基于生物气残留生物炭的潜在缓释肥料:营养素释放模式和改善土壤肥沃性的协同机制
Zifeng Luo1, Yunliang Li2, Xu Pei2
1College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China; South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China.
Environmental research
|May 6, 2024
概括
一种基于生物炭的新型肥料 (MAP@BRC) 有效地从生物气泥中恢复营养,提供缓释和. 这种可持续的肥料提高了作物产量,改善了土壤健康,并减少了污染风险.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 无氧消化剂由于产量高和营养释放效率低,因此带来了挑战.
- 从废物流中开发可持续的肥料对农业和环境管理至关重要.
研究的目的:
- 开发和评估一种基于生物炭的新型肥料 (MAP@BRC),用于从生物气泥中缓释放的营养.
- 研究MAP@BRC.的营养释放模式和土壤增强机制.
主要方法:
- MAP@BRC是使用生物气残留生物炭 (BRC) 来从生物气泥中回收 (N) 和 (P) 来合成的.
- 在28天内分析了营养释放动力学.
- 进行了盆栽实验,以评估作物产量,水生产率和土壤特性.
主要成果:
- MAP@BRC证明了受控释放率:59%的总和50%的总在28天内.
- 与未受精控制组相比,作物产量和水生产率翻了一番.
- 土壤的好处包括改善营养水平,减少酸化,增加微生物种群,降低重金属风险.
结论:
- MAP@BRC是一种安全的,释放缓慢的肥料,具有协同作用的生物炭肥料效应.
- 它有效地利用牲畜垃圾,促进零废弃农业,并通过营养可用性和pH优化提高土壤肥力.
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