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Agricultural industry

Dairy Farm Waste Used as Organic Fertilizer Posing Risk of Environmental Contamination

Strategic Insights

— 2 min read

Research on the treatment of dairy farm waste in China has highlighted the potential risks of using dairy farm waste as organic fertilizer to farmland soil. The study, conducted by the Inner Mongolia University of Technology, suggests that the high phosphorus content in dairy farm waste may lead to environmental contamination of farmland soil and groundwater. The researchers used a novel approach to treat dairy farm waste by converting it into organic fertilizer, but found that the SQ5075 field management mode exhibited the highest total phosphorus content, posing a risk to soil improvement and crop cultivation.

Key Takeaways:

  • The rapid development of large-scale livestock breeding and poultry raising industries in China has led to the emergence of a novel approach to treating dairy farm waste as organic fertilizer.
  • The high phosphorus content in dairy farm waste may pose a risk of environmental contamination to farmland soil and groundwater.
  • The SQ5075 field management mode exhibited the highest total phosphorus content, which is conducive to the improvement of soil fertility.
  • The phosphorus content under SQ5025 was observed to be lower compared to the background value, resulting in continuous depletion of phosphorus, which is detrimental to soil improvement and crop cultivation.
  • The total phosphorus content in soil solution under SQ5050 was the largest, increasing the risk of soil phosphorus leaching.
  • The study primarily focused on the alterations in the concentrations of various phosphorus forms in soil and the occurrences of soil phosphorus leaching and depletion.
  • The research was funded by the Science and Research Plan Project of Tongliao, Inner Mongolia Autonomous Region Colleges and Universities Young Technology Talent Support Scheme, and Inner Mongolia Autonomous Region Science and Technology Plan.

Statistics:

  • The study found that the SQ5075 field management mode exhibited a total phosphorus content of 30.52 mg/kg, which is conducive to the improvement of soil fertility [1].
  • The phosphorus content under SQ5025 was observed to be 20.15 mg/kg, which is lower compared to the background value [1].
  • The total phosphorus content in soil solution under SQ5050 was 41.85 mg/kg, increasing the risk of soil phosphorus leaching [1].

Sources:

  • NewsRx. Findings in the Area of Dairy Farms Reported from Inner Mongolia University of Technology (The Vertical Distribution of Phosphorus Nutrient Salts In Large-scale Dairy Farming). Agriculture Week. August 7, 2025; p 1281.
  • The Vertical Distribution of Phosphorus Nutrient Salts In Large-scale Dairy Farming. Thermal Science, 2025;29:2069-2076.
  • Ying Mei, Inner Mongolia University of Technology, School of Energy and Power Engineering, Hohhot, People's Republic of China.
  • Yan-Li Li, Jian-Guo Liu, Jiang Li, Hang Zhou, Ting Zhang, Li-Na Jiao, Peng Xue, Ya-Jun Wang, Guo-Qing Li, Li-Peng Yang, Xiao-Song He, and Li-Peng Cui.

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