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Effects of Garden Waste Compost and Bentonite on Muddy Coastal Saline Soil

Author

Listed:
  • Jingnan Li

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Xiangyang Sun

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Suyan Li

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

Abstract

In order to effectively utilize resources and improve the amelioration effect of coastal saline soil, we studied the effects of applying garden waste compost and bentonite on highly saline coastal soil. Four treatments were established: a nonamended control; application of 68 kg·m −3 of garden waste compost; application of 15 kg·m −3 of bentonite; and mixed application of 68 kg·m −3 of garden waste compost and 15 kg·m −3 of bentonite. The results showed that the soil salinity of the three treatments was significantly lower than that of the nonamended control. The desalination effect of the mixed application was the best, and the salinity in the 0–20 and 20–40 cm soil layers decreased to 3.95 g·kg −1 and 3.82 g·kg −1 , respectively. Application of both the garden waste compost alone and the mixed application significantly improved the physical and chemical properties of the soil. However, the mixed application had the best effect because of its ability to increase the total porosity, saturated hydraulic conductivity, and soil nutrient levels. The growth of Robinia pseudoacacia cv. Idaho in the mixed application treatment was also better than other treatments. Principal component analysis and comprehensive scores indicated that the addition of 68 kg·m −3 of garden waste compost and 15 kg·m −3 of bentonite was the optimal application.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:9:p:3602-:d:352002
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    References listed on IDEAS

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    2. Zhang, Tao & Wang, Ting & Liu, KS & Wang, Lixue & Wang, Kun & Zhou, Yan, 2015. "Effects of different amendments for the reclamation of coastal saline soil on soil nutrient dynamics and electrical conductivity responses," Agricultural Water Management, Elsevier, vol. 159(C), pages 115-122.
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    4. Jing Tong & Xiangyang Sun & Suyan Li & Bingpeng Qu & Long Wan, 2018. "Reutilization of Green Waste as Compost for Soil Improvement in the Afforested Land of the Beijing Plain," Sustainability, MDPI, vol. 10(7), pages 1-17, July.
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    Cited by:

    1. Rahul Datta & Jiri Holatko & Oldrich Latal & Tereza Hammerschmiedt & Jakub Elbl & Vaclav Pecina & Antonin Kintl & Ludmila Balakova & Maja Radziemska & Tivadar Baltazar & Petr Skarpa & Subhan Danish & , 2020. "Bentonite-Based Organic Amendment Enriches Microbial Activity in Agricultural Soils," Land, MDPI, vol. 9(8), pages 1-18, August.
    2. 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.

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