Papers

PERFORMANCE OF WHEAT POTENTIALITY INFLUENCED BY WATER RETAINER AND NITROGEN FERTILIZATION (Pages : 1 - 11)

M.M.R. PARVEJ, S.M.A. HOSSAIN, M.S.U. BHUIYA AND M.H.A. AMIN

A modern wheat variety ‘BARI gam-21’ (Shatabdi) was grown with four rates of Flobond, a chemical water retainer, viz., 35 kg, 70 kg, 140 kg, and 280 kg ha-1 under four levels of nitrogen such as 0 kg, 50 kg, 100 kg and 150 kg ha-1 at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during the Rabi season November 2009 to March 2010. The experiment was laid out in a split-plot design with three replications. Rate of Flobond/irrigation level and nitrogen fertilization and their interaction exerted significant influence on yield, yield contributing and other crop characters. It was observed that the highest grain yield (3.58 t ha-1) was obtained with 280 kg Flobond ha-1. It was the outcome of the highest number of effective tillers plant-1 and the highest number of grains spike-1. On the other hand, the highest straw yield (5.46 t ha-1) was obtained with two irrigations. Grain yield showed an increasing trend to 280 kg Flobond ha-1. But straw yield increased to 280 kg Flobond ha-1 and thereafter decreased. The highest grain yield (3.56 t ha-1) was obtained with 100 kg N ha-1 and the highest straw yield (5.37 t ha-1) was obtained from 100 kg N ha-1. Interaction of rate of Flobond as chemical water retainer and level of nitrogen had a significant effect on yield, yield contributing characters except for 1000-grain weight. The highest grain yield (4.82 t ha-1) was obtained with 280 kg Flobond ha-1 as a chemical water retainer and 100 kg N ha-1. The lowest one (1.53 t ha-1) was obtained from 35 kg Flobond ha-1 and no nitrogen. On the other hand, the highest straw yield (6.68 t ha-1) was obtained with 100kg N ha-1 under two irrigation and the lowest one (3.42 t ha-1) was found in 35 kg Flobond ha-1 with no nitrogen fertilization.Download


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