首页|期刊导航|中国农业科学（英文版）|The Production of Organic-Inorganic Compound Film-Coated Urea and the Characteristics of Its Nutrient Release
中国农业科学（英文版）2009，Vol.8Issue(6)：703-708,6.
The Production of Organic-Inorganic Compound Film-Coated Urea and the Characteristics of Its Nutrient Release
The Production of Organic-Inorganic Compound Film-Coated Urea and the Characteristics of Its Nutrient Release
摘要
Abstract
The effect of different concentrations of natural macromolecular compound on the characteristics of nutrient release in the membrane materials of organic-inorganic compound film-coated urea was discussed,and the optimal concentrations for better nutrient release was proposed.The characteristics of nutrient release of film-coated urea were evaluated by soil column leaching experiment.Organic-inorganic compound film-coated urea showed good characteristics of nutrient release,which could be well simulated by Logistic curve.The two parameters in this curve,a and r,can be used to present nutrient release of film-coated urea,and followed the order of B ＞ C ＞ A and C ＜ B ＜ A,respectively,indicating that the release was stronger with the increasing concentration of natural maeromolecular compound in the membrane,which implied better controllability of nutrient release.The concentration of 5% of natural macromolecular compound showed better characteristic of nutrient release and can be utilized as a membrane material combined with inorganic mineral powders to develop film-coated slow-release fertilizer.关键词
organic-inorganic compound/film-coated urea/nutrient release characteristicsKey words
organic-inorganic compound/film-coated urea/nutrient release characteristics分类
农业科技引用本文复制引用
ZOU Hong-tao,WANG Yao-sheng,SONG Hao-wen,HAN Yan-yu,YU Na,ZHANG Yu-ling,DANG Xiu-li,HUANG Yi,ZHANG Yu-long..The Production of Organic-Inorganic Compound Film-Coated Urea and the Characteristics of Its Nutrient Release[J].中国农业科学（英文版）,2009,8(6):703-708,6.基金项目
The study was supported by a key project of Liaoning Province (2006215005) and China Ministry of Education (209032). （2006215005）
