草管理和应用率对土壤的物理化学性质和盐酸米田的水产量的影响
Cheng Ran1,2, Jiaquan Li1, Ya Gao1
1Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China.
Plants (Basel, Switzerland)
|January 8, 2025
概括
用肥返回草通过增强土壤结构和增加大米产量来改善盐酸土壤. 适用于早期吸管回收的最佳应用率为270公斤N ha-1,提高土壤有机物质和聚合物稳定性.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 农业学是一种农业学.
背景情况:
- 草回收对于可持续农业至关重要,但它对具有挑战性的盐酸土壤的影响还未得到充分研究.
- 盐酸土壤的结构不佳,盐度高,营养素低,阻碍作物生长和草分解.
研究的目的:
- 评估草返回和化肥对土壤特性和盐酸土壤中大米产量的影响.
- 为了确定酸盐土壤管理中回收的最佳化肥率.
主要方法:
- 进行了一项为期两年的实地实验,使用不同的管管理 (返回/移除) 和肥率 (0-360 kg N ha-1).
- 测量了土壤总体稳定性,土壤化学性质 (包括ESP和SOM),以及米粒产量.
主要成果:
- 草回收显著降低了土壤可交换百分比 (ESP) 和改善了土壤聚合物的稳定性,增加了土壤有机物质 (SOM).
- 通过吸管回报和270公斤N ha-1获得最佳结果,从而获得了最高的米粒产量 (8.01 t ha-1).
- 对于大多数土壤指标来说,在270和360公斤N ha-1之间没有观察到显著差异.
结论:
- 草回归与适当的肥 (270公斤N ha-1) 结合,是改善盐酸土壤的一个有希望的策略.
- 这种做法增强了土壤的健康状况,并大大提高了大米产量,提供了可持续的农业解决方案.
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