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Asian Journal of Plant Sciences

Year: 2007  |  Volume: 6  |  Issue: 2  |  Page No.: 338 - 343

Effects of Irrigation and Different Mulches on Yield of Profitabiliity of Cauliflower

M. Moniruzzaman, S.M. Faisal, M.A.R. Sarkar, M. Ismail Hossain, M. Afsar Ali and M.A.H. Talukder


A field experiment on cauliflower (var. Rupa) was conducted in two consecutive years from November 2000 to March 2002 in sandy clay loam soil at the Agricultural Research Station, Raikhali, Rangamati Hill District to observe the effect of irrigation and mulch materials on its yield, yield attributes and profitability. Twenty combinations of treatments consisting of four levels of irrigation (no irrigation = control, irrigation at 7, irrigation at 14 and irrigation at 21 days interval) and five levels of mulching (non mulch (control), black polythene mulch, rice straw mulch, sun grass mulch and mango leaves’ mulch) were used for this trial. Irrigation at 7 days interval and mulching with black polythene independently as well as in combination produced maximum values for yield attributes and marketable yield of cauliflower. The highest curd yields of 30.38 and 29.40 t ha-1 were obtained from 7 days irrigation interval with black polythene mulch in 2000-01 and 2001-02, respectively. The lowest curd yields of 10.50 and 10.04 t ha-1 were obtained from without irrigation and mulching in 2000-01 and 2001-02, respectively. Seven days interval irrigation and mulching with forest leaves (mango leaves) in combination gave the highest benefit cost ratio (6.51) closely followed by 14 days interval irrigation with the same mulch (6.48). But maximum marginal rate of return (1156.89%) was recorded from the combination of 14 days interval irrigation and mulching by mango leaves followed by irrigation at 21 days interval with the same type of mulch (936.92%).

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