However, the long-term application of biogas fertilizer from pig manure was most significant in elevating soil nutrients.
但长期施用后对土壤养分提升最显著的为猪粪沼肥。But a great deal of manure and polluted water is drained, which can also pollute environment seriously.
但同时由于猪粪尿过度集中和冲洗水大量增加，也会对周围环境造成严重污染。Methods : The larval secretion of pig manure cultivated housefly was collected and added into culture liquid of the Ascaris eggs.
方法：从培养家蝇幼虫的猪粪中提取幼虫分泌物，制成虫卵培养液，观察培养液中猪蛔虫卵发育情况。Swine manure composting with straw, was operated with mechanical aeration and artificial turning and conducted at low air temperature.
研究机械强制通风、人工翻堆以及低温对猪粪堆肥的影响。There should not be manure left in the driveways that could contaminate other vehicles.
同样也不要让猪粪遗留在车道上，而污染其它车辆。More resistance patterns of coliform were found in topsoil from spots treated with high commercial manure.
结果表明，施用发酵猪粪和商品有机肥后小区土壤中的大肠菌群抗性模式明显增多。Placing the usual swine manure in the fields can increase the phosphorus content of the ground.
把普通的猪粪浇灌在农田里可以增加土壤中磷的含量。The compost experiment that taken pig manure and solid waste as material were conducted in this paper.
以猪粪与生活垃圾为堆肥原料进行了混合堆肥试验。The pig waste has high H2S content , short produce-gas time, unstable reactive process in anaerobic digestion process.
而猪粪H2S含量较高，产气量低且持续时间短，反应过程不稳定，易酸化。