生物量(生态学)
修正案
肥料
生长素
光合作用
营养物
化学
钾
农学
木灰
植物
园艺
生物
有机化学
政治学
法学
生物化学
基因
作者
Ruibao Wang,Xinan Zongguo,Ripeng Hu,Jian Wu,Yongxian Xu,Yu Zhiyong,Liping Yang,Guoyong Yan,Jiahong Liu,Yali Zhang
出处
期刊:Chemosphere
[Elsevier]
日期:2024-04-04
卷期号:357: 141910-141910
标识
DOI:10.1016/j.chemosphere.2024.141910
摘要
Growing quantities of biomass ashes (phyto-ashs) are currently produced worldwide due to the increasing biomass consumption in energy applications. Utilization of phyto-ash in agriculture is environmentally friendly solution. However, mechanisms involving the coordination of carbon metabolism and distribution in plants and soil amendment are not well known. In the present study, tobacco plants were chemically-fertilized with or without 2‰ phyto-ash addition. The control had sole chemical fertilizer; for two phyto-ash treatments, the one (T1) received comparable levels of nitrogen, phophorus, and potassium from phyto-ash and fertilizers as the control and another (T2) had 2‰ of phyto-ash and the same rates of fertilizers as the control. Compared with the control, phyto-ash addition improved the soil pH from 5.94 to about 6.35; T2 treatment enhanced soil available potassium by 30% but no difference of other elements was recorded among three treatments. Importantly, bacterial (but not fungal) communities were significantly enriched by phyto-ash addition, with the rank of richness as: T2 > T1 > control. Consistent with amelioration of soil properties, phyto-ash promoted plant growth through enlarged leaf area and photosynthesis and induced outgrowth of lateral roots (LRs). Interestingly, increased auxin content was recorded in 2
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