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Crucial Factor of Non-point Pollution(N&P) Control in Weihe River Basin——Study and Evaluation of Slow-Release Compound Fertilizers
Author(s): 
Pages: 44-47
Year: Issue:  7
Journal: Environmental Science and Management

Keyword:  non-point pollutionslow-release compound fertilizersWeihe;
Abstract: 通过对渭河流域主要污染源的分析发现,农业非点源污染是受纳水体N、P污染的主要来源,而化肥的大量施用且利用率低下是造成这一污染的主要原因,因此减小农业化肥的施用量,提高其利用率,从源头上降低流域内N、P排放是控制污染的关键。本文从以上角度出发,分析了缓释保水型复混肥的施用对非点源污染减排的重要意义,并且重点研究了缓释材料的制备机理及其应用开发。
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