泡腾颗粒药肥中除草剂的释放特性.pdf

斜垒= 研究论文(Articles) 科技导报2011。29(26) 泡腾颗粒药肥中除草剂的释放特性 化全县1,2胡斌1，汤建伟1。刘咏1。王立锁1 1．郑州大学化工与能源学院国家钙镁磷复合肥技术研究推广中心，郑州450001 2．中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室，南京210008 摘要为提高颗粒药肥中除草剂的释放性能，制备了具有泡腾特性的除草药肥颗粒，以亚甲基蓝比色法评价其泡腾特性，研究了 除草药肥颗粒中苯噻酰草胺和苄嘧磺隆的释放过程。结果表明。颗粒药肥具有显著的泡腾作用。苯噻酰草胺和苄嘧磺隆释放平衡 性达到极显著水平(PO．001)。释放速率由液膜扩散和颗粒内扩散联合控制。 关■词颗粒药肥；泡腾；苯噻酰草胺；苄嘧磺隆；释放动力学 文蕾标识码A doI 1．26．003 中圈分类号TQ449+．1。TQ450．6 10．39814．issn．1000—7857．201 inFertilizer—herbicideGranuleswith ReleaseKineticsofHerbicide EffervescentCharacteristics HUA Binl，TANGJianweil，LIU Lisu01 Quanxianl‘HU Yon91，WANG 1．NationalCentre on and Fenilker Calcium,Magnesium,PhosphateCompound Technology, ofResearchPopularization SchoolChemical and Energy,ZhengzhouUniversity,Zhengzhou450001，China of Engineering and Soil A 2State Soil Sustainable Science，Chinese KeyLaboratoryof Agriculture，Instituteof cademyof 210008,China to rate．J111e ne witheffervescent wag increasetheherbiciderelease Ab咖鼍m fertilizer—herbicide granule agentcoatingprepared ofthe aremarkable Wasevaluatedwiththe blue method． effervescencygranuleenjoys performance，which methylenespectrophotometrie and the resultsshowthatthe revealedthereleasekineticsofmefenacet ‰experiments bensulfuron-methyl(BSM)ingranule．ne