1. [Effects of Long-term Straw Returning on Fungal Community, Enzyme Activity and Wheat Yield in Fluvo-aquic Soil]
- Author
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Lei, Ma, Yan, Li, Jian-Lin, Wei, Zi-Shuang, Li, Xiao-Lin, Zhou, Fu-Li, Zheng, Xiao-Bin, Wu, Li, Wang, Zhao-Hui, Liu, and De-Shui, Tan
- Subjects
Soil ,Nitrogen ,beta-Glucosidase ,Potassium ,Agriculture ,Phosphorus ,Alkalies ,Fertilizers ,Oxidoreductases ,Soil Microbiology ,Triticum ,Mycobiome ,Phosphates - Abstract
To illustrate the effects of long-term straw returning on the fungal community, soil enzyme activity, and crop yield in a fluvo-aquic soil area typical of the Huang-Huai-Hai Plain, a 10-year field experiment (established in 2010) located in Dezhou City, Shandong province, was performed, including three fertilization regimes (NF, no fertilization control; NPK, fertilization with chemical N, P, and K fertilizers; NPKS, straw returning combined with chemical N, P, and K fertilizers). This study aimed to explore the regulation mechanisms of fungal communities on soil fertility, enzyme activities, and crop yield by employing co-occurrence network and structural equation model analyses. Our results showed that long-term straw returning significantly improved soil nutrients, enzyme activity, and wheat yield. Compared with the NPK and NF treatments, soil organic matter (SOM) increased by 9.20% and 34.75%, alkali-hydrolyzed nitrogen (AN) increased by 12.03% and 39.17%, dehydrogenase (DHA) increased by 37.21% and 50.91%
- Published
- 2022