A method for promoting yield of renewable rice by optimizing light and temperature resource allocation
By optimizing the cultivation timing and temperature and light resource ratio of ratooning rice, and adopting a mechanized and standardized cultivation model, the problem of uneven distribution of temperature and light resources in ratooning rice cultivation has been solved, achieving stable, efficient, and high yields of ratooning rice, and meeting the needs of large-scale planting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ratooning rice cultivation techniques suffer from uneven distribution of temperature and light resources throughout the year and outdated control methods, resulting in insufficient growth period during the ratooning season, failure to fully release yield potential, and susceptibility to low-temperature damage, which severely restricts the efficient, stable, and large-scale development of ratooning rice.
By optimizing the annual cultivation sequence of ratooning rice and the ratio of temperature and light resources between the two seasons, and adopting a fully mechanized and standardized cultivation model, including steps such as early sowing, early transplanting, and early harvesting, the precise, balanced, and tiered allocation of temperature and light resources between the first and second seasons of ratooning rice is achieved, avoiding resource waste and low-temperature damage, and ensuring safe heading and efficient growth in the second season.
It significantly increased the yield of ratooning rice in both seasons, with the first season yield increasing by 18.20% and the ratooning season yield increasing by 118.13%, resulting in an overall annual yield increase of 43.24%. It solved the problems of insufficient growth period and low resource utilization of ratooning rice, and achieved stable and efficient yield and enhanced stress resistance of ratooning rice.
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