Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Comparisons of Soil C–N Pools and Microbial Communities Among Saline–Alkali, Straw-Returning, and Conventional Farmlands in the Ningxia Yellow River Irrigation District, China

Huirong Zhang, Tianyi Chen, Chuhan Yang, Xuantong Zheng, Man Wang, Taotao Zhan, Xuxin Ding, Ping Wang, Qingqian Yao, Fang Wang, J T Liu

Agronomy · 2026

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Summary

The Ningxia Yellow River Irrigation District in China has long been influenced by flood irrigation and intensive fertilizer input under its particular geological and climatic constraints, and this region is characterized by low soil organic matter, poor nutrient status, low permeability, high pH, and widespread salinization. This cross-sectional field study compared the soil physicochemical properties and microbial communities among saline–alkali soil (SAS), straw-returning farmland (SR), and traditionally managed farmland (FM). EC was higher in SAS (approximately 4.21 dS·m−1) than in SR and FM (approximately 0.23 and 0.30 dS·m−1, respectively), whereas TOC and C/N were higher in SR (approximately 1.00% and 10.58, respectively) than in FM (approximately 0.78% and 8.69) and SAS (approximate

Source type
Peer-reviewed study
DOI
10.3390/agronomy16080833
Catalogue ID
SNmojyxup3-duk5ly
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