探索生物炭和鱼池沉积物的潜力,改变土壤分数和可用性
Mohsin Mahmood1,2, Yunting Wang1,2, Waqas Ahmed1,2
1Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, China.
Frontiers in plant science
|August 28, 2023
概括
生物炭 (BR) 和鱼池沉积物 (FPS) 结合起来,通过提高酶活性,有效地增加了土壤 (P) 的可用性. 这提高了玉米P的吸收和使用效率,改善了土壤健康和生态系统服务.
科学领域:
- 土壤科学 土壤科学
- 农业学是一种农业学.
- 环境科学 环境科学
背景情况:
- 土壤 (P) 的可用性通常是有限的,应用的P经常会固定在土壤中.
- 生物炭 (BR) 和鱼池沉积物 (FPS) 在缓解P固定和增强P可用性的有效性尚不清楚.
研究的目的:
- 为了确定BR,改性生物炭 (MBR) 和FPS作为部分肥料替代品的最佳比例.
- 评估这些修正案对土壤P分数和玉米P吸收的影响.
主要方法:
- 使用玉米进行了一项实验,使用FPS,BR和MBR的各种组合作为治疗方法.
- 分析了土壤的无机 (Pi) 和有机 (Po) 分数,使用修改的Hedley方法和Tiessen和Moir分化.
- 测量了吸收和酶酶活性.
主要成果:
- 与对照组相比,同时使用BR和FPS显著增加了不稳定性,中度不稳定性和残留P分数.
- 在FPS和BR/MBR联合治疗中观察到最大P吸收和酸酶活性.
- 较高度的金属如Ca,Zn和Cr与不稳定的P分数负相关.
结论:
- 结合BR和FPS的应用通过增加酶酶活性来提高土壤P的可用性.
- 最佳的BR和MBR与FPS的比率提高了玉米的P吸收和使用效率.
- 这些修订有助于保持土壤生态系统的功能和服务.
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