使用元素硫的生物炭pH值降低和使用堆肥或生物堆肥的生物激活
Ahmed Al-Rabaiai1, Daniel Menezes-Blackburn1, Said Al-Ismaily1
1Department of Soils, Water and Agricultural Engineering, Sultan Qaboos University, P.O. Box 34, Al-Khoud 123, Muscat, Sultanate of Oman.
Bioresource technology
|April 25, 2024
概括
元素硫有效地降低了生物炭的性,特别是在混凝土中. 这通过提高生育能力和微生物活动来改善干旱土地应用的生物炭质量.
科学领域:
- 土壤科学 土壤科学
- 环境科学环境科学
- 微生物学 微生物学
背景情况:
- 生物炭是一种土壤修改剂,具有干旱土地的潜力.
- 生物炭的高pH值可能会限制其应用.
- 元素硫和有机修订可以改变生物炭的特性.
研究的目的:
- 为了评估元素硫作为生物炭的pH值降低剂.
- 评估同时应用堆肥或菌堆肥的影响.
- 为了确定对干旱土地使用的生物炭化学和微生物特性的影响.
主要方法:
- 生物炭经过元素硫的处理,并与堆肥或杂质堆肥共同修改.
- 测量了生物炭的pH值,水溶性元素和基质诱导的呼吸.
- 使用测序分析了细菌社区结构和多样性.
主要成果:
- 元素硫显著降低了生物炭的pH值,当与合物结合时,降低幅度最大 (8.1至7.2).
- 水溶性元素度增加,呼吸受到了刺激,尤其是在混凝土中.
- 细菌的多样性发生了变化,堆肥/硫增加了香农指数,而虫提高了均性和公平性.
结论:
- 整合生物炭与元素硫和 (vermi) 堆肥是管理性的可行策略.
- 这种方法增强了生物炭的肥力和微生物活动,使其适合干旱土地应用.
- 基本硫氧化与特定的硫氧化细菌群体有关.
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