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从牛堆肥中回收,可以在米生产系统中取代肥
Thanh Tung Nguyen1, Yuka Sasaki1, Hisashi Nasukawa1
1Faculty of Agriculture, Yamagata University, 1-23 Wakaba-machi, Tsuruoka, Yamagata 997-8555, Japan.
The Science of the total environment
|November 28, 2023
概括
从牛堆肥 (CMC) 中回收 (K) 可以在米生产中取代K肥. 最佳的CMC应用确保了产量和土壤肥力足够的K,促进了可持续的米系统.
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:
- (K) 缺乏和大米生产中的负K余量推动了对K肥的需求.
- 有限的岩储量需要可持续的K来源,例如从牛堆肥 (CMC) 中回收K.
- 用CMC代替K肥料对大米产量,土壤K肥力和部分K平衡 (PKB) 的影响需要进一步调查.
研究的目的:
- 评估用CMC取代K肥料对大米生长,产量,植物K吸收,土壤K肥力和PKB的影响.
- 确定最佳的CMC应用率,以实现在米中可持续的K管理.
主要方法:
- 一个为期三年的实地实验 (2020-2022年) 使用四种治疗方法:对照 (未受精),CMC + NPK,CMC + NP + 50% K肥料和CMC + NP.
- 监测水生长,产量,植物K吸收,土壤可交换K,并计算每次处理的PKB.
主要成果:
- CMC提供了足够的K以实现最佳的水生长和产量,超过了推的肥料含量.
- 工厂K的采用量停滞不前,K总投入量增加.
- 在CMC + NP处理中,PKB从负转为正,受CMC输入和植物K吸收的影响,土壤可交换的K反映了PKB趋势.
结论:
- 用CMC取代K肥料是可持续米生产的可行方法.
- 优化CMC应用对于实现积极的PKB和保持土壤K肥力至关重要.
- 对CMC应用率的进一步研究可以提高在米系统中可持续的K管理.
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