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Agrobiodiversity / / Global action to reduce greenhouse gas emissions in rice production

Global action to reduce greenhouse gas emissions in rice production

How to identify the best practices for mitigating greenhouse gas (GHG) emissions in rice, while at the same time making production more efficient?ghg ciat.jpg

This is the question that brought together rice scientists from South and North American countries for a meeting of the Paddy Rice Research Group of the Global Research Alliance on Agricultural Greenhouse Gases (GRA). Held in mid-June at Montevideo, Uruguay, the meeting provided an overview of best practices for measuring GHG emissions in rice and an update on national efforts to reduce emissions.

CIAT researcher at Agrobiodiversity Research Area Manabu Ishitani represented CIAT in the event and made a presentation titled Ongoing Research on Rice GHG Emissions at CIAT Headquarter.  In support of the Japanese International Cooperation Agency (JICA), he and staff of the Center’s phenotyping platform and Ecosystem Service Laboratory are developing a methodology to quantify GHG emission from rice fields toward improvement of resource use efficiency in rice such as water and nitrogen.

While rice is one of Latin America’s most important staple foods, production of the crop is also a major source of GHG emissions.  Flooded rice fields release methane, as microbes decompose organic matter under anaerobic soil conditions. Changing water and crop management strategies together with increased use of nitrogen fertilizer can reduce methane emissions, but this raises emissions of nitrous oxide, an even more potent GHG.

The previous meeting of the Paddy Rice Research Group, established in April 2010 as one of three GRA research groups, took place at the International Rice Research Institute (IRRI), the Philippines, in January of this year. The Alliance brings together country representatives and other partners to share knowledge and foster collaborative research on agriculture’s GHG emissions.

At the meeting in Montevideo, Alliance members discussed the need to boost investment in research on GHG emissions from paddy rice through actions such as wider sharing of member countries’ research results and the possible establishment of a multisite collaborative project.

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  • Reinhardt Howeler: Thanks, Keith. It was a pleasure writing this book as it brought back so many good memories of working with cassava, both in Latin America and in Asia. I was lucky that the Nippon Foundation suggested that I write this book and financed its publication. They also wanted a simplified version for farmers and extension workers that could be translated into various languages. The English version of this new book is now going to press in Hanoi, while the Khmer and Vietnamese translations are also ready for printing and the Thai and Chinese translations are still being worked on. In case you are interested in the English version, let me know. My email address is still And let me know where you are working now and what you are doing. Reinhardt
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  • Keith Fuglie: An impressive publication! Reinhardt Howeler has done an incredible job of summarizing lessons from nearly 30 years of work on cassava improvement in Asia. This very successful collaboration between CIAT and national research programs demonstrates what can be achieved through modest but persistent investment in agricultural research, even with a relatively neglected crop grown primarily by poor farm families in marginal environments.
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  • Kellan: i am also working on ppd on cassava. can you please help me find find a suitable protocol to analyse ppd.
  • ALI SALEM IBRAHIM: Hi we looking to start collaborations with ciat center if it,s possible.
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