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Conservation agriculture practices for increasing resource-use efficiency and productivity of rainfed cropping systems

KrishiKosh

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Title Conservation agriculture practices for increasing resource-use efficiency and productivity of rainfed cropping systems
Ph.D.
 
Creator Lal Prasad Amgain
 
Contributor A. R. Sharma
 
Subject Pearlmillet, Preceding crops, Residue management, Semi-arid, Zero-till
 
Description T-8747
Growing short-duration pearlmillet as rainy-season crop followed by wheat, chickpea and mustard
during winter is the dominant cropping system under limited availability of soil moisture in semiarid
areas. Conservation agriculture practices, such as zero-tillage with residue recycling may be a
feasible approach to increase the productivity and resource-use efficiency under rainfed ecosystem.
A field experiment was conducted during 2011–2012 and 2011-12 at New Delhi to identify
feasible cropping system by growing three winter-season crops, viz. wheat, chickpea and mustard
along with the organic mulches, viz. crop residue and Leucaena twigs applied to both crops. Both
rainy- and winter-season crops were grown under zero-till following other recommended package
of practices under rainfed conditions. Pearlmillet recorded significantly higher grain yield with
application of Leucaena twigs in 2010, but produced comparatively higher yield with crop residues
in 2011. Pearlmillet grown after chickpea produced significantly higher grain yield (1.61 t ha-1),
followed by mustard (1.38 t ha-1) and wheat (1.28 t ha-1). The interaction effect of residue
management and preceding crops was significant for grain yield. Chickpea with crop residue
recorded significantly higher grain yield (1.95 t ha-1), followed by that with Leucaena twigs (1.56 t
ha-1). The nutrient uptake showed the same trend as that of grain and stover yield, and recorded
significant interaction effect for N uptake in grain. The economic analysis exhibited highest returns
wihr Leucaena twigs in 2010, and after chickpea with crop residue, followed by Leucaena twigs
mulching in 2011. It was concluded that pearlmillet-chickpea cropping systems with crop residue
and Leucaena twigs mulching was beneficial for achieving higher productivity and profitability
under zero-till semi-arid conditions.
 
Date 2016-08-27T11:59:10Z
2016-08-27T11:59:10Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/74073
 
Format application/pdf
 
Publisher IARI, DIVISION OF AGRONOMY