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我国有机肥资源很多,最主要的是畜禽粪尿与作物秸秆,同时还有绿肥、饼粕、草木灰、污泥、生活垃圾与污水、熏土、海肥、农产品加工下脚料等等。据估算,全国每年来自农业内部的有机物质(粪尿类、秸秆类、绿肥类、饼肥类)为40亿吨,可提供氮磷钾养分5316万吨。来自农业以外的有机肥资源如城市生活垃圾约2亿吨、城市污泥0.2亿吨、肉类加工厂废弃物0.5-0.65亿吨等,有机肥资源的总养分量大约可以达到7000万吨。
There are many organic fertilizer resources in our country. The most important ones are animal manure excrement and crop stalks, as well as green manure, cakes, ash, sludge, household waste and sewage, smoked soil, sea manure, scraps of agricultural products and so on. It is estimated that the annual domestic organic matter (manure, straw, green manure, cake and fat) from the agricultural sector is 4 billion tons and can provide 53.16 million tons of nitrogen, phosphorus and potassium. Organic fertilizer resources from outside agriculture, such as about 200 million tons of municipal solid waste, municipal sludge 0.2 million tons, 0.5-0.65 million tons of meat processing plant waste, organic fertilizer resources, the total nutrients can reach about 70 million tons.