ArticleFrontiers in microbiology2026
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".
Article in Frontiers in microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
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 that different straw returning methods combined with inoculant M44 could effectively overcome low-temperature limitations, significantly increasing the straw degradation rate by 2.33-9.81 percentage points and shortening the half-life by 20.7-62.8 d. The core mechanism was that the "tillage-inoculant" interaction regulated the soil microenvironment, directionally shaped and enriched key functional microbial taxa with degradation ability (such as
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