畜禽养殖废弃物中有机质、氮、磷丰富，通常用作肥料。
Being rich in the organic matter, nitrogen, and phosphorus, livestock wastes are usually used as a fertilizer for plantation.
通过随机抽样调查、判断抽样调查和部门单位走访，对浙江省畜禽养殖废弃物现状和区域差异进行了调查分析。
The current situation and regional differences of livestock and poultry waste in Zhejiang province were investigated and analyzed through random sampling, judgment sampling and department visiting.
通过随机抽样调查、判断抽样调查和部门单位走访，对浙江省畜禽养殖废弃物现状和区域差异进行了调查分析。
The current situation and regional differences of livestock and poultry waste in Zhejiang province were investigated and analyzed through random sampling, judgment sampling and department visiting.
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