通过优化不同灌方法下的管理来减少玉米生产的碳和足迹
Yunfei Di1,2, Yu Gao1,2, Haibo Yang1,2
1College of Resources and Environmental Sciences, Inner Mongolia Agricultural University, Hohhot, China.
Frontiers in plant science
|December 19, 2024
概括
使用尿酶抑制剂和滴灌的优化管理显著减少了玉米生产中的和碳足迹. 这种方法降低了环境影响,同时保持了作物产量.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 农业学是一种农业学.
背景情况:
- (N) 肥料和水资源管理是影响玉米生产环境足迹的关键因素.
- 评估碳 (C) 和足迹对于可持续的农业系统至关重要.
研究的目的:
- 分析不同灌和N管理策略下的玉米生产的N和C足迹.
- 与其他实践相比,用尿酶抑制剂 (OMI) 优化N管理的环境影响的评估.
主要方法:
- 实地实验于2019-2020年在中国西北地区进行.
- 使用生命周期评估 (LCA) 来确定N和C足迹.
- 处理包括洪水和滴灌,使用不同的N应用策略:控制,优化N管理 (OM),优化N管理与尿素抑制剂 (OMI) 和农民实践 (FP).
主要成果:
- 与农民实践相比,OMI处理在洪水和滴水灌下显示出明显较低的反应性N损失,温室气体排放,N足迹和C足迹.
- 滴滴灌的环境影响低于洪水灌.
- 漏,灌电力和氨挥发是足迹的关键因素,而肥料,灌电力和N2O排放则主导了C足迹.
结论:
- 将优化的管理与尿酶抑制剂和像滴灌这样的高效灌方法相结合,可以大幅减少玉米种植的环境足迹.
- 这些综合战略有助于减轻环境影响,而不影响玉米谷物产量.
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