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Effects of inorganic and organic amendment on soil chemical properties, enzyme activities, microbial community and soil quality in yellow clayey soil

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  • Zhanjun Liu
  • Qinlei Rong
  • Wei Zhou
  • Guoqing Liang

Abstract

Understanding the effects of external organic and inorganic components on soil fertility and quality is essential for improving low-yielding soils. We conducted a field study over two consecutive rice growing seasons to investigate the effect of applying chemical fertilizer (NPK), NPK plus green manure (NPKG), NPK plus pig manure (NPKM), and NPK plus straw (NPKS) on the soil nutrient status, enzyme activities involved in C, N, P, and S cycling, microbial community and rice yields of yellow clayey soil. Results showed that the fertilized treatments significantly improved rice yields over the first three experimental seasons. Compared with the NPK treatment, organic amendments produced more favorable effects on soil productivity. Notably, the NPKM treatment exhibited the highest levels of nutrient availability, microbial biomass carbon (MBC), activities of most enzymes and the microbial community. This resulted in the highest soil quality index (SQI) and rice yield, indicating better soil fertility and quality. Significant differences in enzyme activities and the microbial community were observed among the treatments, and redundancy analysis showed that MBC and available N were the key determinants affecting the soil enzyme activities and microbial community. The SQI score of the non-fertilized control (0.72) was comparable to that of the NPK (0.77), NPKG (0.81) and NPKS (0.79) treatments but significantly lower compared with NPKM (0.85). The significant correlation between rice yield and SQI suggests that SQI can be a useful to quantify soil quality changes caused by different agricultural management practices. The results indicate that application of NPK plus pig manure is the preferred option to enhance SOC accumulation, improve soil fertility and quality, and increase rice yield in yellow clayey soil.

Suggested Citation

  • Zhanjun Liu & Qinlei Rong & Wei Zhou & Guoqing Liang, 2017. "Effects of inorganic and organic amendment on soil chemical properties, enzyme activities, microbial community and soil quality in yellow clayey soil," PLOS ONE, Public Library of Science, vol. 12(3), pages 1-20, March.
    • Handle: RePEc:plo:pone00:0172767
    DOI: 10.1371/journal.pone.0172767
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    Citations

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    Cited by:

    1. Ekrem Ozlu & Gafur Gozukara & Mert Acar & Serdar Bilen & Emre Babur, 2022. "Field-Scale Evaluation of the Soil Quality Index as Influenced by Dairy Manure and Inorganic Fertilizers," Sustainability, MDPI, vol. 14(13), pages 1-16, June.
    2. Haiming Tang & Yilan Xu & Chao Li & Lihong Shi & Li Wen & Weiyan Li & Kaikai Cheng & Xiaoping Xiao, 2022. "Effects of Different Long-Term Fertilizer Management Systems on Soil Microbial Biomass Turnover in a Double-Cropping Rice Field in Southern China," Agriculture, MDPI, vol. 12(10), pages 1-10, October.
    3. Mugizi, Francisco M.P. & Matsumoto, Tomoya, 2021. "A curse or a blessing? Population pressure and soil quality in Sub-Saharan Africa: Evidence from rural Uganda," Ecological Economics, Elsevier, vol. 179(C).
    4. Gai, Xiapu & Liu, Hongbin & Liu, Jian & Zhai, Limei & Yang, Bo & Wu, Shuxia & Ren, Tianzhi & Lei, Qiuliang & Wang, Hongyuan, 2018. "Long-term benefits of combining chemical fertilizer and manure applications on crop yields and soil carbon and nitrogen stocks in North China Plain," Agricultural Water Management, Elsevier, vol. 208(C), pages 384-392.
    5. Jingnan Li & Haiyang Zhang & Li Zheng, 2023. "Influence of Organic Amendments Based on Garden Waste for Microbial Community Growth in Coastal Saline Soil," Sustainability, MDPI, vol. 15(6), pages 1-16, March.
    6. Guozhu Ma & Shenghai Cheng & Wenli He & Yixuan Dong & Shaowu Qi & Naimei Tu & Weixu Tao, 2023. "Effects of Organic and Inorganic Fertilizers on Soil Nutrient Conditions in Rice Fields with Varying Soil Fertility," Land, MDPI, vol. 12(5), pages 1-17, May.
    7. Jingnan Li & Xiangyang Sun & Suyan Li, 2020. "Effects of Garden Waste Compost and Bentonite on Muddy Coastal Saline Soil," Sustainability, MDPI, vol. 12(9), pages 1-13, April.
    8. Qin Zhang & Yutao Peng & Jingxin Wang & Longcheng Li & Danjun Yao & Aihua Zhang & Wenhua Wang & Shengjian Kuang & Heng Liao & Qing Zhu & Bangxi Zhang, 2021. "Improving Ecological Functions and Ornamental Values of Traditional Pear Orchard by Co-Planting of Green Manures of Astragalus sinicus L. and Lathyrus cicera L," Sustainability, MDPI, vol. 13(23), pages 1-11, November.

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