CAJ | 학술논문

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。
통과대위하류역주요오염원적분석발현,농업비점원오염시수납수체N、P오염적주요래원,이화비적대량시용차이용솔저하시조성저일오염적주요원인,인차감소농업화비적시용량,제고기이용솔,종원두상강저류역내N、P배방시공제오염적관건。본문종이상각도출발,분석료완석보수형복혼비적시용대비점원오염감배적중요의의,병차중점연구료완석재료적제비궤리급기응용개발。
The analysis on major pollution sources in Weihe River basin found that agricultural non-point pollution is the main source of water nitrogen（N） and phosphorus（P） pollution.Extensive application of chemical fertilizers and its low utilization rate are the main causes of this pollution.Therefore,reducing agricultural fertilizer applications,increasing utilization rate and decreasing N,P emissions are the crucial factors of pollution control.Based on above perspective,this paper analyzes the significance of slow-release compound fertilizer application in relation to reducing non-point pollution emission.The preparation mechanism and application development of slow-release materials are the emphasis of this study.