The application of straw returning combined with low-temperature degrading microbial inoculant M44 in cold and arid regions promotes the efficient decomposition of returned straw through the hierarchical interaction mechanism of “key microorganisms—bacterial community structure—extracellular enzyme activity—straw degradation”
Qinggeer Borjigin
To address the bottleneck problem of slow decomposition of returned maize straw under low-temperature constraints in the cold and arid regions of northern China, this study systematically explored the microbial decomposition-promoting mechanism of microbial inoculant M44 combined with three straw returning methods: deep plowing (DPR), deep scarification and mixing (SSR), and no-tillage mulching (NTR), by integrating field tillage and in-situ micro-zone degradation experiments. The results showed