Agronomic improvements can make future cereal systems in South Asia far more productive and result in a lower environmental footprint

Agronomic improvements can make future cereal systems in South Asia far more productive and result in a lower environmental footprint

© 2015 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 22(2016), 3 vom: 15. März, Seite 1054-74
1. Verfasser: Ladha, Jagdish Kumar (VerfasserIn)
Weitere Verfasser: Rao, Adusumilli Narayana, Raman, Anitha K, Padre, Agnes Tirol, Dobermann, Achim, Gathala, Mahesh, Kumar, Virender, Saharawat, Yashpal, Sharma, Sheetal, Piepho, Hans Peter, Alam, Md Mursedul, Liak, Ranjan, Rajendran, Ramasamy, Reddy, Chinnagangannagari Kesava, Parsad, Rajender, Sharma, Parbodh C, Singh, Sati Shankar, Saha, Abhijit, Noor, Shamsoon
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't South Asia best management practices cereal productivity cereals systems conservation agriculture crop diversification global warming potential rice-based cropping system
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520 |a South Asian countries will have to double their food production by 2050 while using resources more efficiently and minimizing environmental problems. Transformative management approaches and technology solutions will be required in the major grain-producing areas that provide the basis for future food and nutrition security. This study was conducted in four locations representing major food production systems of densely populated regions of South Asia. Novel production-scale research platforms were established to assess and optimize three futuristic cropping systems and management scenarios (S2, S3, S4) in comparison with current management (S1). With best agronomic management practices (BMPs), including conservation agriculture (CA) and cropping system diversification, the productivity of rice- and wheat-based cropping systems of South Asia increased substantially, whereas the global warming potential intensity (GWPi) decreased. Positive economic returns and less use of water, labor, nitrogen, and fossil fuel energy per unit food produced were achieved. In comparison with S1, S4, in which BMPs, CA and crop diversification were implemented in the most integrated manner, achieved 54% higher grain energy yield with a 104% increase in economic returns, 35% lower total water input, and a 43% lower GWPi. Conservation agriculture practices were most suitable for intensifying as well as diversifying wheat-rice rotations, but less so for rice-rice systems. This finding also highlights the need for characterizing areas suitable for CA and subsequent technology targeting. A comprehensive baseline dataset generated in this study will allow the prediction of extending benefits to a larger scale 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a South Asia 
650 4 |a best management practices 
650 4 |a cereal productivity 
650 4 |a cereals systems 
650 4 |a conservation agriculture 
650 4 |a crop diversification 
650 4 |a global warming potential 
650 4 |a rice-based cropping system 
700 1 |a Rao, Adusumilli Narayana  |e verfasserin  |4 aut 
700 1 |a Raman, Anitha K  |e verfasserin  |4 aut 
700 1 |a Padre, Agnes Tirol  |e verfasserin  |4 aut 
700 1 |a Dobermann, Achim  |e verfasserin  |4 aut 
700 1 |a Gathala, Mahesh  |e verfasserin  |4 aut 
700 1 |a Kumar, Virender  |e verfasserin  |4 aut 
700 1 |a Saharawat, Yashpal  |e verfasserin  |4 aut 
700 1 |a Sharma, Sheetal  |e verfasserin  |4 aut 
700 1 |a Piepho, Hans Peter  |e verfasserin  |4 aut 
700 1 |a Alam, Md Mursedul  |e verfasserin  |4 aut 
700 1 |a Liak, Ranjan  |e verfasserin  |4 aut 
700 1 |a Rajendran, Ramasamy  |e verfasserin  |4 aut 
700 1 |a Reddy, Chinnagangannagari Kesava  |e verfasserin  |4 aut 
700 1 |a Parsad, Rajender  |e verfasserin  |4 aut 
700 1 |a Sharma, Parbodh C  |e verfasserin  |4 aut 
700 1 |a Singh, Sati Shankar  |e verfasserin  |4 aut 
700 1 |a Saha, Abhijit  |e verfasserin  |4 aut 
700 1 |a Noor, Shamsoon  |e verfasserin  |4 aut 
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