营养管理调节了酸化引起的产量风险和米中的含量
Donghao Xu1,2, Gerard H Ros3, Pengqi Liu4
1Wageningen University and Research, Earth Systems and Global Change Group, Wageningen, Netherlands. donghao.xu@wur.nl.
Nature food
|March 13, 2026
概括
中国的肥料回收减轻了土壤酸化,但有积累的风险. 可持续的肥料回收需要降低肥料和沉积中的,因为目前的水平限制安全回收率为20%.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 农业科学 农业科学
背景情况:
- 中国的耕地酸化降低了作物产量,增加了作物中的积累.
- 肥料回收减轻土壤酸化,但由于肥料中的含量增加了的风险.
研究的目的:
- 评估营养管理对中国米系统土壤酸化和动态的影响.
- 评估堆肥回收对土壤健康和作物安全的时空影响.
主要方法:
- 将动态模型与VSD+土壤酸化模型相结合.
- 在典型的中国米系统中模拟营养管理策略.
主要成果:
- 改进的肥料回收减少了土壤酸化和矿物肥的使用.
- 肥料回收加速了土壤的积,因为增加了输入和减少了漏.
- 提高土壤pH值暂时减少了大米,但被长期积累抵消了.
- 目前的沉积水平限制了安全的肥料回收率为20% (低于目前的30%比率).
结论:
- 可持续的肥料回收需要降低肥料中的含量,并尽量减少沉积.
- 优化肥料回收需要平衡土壤健康效益与污染风险.
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