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Rabbit Manure Compost for Seedling Nursery Blocks: Suitability and Optimization of the Manufacturing Production Process

Author

Listed:
  • Rangling Li

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Hongying Wang

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Enze Duan

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Jiayu Fan

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Liangju Wang

    (College of Engineering, China Agricultural University, Beijing 100083, China)

Abstract

Using rabbit manure to prepare growing media is an effective method to solve environmental pollution and realize resource utilization. The solution to rabbit manure management is the composting process which could produce compost suitable for seedling nursery blocks, which could improve transplanting efficiency and seedlings’ survival rate. Seedling nursery blocks were obtained by mixing rabbit manure compost, vermiculite, rice straw, and peat. The effect of cold pressing parameters, including moisture content (25–45%), binder content (1–5%), molding compression ratio (2.5–4.5:1), and strain maintenance time (0–120 s), were investigated on blocks quality (i.e., ventilatory porosity, relaxation density, compressive resistance, and specific energy consumption) through a general rotation combined experiment. These results showed there were significant interaction effects between molding compression ratio and moisture content, moisture and binder content, binder content and strain maintenance time, and molding compression ratio and binder content on block quality. The optimal parameters for manufacturing blocks were that the molding compression ratio, moisture content, binder content, and strain maintenance time were 4:1, 33.5%, 3.1%, and 60 s, and the relaxation density, ventilation porosity, and specific energy consumption were 363.31 kg/m 3 , 18.72%, and 0.44 J/g, which could achieve emergence performance.

Suggested Citation

  • Rangling Li & Hongying Wang & Enze Duan & Jiayu Fan & Liangju Wang, 2022. "Rabbit Manure Compost for Seedling Nursery Blocks: Suitability and Optimization of the Manufacturing Production Process," Agriculture, MDPI, vol. 12(12), pages 1-17, December.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:12:p:2156-:d:1003664
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    References listed on IDEAS

    as
    1. Lu Zhang & Xiangyang Sun & Yun Tian & Xiaoqiang Gong, 2013. "Composted Green Waste as a Substitute for Peat in Growth Media: Effects on Growth and Nutrition of Calathea insignis," PLOS ONE, Public Library of Science, vol. 8(10), pages 1-18, October.
    2. Li Ma & Li Sha & Xingxin Liu & Shuting Zhang, 2021. "Study of Molding and Drying Characteristics of Compressed Municipal Sludge-Corn Stalk Fuel Pellets," Energies, MDPI, vol. 14(11), pages 1-15, May.
    3. Tianyou Chen & Honglei Jia & Shengwei Zhang & Xumin Sun & Yuqiu Song & Hongfang Yuan, 2020. "Optimization of Cold Pressing Process Parameters of Chopped Corn Straws for Fuel," Energies, MDPI, vol. 13(3), pages 1-21, February.
    4. Rangling Li & Hongyun Hao & Hui Sun & Liangju Wang & Hongying Wang, 2022. "Composted Rabbit Manure as Organic Matrix for Manufacturing Horticultural Growing Media: Composting Process and Seedling Effects," Sustainability, MDPI, vol. 14(9), pages 1-16, April.
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