SHARMIN, M. S. ALAM*, M. SALAHIN and A. HOQUE
Department of Agronomy and Agricultural Extension, University of Rajshahi, Rajshahi, Bangladesh. *Corresponding author’s Email: sami@ru.ac.bd
ABSTRACT
The experiment was conducted at the Agronomy Field Laboratory, Department of Agronomy and Agricultural Extension, University of Rajshahi, Rajshahi, Bangladesh during November 2010 to March 2011 to study the effect of irrigation and planting method on the yield of wheat. The experiment consisted of three factors i.e. three irrigation levels viz. no irrigation = (I0), one irrigation at 20 days after sowing (DAS) = (I1) and another at 40 days after sowing (DAS) = (I2). Two planting methods viz. ridge sowing method = (M1) and line sowing method = (M2) and four modern wheat varieties viz. Shotabdi = (V1), Sufi = (V2), Bijoy = (V3) and Prodip = (V4). A split-split plot design was adopted with three replications. The results revealed that almost all the parameters except straw yield and thousand grain weight were significantly affected by irrigation frequencies. The highest grain yield (5.51 t ha-1) was observed in two irrigations and the lowest grain yield (1.99 t ha-1) was found in control treatment. In case of planting method, all the yield and yield contributing characters produced the highest value in ridge sowing method over line sowing method. Grain yield (4.22 t ha-1) was higher in ridge sowing method than the line sowing method and was recorded as (3.59 t ha-1). Variety had significant effects on the all yield components and yield. Prodip noticed to be higher effects on most of the yield components and yield. In respect of grain yield, Prodip produced the maximum (4.02 t ha-1) and Shotabdi gave the minimum (3.75 t ha-1).
Keywords: Irrigation, Planting method, Wheat, Variety and Yield.