98 cm), 1000 grains weight (26.04 gm), grain yield (5.40 t/ha) and straw yield (6.44 t/ha) were the maximum in treatment T3 (urea-N @ 75 kg/ha + PM @ 6 t/ha). The overall results indicate that application of N fertilizer in T3 as urea @ 75 kg/ha in combination with 6 t/ha PM can reduce the use of N fertilizer at a substantial level which ultimately reduces the cost of production and in terms of yield and nutrient content in soil in this region. The findings of the study suggest that integrated use of PM and N fertilizer is an important for sustainable production of rice.

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