The Impact on Greenhouse Gas Emissions of Rice Crop Management Under the System of Rice Intensification: A Review

Published: Nov. 1, 2023

Rice provides ~20% of human dietary energy and, for many people, a similar share their protein. cultivation, however, produces significant greenhouse gas (GHG) emissions, comparable to those from the aviation sector. The main GHG rice production is methane, mostly result conventional cultivation (CRC) keeping fields continuously flooded during crop cycle. There extensive evidence that alternate wetting and drying (AWD) substantively reduces methane emissions. AWD one component System Intensification (SRI), an agroecological approach management plants, water, soil nutrients practiced by millions farmers in both lowland irrigated upland rainfed cultivation. Thirteen countries have included SRI Nationally Determined Contributions reduction or climate change mitigation. This article reviews 16 field studies net emissions adoption AWD, nine SRI, two compared AWD. Where available, review includes data on yield therefore carbon dioxide-equivalent per kilogram produced. indicates offer substantial (~35–41%) hectare with However, offers ~66% greater than CRC, rice, ~54% more limited directly comparing support this finding. also appears potential sequester soil. lowers farmers’ costs production, adds income can make climate-friendly methods attractive. Both are greatly preferable current practices, but opportunities contribute food security while addressing drivers change.

Language: Английский

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Utilizing the Genetic Potentials of Traditional Rice Varieties and Conserving Rice Biodiversity with System of Rice Intensification Management

Published: Nov. 22, 2023

The genetic potentials of rice cultivars will need to be expressed their fullest if global production is expanded enough by 2050 meet the increased demand expanding population while availability land and water per capita dwindles. New ‘improved’ varieties have contributed greatly over past 50 years, but rate yield increase based on changes has declined in recent decades compared with early years Green Revolution. In fact, many consumers continue prefer consume ‘traditional’ (referred also as local, native, unimproved, or indigenous) because taste, aroma, texture, other qualities. Further, farmers cultivate these better adaptation local climatic soil conditions evolved resistance endemic stresses. practices that comprise System Rice Intensification (SRI), including transplanting seedlings at a young age, wide spacing between plants, keeping well-aerated rather than inundated, enhancing organic matter, provide traditional micro-environments are more favorable for expression agronomic potentials. Interactions among characteristics, water, energy, inputs improve phenotypic physiological performance plants. This paper considers how cultivation SRI methods can raise yields, reduce farmers’ costs production, generate higher incomes, contributing conservation biodiversity.

Language: Английский

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Utilizing the Genetic Potentials of Traditional Rice Varieties and Conserving Rice Biodiversity with System of Rice Intensification Management

Agronomy, Journal Year: 2023, Volume and Issue: 13(12), P. 3015 - 3015

Published: Dec. 8, 2023

The genetic potentials of rice cultivars will need to be expressed their fullest if global production is expanded enough by 2050 meet the increased demand expanding population while availability land and water per capita dwindles. New ‘improved’ varieties have contributed greatly over past 50 years, but rate yield increase based on changes has declined in recent decades compared with early years Green Revolution. In fact, many consumers continue prefer consume ‘traditional’ (referred also as local, native, unimproved, or indigenous varieties) because taste, aroma, texture, other qualities. Furthermore, farmers cultivate these better adaptation local climatic soil conditions evolved resistance endemic stresses. practices that comprise System Rice Intensification (SRI), including transplanting seedlings at a young age, wide spacing between plants, keeping well aerated rather than inundated, enhancing organic matter, provide traditional micro-environments are more favorable for expression agronomic potentials. Interactions among characteristics, water, energy, inputs improve phenotypic physiological performance plants. This paper considers how cultivation SRI methods can raise yields, reduce farmers’ costs production, generate higher incomes contributing conservation biodiversity.

Language: Английский

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Regenerative Agriculture for Climate Change Mitigation and Food Security

Published: Jan. 1, 2024

Language: Английский

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