Journal of FARM SCIENCES, Vol 29, No 4 (2016)

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Effect of mulching on maize and wheat (Triticum aestivum) in maize-wheat cropping system

H.R. Priya, G.B. Shashidhara

Abstract


A field experiment was carried out in deep black soils under rainfed conditions for two consecutive years during kharif and rabi season of 2013-14 and 2014-15 to study the performance of rabi wheat as influenced by mulching practices in maize-wheat cropping system. The experiment comprised of two vertical strip treatments viz., kharif maize grown with mulch and without mulch and horizontal sub plot treatments viz. rabi wheat with mulch and without mulch. The growth parametes, yield parameters, yield of wheat and available moisture and economics varied significantly among the mulching practices. All the growth parameters viz., plant height, number of effective tillers per meter row length, leaf area, dry matter production; yield parameters viz., grain weight per ear, test weight and grain and straw yield of wheat were significantly higher with mulching to preceding kharif maize followed by wheat with mulching. It also recorded the highest total N, P and K uptake in wheat. The apparent recovery efficiency, agronomic efficiency of N and P were higher with that treatment. The economic analysis also revealed that the maximum benefits could be obtained from both seasoned mulch as compared to without mulch treatment. Benefit-cost ratio was highest in both season mulch and was lowest in without mulch any of the crops in sequence. All the mulch treatments improved the available moisture status in soil. The highest soil moisture was

observed in both season mulched wheat. The residual soil moisture was minimum in both season mulched wheat, indicating effective utilization of moisture by the crop under that treatment.

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