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Conservation tillage and weed management for improving resource-use efficiency and productivity of soybean (Glycine max)−wheat (Triticum aestivum) cropping system

KrishiKosh

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Title Conservation tillage and weed management for improving resource-use efficiency and productivity of soybean (Glycine max)−wheat (Triticum aestivum) cropping system
Ph.D.
 
Creator Ali Monsefi
 
Contributor A.R. Sharma
 
Subject You have exceeded your usage quota. Please contact gshukla [at] iitk.ac.in
Economics, Grain yield, Raised-bed, Soybean stover, Zero tillage
 
Description T-8767
The effect of different tillage and crop establishment techniques, and weed management on the
performance of wheat grown after soybean was studied at New Delhi during 2010-11 to 2011–12.
The experiment was laid out in split-plot design keeping conventional tillage (CT) and zero tillage
(ZT), and crop establishment (raised-bed and flat-bed) in main plot; and weed managementviz.
isoproturon + hand weeding (HW), mesosulfuron + iodosulfuron, soybean stover + isoproturon,
and unweeded control in sub-plot with three replications. The population of grassy as well as
broad-leaved weeds was significantly more under raised-bed than flat-bed, particularly under ZT
condition, while that under flat-bed , the differences between CT and ZT were on par at 60 and 90
DAS. The lowest weed population was under isoproturon + HW, which was significantly lower
than mesosulfuron + iodosulfuron, and soybean stover + isoproturon. The grassy weeds under latter
two treatments were similar but the broad-leaved weeds were significantly higher under soybean
stover + isoproturon than mesosulfuron + iodosulfuron. The grassy weeds were lower under
soybean stover + isoproturon than other treatments, while the population of broad-leaved species
was similar under all treatments, but significantly lower than unweeded control. The grain yield of
wheat under ZT–flat-bed along with application of herbicide or soybean residue with herbicide
was equal to that under CT–flat-bed. All weed control practices,viz. isoproturon + HW,
mesosulfuron + iodosulfuron and soybean stover + isoproturon were on par and equally effective
improving the yield of grain as well as straw. The highest net benefit: cost ratio was under ZT–flatbed
and mesosulfuron + iodosulfuron or soybean stover mulch + isoproturon in both years.
 
Date 2016-08-23T09:40:11Z
2016-08-23T09:40:11Z
2012
 
Identifier http://krishikosh.egranth.ac.in/handle/1/73344
 
Format application/pdf
 
Publisher IARI, DIVISION OF AGRONOMY