Livestock Wastewater Becomes a Resource: New Technology Boosts Sweet Potato Yield and Profit
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The Livestock Research Institute of the Ministry of Agriculture, through industry-government-academia collaboration, conducted trials applying anaerobically treated swine wastewater (biogas slurry) to sweet potato fields. Results showed that the 'full wastewater' treatment, using only biogas slurry with potassium supplementation, achieved a yield 1.4 times that of the full organic fertilizer treatment, increasing profit by approximately NT$23,000 per 0.1 hectare. The technology turns livestock waste into a resource, offering both environmental and economic benefits.