Effects of Dazomet Fumigation on Soil Phosphorus and the Composition of phoD-Harboring Microbial Communities

文献类型： 外文期刊

第一作者： Jin, Xi

作者： Jin, Xi;Huang, Bin;Yan, Dongdong;Wang, Quxia;Fang, Wensheng;Song, Zhaoxin;Cheng, Hongyan;Li, Yuan;Ouyang, Canbin;Cao, Aocheng;Yan, Dongdong;Wang, Quxia;Li, Yuan;Ouyang, Canbin;Cao, Aocheng;Han, Qingli

作者机构：

关键词： dazomet; high-throughput sequencing; phosphorus fractionation; phoD microbial community; phosphorus transformation

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2020 年 68 卷 18 期

页码：

收录情况： SCI

摘要： The soil phosphorus (P) cycle and P transformation are largely driven by the soil bacterial microbial community. However, little is known about the effects of dazomet (DZ) soil fumigation on soil P and soil microbial communities associated with P transformation. This research investigated P released from three farm soils as a result of DZ fumigation and changes in enzyme activity, gene abundance, and the encoding alkaline phosphatase PhoD microbial community. After DZ fumigation, we observed a briefly significant increase in the available P and the active P fractionation. The soil ALP activity, 16s rRNA abundance, and the phoD gene decreased significantly after DZ fumigation. The abundance and diversity of phoD-harboring microbes also decreased shortly after fumigation, increased significantly 14-28 days later, and then decreased again toward the end of the experimental period of 86 days. The shared OTUs between treatments became fewer with increasing time after fumigation. The changes in available P and the active P fractionation after DZ fumigation were significantly correlated with the abundance of the dominant phoD-harboring microbes. DZ fumigation promoted P mineralization in these farm soils and changed the composition of phoD-harboring microbial communities, which will benefit crops able to absorb and use P.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序