摘要
采用水浸泡法对 3种有机高聚物包膜控释肥Osmocote 、MEISTER 和山东农业大学包膜肥试样的养分溶出特征进行了系统比较测定 ,研究了 3种控释肥初期溶出率、微分溶出率和养分释放期的特征与差异 ;研究了温度对3种包膜控释肥氮素释放率与释放期的影响 ;通过土壤施用包膜控释肥的盆栽试验 ,测定水稻全生育期的吸氮量和产量。并将 2种测定方法综合分析 ,用于评价不同控释肥的作用适应性 。
Three kinds of controlled release fertilizers, Osmocote (ACRF), MEISTER (JCRF) and the sample of Shandong Agricultural University (CCRF), coated by organic polymer, were used in this study. The soluble properties of fertilizers were tested and compared in water. Contrasts of three fertilizers on preliminary solubility, differential solubility and N released period. The effect of temperature on the rate and period of fertilizers' N release was discussed. Results were evaluated comprehensively, in order to appraise the adaptability of these three CRFs to crops.
出处
《植物营养与肥料学报》
CAS
CSCD
北大核心
2002年第1期44-47,共4页
Journal of Plant Nutrition and Fertilizers
基金
农业部科技跨越计划 ( 2 0 0 8)
