在双零种植小麦的精密和水管理:对光合作用参数,生产率,营养使用效率和N2O排放的影响
Vijay Pratap1,2, Anchal Dass1, P Krishnan3
1Division of Agronomy, ICAR-Indian Agricultural Research Institute, New Delhi, India.
Frontiers in plant science
|November 24, 2025
概括
使用精密 (N) 和水资源管理的双零耕作 (ZT) 小麦种植提高了作物产量和资源效率. 在印度-河流平原 (IGP) 的这种可持续方法减少了改善农业的环境影响.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 环境科学 环境科学
背景情况:
- 传统的耕作,过度灌和过度使用会降低印度-甘河平原 (IGP) 的土壤和水.
- 这威胁到重要的米麦作物系统的可持续性.
研究的目的:
- 评估零耕作 (ZT) 与精密水和 (N) 管理的整合.
- 提高小麦农业的可持续性,营养效率和环境性能.
主要方法:
- 在IGP西北部进行了一项为期两年的研究 (2019-21).
- 对传统的ZT,三个灌方案 (25-75%DASM) 和三个N策略 (RDN,NE®+LCC,NE®+SPAD) 进行了双重ZT小麦测试.
主要成果:
- 双ZT小麦显示出优异的生长,增加了PAR拦截 (3.5%),以及更高的谷物/草产量 (6.7-9.9%).
- 25% DASM 的灌促进了光合作用和产量; 50% DASM 节约了水,产量损失最小.
- NE®+SPAD N管理节省了40公斤N ha-1,提高了生产力和效率.
结论:
- 将ZT与75%的DASM+和NE®+LCC相结合,显著减少了N2O排放.
- 精密的N-水策略和双ZT提高了IGP小麦系统的生产率,资源保护和环境可持续性.
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