Position: Home > Articles > Effects of Different Solutions on Nutrient Release of Compound Modified Mineral Coated Urea
Journal of Soil and Water Conservation
2011,25
(3)
68-72
不同水溶液条件对复合改性矿物包膜尿素养分释放的影响
作 者：
毋永龙;王新爱;李永胜;杜建军;李峰;聂继云
单 位：
中国农业科学院果树研究所;仲恺农业工程学院植物营养与新型肥料研究中心;深圳市芭田生态工程股份有限公司研究中心
关键词：
复合改性矿物包膜尿素;温度;pH;盐离子浓度;养分释放
摘 要：
以水为浸提溶液,研究了不同温度、pH和盐离子浓度条件对4种复合改性矿物包膜尿素养分释放的影响。结果表明,温度对复合改性矿物包膜尿素的养分释放速率有显著的影响,在15,25,35℃条件下,随着温度升高,水中养分溶出率均显著加快;盐浓度也是影响养分释放的重要因素,在5%,10%,20%尿素、氯化钾溶液中,随着尿素、氯化钾浓度的增大,复合改性矿物包膜养分释放速率明显降低;pH对复合改性矿物包膜尿素的养分释放的影响因包膜材料不同有所差异。
译 名：
Effects of Different Solutions on Nutrient Release of Compound Modified Mineral Coated Urea
作 者：
WU Yong-long1,WANG Xin-ai2,LI Yong-sheng2,DU Jian-jun2,LI Feng3,NIE Ji-yun1(1.Institute of Pomology,Chinese Academy of Agricultural Sciences,Xingcheng,Liaoning 125100; 2.Research Center for Plant Nutrition and New Fertilizer,Zhongkai University of Agricultural and Engineering,Guangzhou, Guangdong 510225;3.Research Center of Shenzhen Batian Ecotypic Engineering Co.,Ltd.,Shenzhen,Guangdong 518105)
关键词：
compound modified mineral coated urea;temperature;pH;salt concentration;nutrient release
摘 要：
Using water as extraction solution,the effects of different temperature,pH and salt concentration conditions on the nutrient release of four types of compound modified mineral coated urea(CMMCU) were studied.The results showed that temperature significantly affected the nutrient release of CMMCUs at 15,25,35 ℃.Nutrient dissolution rate was significantly accelerated along with the temperature increasing.Salt concentration was also an important factor affecting the nutrient release,with urea and potassium chloride concentration increased from 5% to 10%,and to 20% respectively,nutrient release rate from CMMCUs were significantly decreased.However,the influence of pH were varied due to different coating materials.
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