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Effect of tillage, cultivars, nitrogen and residue management on crop performance and carbon sequestration in rice-wheat cropping system

KrishiKosh

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Title Effect of tillage, cultivars, nitrogen and residue management on crop performance and carbon sequestration in rice-wheat cropping system
 
Creator Pardeep Kumar
 
Contributor Satish Kumar
 
Subject Tillage andCrop establishment (TCE), Conservation agriculture (CA), Direct seeded rice (DSR), Conventional tillage (CT), Residue management, Soil organic carbon (SOC)
 
Description A field experiment entitled “Effect of tillage, cultivars, nitrogen and residue management on
crop performance and carbon sequestration in rice-wheat cropping system” was conducted at the
participatory strategic research and learning platform for climate smart agriculture, Taraori, Karnal, Haryana
during Kharif, and rabi seasons of 2013-14 and 2014-15 in collaboration with CIMMYT under CGIAR’s
research program on climate change, agriculture and food security (CIMMYT-CCAFS). The treatment
consisted of three tillage and crop establishment (TCE) methods in main plots and four treatments in subplot
for rice (cultivar and nitrogen management) and wheat (legume and nitrogen management) crops. It was
conducted in split plot factorial design having twelve treatment combinations each crop with three
replications. Plant height, dry matter accumulation and no. of tillers were significantly affected by tillage and
crop establishment method in both the year for both of the crops. Treatment ZT DSR-ZTW + R showed
higher CGR and RGR as compared to rest of the treatments. Yield attributes of rice such as effective tillers,
number of grains per panicle, 1000 grain weight etc were significantly influenced by TCE, Where PTR
produced significantly lower number of effective tillers in comparison to ZT DSR but it produced higher
number of grain per panicle over ZT DSR+R. Wheat grown under ZT DSR-ZT W +R resulted 8.63%
(2013-14) and 14.60 % (2014-15) higher grain yield as compared to PTR-CTW. In both the years higher
grain yield was observed under hybrid than Basmati. Treatment with full residue retention (ZT DSR-ZTW +
R) showed highest potential of carbon sequestration; where up to depth of 30 cm, SOC was significantly
affected by tillage and residue management. Tillage and residue management practices showed varied
effects on system grain yield (Wheat equivalent), total cost, gross returns and net returns, where PTR-CTW
resulted into lowest system grain yield and net returns. ZT DSR-ZTW + R produced maximum system grain
yield. Maximum system net return was computed under ZT DSR-ZTW – R treatment in both the years i.e.
163451/ha (2013-14) and 141275/ha (2014-15); which was 7.28 and 12.08% higher than PTR-CTW in
2013-14 and 2014-15, respectively. Cultivation of basmati rice was more remunerative irrespective of
growing season.
 
Date 2017-01-20T13:43:31Z
2017-01-20T13:43:31Z
2016
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/97378
 
Language en
 
Format application/pdf
 
Publisher CCSHAU