生物炭会影响两种不同质地土壤中和的动态
Rajeev Kumar Gupta1, Monika Vashisht2, R K Naresh3
1School of Agriculture, Lovely Professional University, Jalandhar, 144001, Punjab, India. rajeev.30662@lpu.co.in.
Scientific reports
|March 20, 2024
概括
生物炭修正案显著改变了土壤中和的可用性. 米的生物炭增强了酸盐的含量,比木生物炭更多,同时两者都提高了含量.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 环境化学环境化学
背景情况:
- (N) 和 (P) 是作物生产必需的营养素,但农业土壤往往缺乏足够的固有供应.
- 生物炭 (BC) 修正案越来越多地被认为有潜力通过各种化学转化提高土壤中营养的可用性.
- 了解不同的生物炭类型和应用率如何影响N和P动态对于可持续农业至关重要.
研究的目的:
- 研究 (N) 和 (P) 在用米生物炭 (RSB) 和木木生物炭 (ACB) 修改的粘土土和粘土沙土中的转化.
- 为了评估不同生物炭应用率 (0,0.5和1.0%w/w) 对化期内土壤营养动态的影响.
主要方法:
- 进行了一项受控的土壤-生物炭化实验,使用两个不同的土壤质地:粘土泥和粘土沙.
- 用RSB和ACB对土壤进行了修改,分别为0,0.5和1.0% (w/w).
- 在潜伏期内,对N (NH4-N),N (NO3-N) 和总 (P) 的转化进行了监测.
主要成果:
- N (NH4-N) 随着时间的推移而减少,与未经修改的对照相比,在生物炭修改的土壤中消失的速度更快.
- 在这两种土壤类型中,与木生物炭 (ACB) 相比,草生物炭 (RSB) 显著增加了酸盐N (NO3-N).
- 在整个实验期间,RSB和ACB修改的土壤中的 (P) 含量始终较高.
结论:
- 生物炭修正,特别是RSB,可以有效地改善农业土壤中和的可用性.
- 生物炭和土壤质感的类型会影响N和P转换的动态.
- 这些发现突出了生物炭作为可持续的土壤修改剂的潜力,以提高作物营养.
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