The Evolution of Sustainable Rice Production along the Lower Mississippi River (USA) with the Increasing Spector of Climate Change
It is incumbent to assess the status of U.S. rice production and its agronomic practices and then predict if the status is sustainable with climate change. Climate change expectations include a strong likelihood of higher temperatures and some uncertainty in precipitation. Technological solutions ap...
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
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IntechOpen
2023
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| Acceso en línea: | https://www.intechopen.com/chapters/87944 |
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| Sumario: | It is incumbent to assess the status of U.S. rice production and its agronomic practices and then predict if the status is sustainable with climate change. Climate change expectations include a strong likelihood of higher temperatures and some uncertainty in precipitation. Technological solutions appear to be revolving around (i) rice breeding to improve cultivar heat tolerance, especially for high nighttime temperatures, and (ii) altering irrigation regimes to conserve groundwater. Of concern are the potential of protracted droughts in the Sacramento Valley of California, salinization along the gulf coast and aquifer depletion across portions of the mid-South. The objectives of this manuscript include: (i) evaluate existing US Mid-South rice irrigation strategies, (ii) assess the yield potential and seed quality of emerging water-conserving irrigation regimes, (iii) assess the influence of rice irrigation regimes on aquifer overdraft, and (iv) assess the influence of increased temperatures on rice growth and development. Alternate wetting and drying irrigation and furrow irrigation are attractive irrigation regimes to reduce aquifer depletion. Yield trials show mixed results, with yield differences associated with soil type, timing and frequency of irrigations, nitrogen fertilization, and variety selection. Producer acceptance of furrow irrigation is rapidly developing, even in rice producing regions that have not experienced aquifer overdraft. |
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| ISBN: | 978-1-83769-057-2 |
| DOI: | 10.5772/intechopen.112385 |