| Effects of short term maize straw returning on soil Fungi diversity in cold and cool regions |
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| DOI：10.7606/j.issn.1000-7601.2018.03.18 |
| Key Words: straw returned fungal diversity high throughput sequencing dominant fungi |
| Author Name | Affiliation | | SA Ru-la | College of agriculture, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolia 028000, China | | YANG Heng-shan | College of agriculture, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolia 028000, China | | GAO Ju-lin | Career Technical College Inner Mongolia Agricultural University, Baotou, Inner Mongolia 014199, China | | ZHANG Li-juan | College of agriculture, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolia 028000, China | | ZHANG Yu-qin | College of agriculture, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolia 028000, China | | FAN Xiu-yan | College of agriculture, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolia 028000, China | | LI Chun-yan | College of agriculture, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolia 028000, China |
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| Abstract: |
| To explore the fungal community structure of maize straw returning to the field in the cold and cool area and its difference. The plate count agar (PCA) method and high throughput sequencing technology were used to determine the amount of fungi and study the community richness, diversity and community structure of 0～10, 10～20, 20～30 cm soil fungi under different straw returning to the field, which included the conventional no straw amended treatments (CK), straw deep incorporation (SF) and rotary tillage with straw (XG) on soil in spring maize at silking. The results indicated that the cold area of maize straw returning have an important effect on soil fungal diversity. The number of fungi in maize straw returning to the field can be cultivated by SF＞XG＞CK; The dominant bacterial flora of soil fungi was changed after straw returning to the field. The dominant species in the soil of no straw amended treatments were Malassezia, Mortierella, Botrytis; The dominant species in the soil of rotary tillage with straw were Mortierella; The dominant species in the topsoil of straw deep incorporation were Guehomyces and Mortierella. The dominant species in the 20～30 cm of straw deep incorporation were Botrytis. Comprehensive analysis of Alpha fungi flora diversity, community composition abundance, RDA (Redundancy analysis) and flora similarity shows that, thefungal community was not different significantly in 0～20 cm soil layer of rotary tillage and straw deep incorporation with straw. The rotary tillage and straw-deep incorporation with straw could increase the abundance of 10～30 cm soil fungal abundance of fungal. |
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