EFFECT OF POULTRY MANURE AND WEEDING ON GROWTH AND YIELD OF TRANSPLANTED AMAN RICE

Abstract

An experiment was carried out at the Agronomy Research Field, of Sher-e- Bangla Agricultural University (SAU), Dhaka-during the period from July to November 2018. The experiment was consisted of two different factors viz. factor A: Poultry manure (4 levels); P = Recommended fertilizer (Urea, TSP MoP and Gypsum@ 150,53,82 and 60 kgha -1 0 respectively) without poultry manure; P 1 = Recommended fertilizer with poultry manure 2 ton ha -1 ; P = 25% reduction of recommended fertilizer with poultry manure 2 ton ha -1 and P 3 2 = 50% reduction of recommended fertilizer with poultry manure 2 ton ha -1 and factor B: Weeding ( 3 Levels ); W = No weeding; W 1 = Weeding at 20 DAT( before applying 2 nd installment of urea & rest ½ M P ) and W 2 = Weeding at 20DAT (before applying 2 nd installment of urea & rest half of M P) and at 40 DAT. The experiment was laid out in split-plot design with three replications. The data on plant growth characters, yield contributing characters and harvest index were analyzed using analytical computer software program statistix-10. The mean differences among the treatments were compared by least significant difference test (L.S.D) at 5% level of significance. Experimental results revealed that recommended fertilizer with poultry manure 2 ton ha ) showed the best performance in terms of higher yield and yield contributing characters viz; number of effective tillers hill -1 (11.62) , panicle length (23.51 cm), filled grains panicle (104.42), 1000–seed weight (26.21g), seed weight hill -1 (26.70g) , grain yield (5.36 t ha ), straw yield (7.93 t ha -1 ); where as the lowest results were recorded in recommended fertilizer (Urea, TSP, and MoP and gypsum @ 150, 53, 82, and 60 kg ha -1 respectively) without poultry manure (P 0 ). Weeding at 20DAT (before 2 nd installment of urea & rest half of M P) and at 40 DAT (W 2 ) showed higher results on growth and yield attributes over no weeding (W 0 ). The results suggest that recommended fertilizer with poultry manure 2 ton ha -1 (P ) and weeding at 20 DAT (before 2 nd installment of urea & rest half of M 0 P) and at 40 DAT (W 1 ) can be practiced for transplanted aman rice cultivation. Among the interactions P 1 W demonstrated as the best combination of treatments for better growth, yield and yield contributing characters towards increasing grain yield of transplanted aman rice in Bangladesh.