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Evaluation of precision-conservation agriculture based practices for resource use efficiency and carbon footprints in maize-wheat cropping system

KrishiKosh

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Title Evaluation of precision-conservation agriculture based practices for resource use efficiency and carbon footprints in maize-wheat cropping system
 
Creator Jat, Ram Dhan
 
Contributor Nanwal, R.K.
 
Subject tillage, nutrient management, nutrients, crops, irrigation, wheats, grain, maize, yields, legumes
 
Description The experiment was conducted during 2012-13 and 2013-14 at participatory strategic research and learning platform for climate smart agriculture, Taraori, Karnal, Haryana. The experiment was conducted in split plot design with three replications. The treatments consisted of four combinations of tillage, residue and legume viz. CT, CT+GG, PB and PB+GG were taken in the main plots and three nutrient management viz. FFP, RDF and
SSNM in sub plots.
All growth parameters viz. plant height, dry matter accumulation, LAI, and CGR were significantly affected by tillage, residue and legume. The growth parameters of maize and wheat were also influenced due to nutrient management. Yield attributes of maize such as cobs/ha2 and grains/cob were significantly influenced by tillage, residue and tillage. Similarly, yield attributes of wheat and green gram were also significantly influenced. The PB+GG increased system productivity like 28.20 and 30.74 % as compared to CT during 2012-13 and 2013-14, respectively. The SSNM increased system productivity by 15.11 and 18.11 % as compared to FFP during both the year. The maximum net returns of maize-wheat-green gram
cropping system was computed under PB+GG (167.65 x 103 and 211.65 x 103 INR/ha). The gross returns and net returns were obtained maximum under SSNM (225.61 and 269.06 INR/ha; 154.15 and 197.85 INR/ha) in 2012-13 and 2013-14, respectively.
The highest input water productivity was observed in PB+GG (1.22 and 1.44 kg grain m-3 water). FFP gave lower 15.30 and 17.79 % input water productivity in comparison to SSNM during 2012-13 and 2013-14, respectively. The maximum C-input was estimated under CT+GG with 1072.19 and 983.80 MJ/ha during 2012-13 and 2013-14, respectively. The maximum C-output was recorded under PB+GG (16947.84 and 18329.35 MJ/ha). CSI was higher under PB (16.87 and 19.13) during 2012-13 and 2013-14, respectively. SSNM increased CSI by 20.23 and 25.25 % as compared to FFP in first and second year, respectively. The maximum energy-use efficiency was recorded under PB (11.86) during 2012-13, but under PB+GG (14.22) during 2013-14.
 
Date 2016-02-05T11:50:34Z
2016-02-05T11:50:34Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/64170
 
Language en
 
Format application/pdf
 
Publisher CCSHAU