生物炭修正案通过改善细胞外酶活动和在重新种植的田间中的微生物群体组成来增加花生产量
Cheng Liu1,2, Shijie Shang1, Chao Wang1
1Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China.
Plants (Basel, Switzerland)
|April 23, 2025
概括
生物炭修正案,特别是当与肥料共同堆肥时,显著提高了花生产量和改善了土壤健康. 这些发现突出了生物炭的重要性.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 环境科学 环境科学
背景情况:
- 持续耕作会降解土壤,威胁到花生产量和质量.
- 生物炭可以增强土壤微生物群落和植物弹性.
- 关于生物炭在缓解土壤退化和改善花生生产中的作用的研究有限.
研究的目的:
- 调查木和玉米生物炭,有或没有猪共同堆肥,对花生产量和土壤特性的影响.
- 评估生物炭对土壤酶活动,微生物群落和花生脂肪酸概况的影响.
- 为了确定生物炭修正案在改善土壤质量和减少在连续种植花生下降解的有效性.
主要方法:
- 在Alfisol土壤上进行实地实验,采用生物炭 (20 t ha-1).
- 处理包括木生物炭 (WB),玉米生物炭 (MB),与猪一起共同堆肥的生物炭 (WBSC,MBSC) 和有机 (OM) 控制.
- 分析土壤质量,细胞外酶活性,花生生长,微生物丰富度,社区组成和脂肪酸含量.
主要成果:
- 与有机 (OM) 相比,使用生物炭堆肥处理 (WB,WBSC,MBSC) 的花生产量增加了18-23% .
- 生物炭堆肥处理改善了油酸含量4-5%,并减少了7-9%的烯酸;单独的生物炭没有显著的影响.
- 土壤细胞外酶活性和营养循环比率 (C:N,P) 在生物炭和生物炭堆肥应用时显著增加.
结论:
- 农作物残留生物炭,特别是当与肥料共同堆肥时,有效地提高了花生产量和质量.
- 生物炭修正案改善了土壤聚合,酶功能和真菌群落,有助于土壤健康.
- 生物炭显示出作为持续花生种植系统的可持续土壤修改的承诺.
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