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Journal of Biological Sciences
Year: 2004  |  Volume: 4  |  Issue: 5  |  Page No.: 668 - 670

Effect of Landform and Irrigation Frequency on Cotton (Gossypium) Yield in Semi-arid Zimbabwe

F.T. Mugabe and F. Munyanyi    

Abstract: The effect of planting irrigated cotton on Tied Ridge (TR) and Flat (F) under three irrigation frequencies (75, 40 and 30% Depletion of Available Moisture, DAM) on yield and water use efficiency was studied at Chiredzi Research Station for two seasons 1990/91 and 1991/92. Growing cotton on tied ridges gave 19 and 35% more yield than on flat in the 1990/91 and 1991/92 seasons, respectively. More available moisture due to water collection on tied ridges as compared to flat was given as the reason for the yield increase. Yields were not affected by frequency of irrigation.

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