Papers

PERFORMANCE OF BORO RICE cv. BRRI dhan29 AS INFLUENCED BY METHODS OF WATER MANAGEMENT AND WEEDING (Pages : 28 - 33)

T.K. PRAMANIK, M.M. KARIM, M.A. ISLAM, S.Z. KHAN AND M.A. SALAM

The present experiment was conducted at farmers’ field during the period from January to June 2013 to study the yield performance of Boro rice cv. BRRI dhan29 as influenced by methods of water management and weeding. The experiment comprised two factors; factor A: water management viz. Farmers’ practice - (M1), AWD (Alternate wetting and drying) - (M2), SRI (System of rice intensification) - (M3) and Continuous flooding - (M4); Factor B: weed management viz. No weeding -(W0), Two Hand weedings at 20 and 40 DAT - (W1), Application of herbicide Pyrazosulfuron-ethyl (Manage 10WP) - (W2) and Application of herbicide Pyrazosulfuron-ethyl (Manage 10WP) + One hand weeding at 40 DAT - (W3). Nine weed species belonging to five families infested the experimental plots. The highest grain yield was observed in SRI method which was statistically identically with AWD and Continuous flooding methods. The highest number of effective tillers hill-1, highest number of grains panicle-1 and 1000-grain weight were observed in the plot with application of herbicide Pyrazosulfuron-ethyl, although the highest grain yield was obtained in treatment application of herbicide Pyrazosulfuron-ethyl + One hand weeding (HW) at 40 DAT. The highest grain yield was obtained from the interaction of AWD and application of herbicide Pyrazosulfuron-ethyl + one HW at 40 DAT which was statistically identical with AWD and application of herbicide Pyrazosulfuron-ethyl. From the results of the study it may be concluded that cultivation of Boro rice with AWD method and application of Pyrazosulfuran-ethyl herbicide + one hand weeding at 40 DAT appears as the best combination for obtaining higher yield of Boro rice in Boira village of Mymensingh district.Download


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