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.
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