MILLET (BRASSICA NAPUS L.) ROTATION MODEL PROMOTED THE YIELD OF MILLET BY IMPROVING THE FUNGAL COMMUNITY STRUCTURE IN DRYLANDS IN CHINA

文献类型： 外文期刊

第一作者： YU, G. H.

作者： YU, G. H.;LIU, P. C.;LU, G. L.;GUO, A. Q.;HAO, H. B.;LI, M. Z.;YU, G. H.;LIU, P. C.;LU, G. L.;GUO, A. Q.;HAO, H. B.;LI, M. Z.;ZHOU, J.

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关键词： Setaria italica; green manure; crop rotation model; soil nutrient; ITS pyrosequencing

期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.816； 五年影响因子：0.896 ）

ISSN： 1589-1623

年卷期： 2022 年 20 卷 3 期

页码：

收录情况： SCI

摘要： Plant-crop rotation model plays an important regulatory role in effectively avoiding the occurrence of continuous cropping obstacles in drylands. However, it is not clear how fungal communities change in soils with some different rotation models. To solve this question, we determined the soil nutrient contents, and compared the composition of fungi from soils (0-20 cm) using fungal ITS pyrosequencing techniques. We also tested different crop rotation regimes, including Triticum aestivum L. and millet rotation (TaSi), small rye (Triticale Secalotriticum) and millet rotation (TsSi), one season of leisure (no any crop) and one season of millet (Si), rape (Brassica napus L.) and millet rotation (BnSi). The results showed that BnSi significantly improved soil available potassium contents, the activity of soil catalase, and yields of Setaria italica, while reduced soil Alkali-hydrolyzed nitrogen contents compared with other three groups. Fungal alpha-diversity index in BnSi was the highest. The relative abundances of Ascomycota in BnSi (61.53%) and TsSi (62.6%) were higher than that in Si (58.65) and TaSi (55.67%), while Basidiomycota exhibited the opposite trend. Available potassium and organic matter were significant factors affecting fungal communities, explaining 61.4% of total variation. Our findings shed new light on the response of the soil fungal communities to long-term green manure regimes.

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