酸控制的释放,并抑制废水丰富的堆肥中的化
Oshadhi L Rajapakshe1, Sun K Gurung2, James O'Connor2
1UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6009, Australia.
Journal of environmental management
|August 2, 2025
概括
在缩堆肥颗粒上涂上酸 (LA) 涂层,有效地延迟营养物质的释放,并抑制氨氧化细菌,减少的损失. 5%的LA涂层被证明是可持续施肥的成本效益.
科学领域:
- 土壤科学 土壤科学
- 环境科学 环境科学
- 农业学是一种农业学.
背景情况:
- 堆肥是一种可持续的土壤补充剂,但往往缺乏足够的气来进行有效的肥.
- 用 (N) 丰富堆肥对于其作为肥料的使用至关重要,但管理N释放和防止环境损失仍然是一个挑战.
研究的目的:
- 调查劳里克酸 (LA) 作为涂料剂的有效性,以调节从N富化堆肥中释放的.
- 评估LA涂层缩堆肥对植物生长,的可用性和土壤微生物群落的影响.
主要方法:
- 堆肥颗粒被富含NH4NO3的废水丰富,以增加N的含量.
- 劳里克酸 (LA) 作为5%,10%和15% (w/w) 的涂层被应用.
- 在使用基基尤草的42天温室实验中,通过植物生物质,含量,土壤矿物N和微生物分析评估了N的可用性.
主要成果:
- 没有涂层的缩堆肥 (CGWW) 产生了最高的 N 含量和生物质.
- 用LA涂层的堆肥处理表明植物N吸收和生物质减少,这表明N释放延迟.
- 应用LA显著抑制了氨氧化细菌,在15%的LA下显著减少,这表明化抑制.
- 5%的LA涂层在延迟N释放和抑制微生物活动方面表现出与更高的率相比的有效性.
结论:
- 劳里克酸有效地延迟了富化堆肥中的释放,并抑制了氨氧化细菌,从而减少了潜在的损失.
- 5%的LA涂层提供了一种具有成本效益的策略,以提高缩堆肥作为可持续肥料的性能.
- 作为提高农业应用中使用效率的化抑制剂,LA显示出前景.
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