Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains
The Indo-Gangetic plains (IGP) of India are dominated by rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system (RWCS). Soil, climate, intensity and methods of rice and wheat cultivation differ in different parts of the IGP. So, the emission of greenhouse gases (GHG) will also differ....
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Indian Council of Agricultural Research
2015-06-01
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| Series: | The Indian Journal of Agricultural Sciences |
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| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/49243 |
| _version_ | 1797742042268303360 |
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| author | D K GUPTA A BHATIA A KUMAR B CHAKRABARTI N JAIN H PATHAK |
| author_facet | D K GUPTA A BHATIA A KUMAR B CHAKRABARTI N JAIN H PATHAK |
| author_sort | D K GUPTA |
| collection | DOAJ |
| description |
The Indo-Gangetic plains (IGP) of India are dominated by rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system (RWCS). Soil, climate, intensity and methods of rice and wheat cultivation differ in different parts of the IGP. So, the emission of greenhouse gases (GHG) will also differ. Present study quantified GHG emission and global warming potential (GWP) of RWCS of Haryana (Upper-IGP) and Bihar (Middle-IGP). A survey of rice-wheat growing farmers in three districts of Haryana (Kaithal, Karnal and Kurukshetra) and Bihar (Begusarai, Bhagalpur and Khagaria) was conducted. The survey data was used as inputs in InfoRCT model to simulate GHG emission in ricewheat systems of different districts. The selected areas in the IGP significantly differed in nitrogen, water and tillage inputs resulting in differences in emission of methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2) and the GWP. The simulated average GWP of conventional RWCS was 4268±179 kg CO2 equivalent/ha in Middle-IGP (Bihar) and 10605±680 kg CO2 equivalent/ha in the Upper-IGP (Haryana). However, with use of resource conserving technologies (RCTs) such as system of rice intensification (SRI), direct-seeded rice (DSR) and zero tillage wheat (ZTW), there was lowering in GWP than conventional puddled transplanted rice and tilled wheat. Rice had higher contribution than wheat towards GWP in both the states. The continuous flooded puddled transplanted rice (CFTPR), use of electric pump for irrigation and application of high amount of nitrogenous fertilizer were identified as main contributors of GWP. The site-specific intervention of RCTs may be recommended to reduce the emission of GHG in the RWCS in the IGP.
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| language | English |
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| publishDate | 2015-06-01 |
| publisher | Indian Council of Agricultural Research |
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| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-850d92dae1af4b97b8db9c9d072843e82023-08-17T09:17:34ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192015-06-0185610.56093/ijas.v85i6.49243Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic PlainsD K GUPTA0A BHATIA1A KUMAR2B CHAKRABARTI3N JAIN4H PATHAK5Scientist, Regional Research Station, Central Arid Zone Research Institute, Pali 306 401Principal Scientist, Indian Agricultural Research Institute, New Delhi 110 012Research Associate, Indian Agricultural Research Institute, New Delhi 110 012Senior Scientist, Indian Agricultural Research Institute, New Delhi 110 012Senior Scientist, Indian Agricultural Research Institute, New Delhi 110 012Principal Scientist, Center for Environment Science and Climate Resilient Agriculture The Indo-Gangetic plains (IGP) of India are dominated by rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system (RWCS). Soil, climate, intensity and methods of rice and wheat cultivation differ in different parts of the IGP. So, the emission of greenhouse gases (GHG) will also differ. Present study quantified GHG emission and global warming potential (GWP) of RWCS of Haryana (Upper-IGP) and Bihar (Middle-IGP). A survey of rice-wheat growing farmers in three districts of Haryana (Kaithal, Karnal and Kurukshetra) and Bihar (Begusarai, Bhagalpur and Khagaria) was conducted. The survey data was used as inputs in InfoRCT model to simulate GHG emission in ricewheat systems of different districts. The selected areas in the IGP significantly differed in nitrogen, water and tillage inputs resulting in differences in emission of methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2) and the GWP. The simulated average GWP of conventional RWCS was 4268±179 kg CO2 equivalent/ha in Middle-IGP (Bihar) and 10605±680 kg CO2 equivalent/ha in the Upper-IGP (Haryana). However, with use of resource conserving technologies (RCTs) such as system of rice intensification (SRI), direct-seeded rice (DSR) and zero tillage wheat (ZTW), there was lowering in GWP than conventional puddled transplanted rice and tilled wheat. Rice had higher contribution than wheat towards GWP in both the states. The continuous flooded puddled transplanted rice (CFTPR), use of electric pump for irrigation and application of high amount of nitrogenous fertilizer were identified as main contributors of GWP. The site-specific intervention of RCTs may be recommended to reduce the emission of GHG in the RWCS in the IGP. https://epubs.icar.org.in/index.php/IJAgS/article/view/49243BiharGlobal warming potentialGreenhouse gasHaryanaIGPRice-wheat |
| spellingShingle | D K GUPTA A BHATIA A KUMAR B CHAKRABARTI N JAIN H PATHAK Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains The Indian Journal of Agricultural Sciences Bihar Global warming potential Greenhouse gas Haryana IGP Rice-wheat |
| title | Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains |
| title_full | Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains |
| title_fullStr | Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains |
| title_full_unstemmed | Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains |
| title_short | Global warming potential of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system of the Indo-Gangetic Plains |
| title_sort | global warming potential of rice oryza sativa wheat triticum aestivum cropping system of the indo gangetic plains |
| topic | Bihar Global warming potential Greenhouse gas Haryana IGP Rice-wheat |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/49243 |
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