春茶缓释复混肥的制备及其缓释效应室内模拟  

Preparation of slow-release compound fertilizer of spring tea and evaluation of its slow-release effect of indoor simulation

作　　者：王颖[1] 许美真[2] 颜桂炀[1,3] 刘伟[1] 黄希[1] 

机构地区：[1]宁德师范学院化学系,福建宁德352100 [2]福建师范大学化学与化工学院,福建福州350007 [3]绿色能源与环境催化福建省高等学校重点实验室,福建宁德352100

出　　处：《亚热带农业研究》2015年第3期194-197,共4页Subtropical Agriculture Research

基　　金：福建省科技厅产学合作重大项目(2013H6006);福建省教育厅科技项目(JA13329);宁德市科技局项目(20130125);宁德师范学院青年专项基金(2014Q40);国家级大学生创新创业训练计划项目(201410398011)

摘　　要：分别以钾长石为原料所合成的13X分子筛和4A分子筛为缓释载体,将其与能提供氮源、钾源及磷源的肥料复混,辅以粘结剂,制得3种适合早春茶叶施用的缓释沸石复混肥。采用传统的水浸泡法对所制备的3种沸石复混肥进行初步的缓释效应评价。结果表明,2种分子筛对肥料均有一定的缓释作用,可作为肥料的缓释载体;所得3种沸石复混肥都具有一定的缓释效应,其中以13X分子筛为载体的沸石复混肥Ⅰ缓释效果最佳,在养分释放速率上达到了国家标准,可在早春茶叶萌芽前施用。The 13 X and 4A molecular sieves synthesized by potassium feldspar as were regarded as slow-release carriers,then the fertilizers of nitrogen,potassium and phosphorus were compounded with it,and binders were added in the compound fertilizer.Thereby,three kinds of slow-releasable zeolite-based fertilizer were produced for early spring tea. The traditional water-soaked method was used to evaluate the slow-release effect preliminary about the three zeolite-based compound fertilizers. Two kinds of molecular sieve carrier possessed a slow-release ability for fertilizers,all the three kinds of compound fertilizer had slow-release effect. The fertilizer No. 1 assumed the best slow-release effect,and the carrier was 13 X zeolite molecular sieve in it. The fertilizer No. 1 reached the national standard basically. It can be used for spring tea at embryonic stage. The 13 X and 4A molecular sieves that synthesized by potassium feldsparas were regarded as slow-release carriers,then the fertilizers of nitrogen,potassium and phosphorus were compounded with it,and binders were added in the compound fertilizer. Thereby,three kinds of slow-releasable zeolite-base fertilizer were produced for early spring tea. The traditional water-soaked method was used to evaluate the slow-release effect preliminary about the three zeolite-base compound fertilizers. The results showed,two kinds of molecular sieve carrier possessed a slow-release ability for fertilizers,the three kinds of compound fertilizer had slow-release effect all. The fertilizer No. 1 assumed the best slow-release effect,and the carrier was 13 X zeolite molecular sieve in it. The fertilizer No. 1 reached the national standard basically. It can be used for spring tea in embryonic stage.

关 键 词：春茶 沸石复混肥 缓释载体 养分释放量 缓释效应 

分 类 号：TQ449.1[化学工程—化学肥料工业]