Moreover,sewage sludge contains large amounts of nutritive elements which are necessary to plants growth such as organic matter and N,P,K etc,and has good fertilizer efficiency.
另外,城市污泥中有较多的有机物及植物生长所必需的营养元素,如N、P、K等,具有很好的肥效。
参考来源 - 不同菌种对污泥生物淋滤过程中重金属去除效果的比较研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The waste-water irrigation has brought considerable benefits of water and fertilizer efficiency to agricultural production.
因此，污水灌溉给农业生产带来了可观的水、肥效益。
This technology can reduce pesticides and chemical fertilizer pollution, to save irrigation water and to raise the fertilizer efficiency.
该技术能减少农药、化肥污染，节省灌溉用水和提高肥料利用率。
The study on systematic fertilization network nutrient diagnosis is the prerequisite for national fertilization and raising the fertilizer efficiency.
开展系统施肥网营养诊断研究是进行合理施肥、提高肥效的前提。
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