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Conservation tillage systems for improving productivity and resource-use efficiency in cotton (Gossypium hirsutum)–wheat (Triticum aestivum) cropping sequence

KrishiKosh

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Title Conservation tillage systems for improving productivity and resource-use efficiency in cotton (Gossypium hirsutum)–wheat (Triticum aestivum) cropping sequence
Ph d
 
Creator Kuldeep Kumar
 
Contributor A.R. Sharma
 
Subject Bed planting, Conventional tillage, Cotton-wheat system, Residue management, Yield, Zero tillage
 
Description T-8713
The effect of different tillage and crop establishment techniques, and residue management on the
performance of cotton and wheat grown in sequence was studied at New Delhi during 2008–09 to
2010–11. The purpose of the study was to make a comparative assessment of different tillage and
crop establishment, and residue management practices on the performance of cotton–wheat
rotation. The experiment was laid out in split plot design keeping tillage and crop establishment
techniques in main-plot and residue management in sub-plot with three replications. Weather
conditions fluctuated widely in 3 years, which led to variable performance of cotton. Seed cotton
yields were exceptionally high (>3.5 t/ha) during the normal rainfall year of 2008 (820 mm), very
low (1.4–1.7 t/ha) during abnormal year of 2009 (578 mm), and moderate (2.0–2.5 t/ha) during
the exceptionally wet season of 2010 (938 mm). Seed cotton yield was significantly higher on
beds than on flat surface both under conventional and zero-tillage conditions. Residue application
was more beneficial under zero-till than conventional tillage. Wheat yield was more stable in 3
cropping cycles (4.0–4.5 t/ha), and was comparatively lower under bed than flat sowing. The
grain yield of wheat under ZT–flat along with residue of both crops was equal to that under CT–
flat, indicating essentiality of residue application under zero-till conditions.
 
Date 2016-09-06T16:37:43Z
2016-09-06T16:37:43Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/75734
 
Format application/pdf
 
Publisher IARI, DIVISION OF AGRONOMY