文献类型：专利

英文题名：Coating agent for slow release fertilizer, comprises chitosan, amylum, vinol, cross-linking agent, glycerol, tween and ammonium chloride in specific weight percentage

作者：CHEN Q;ZHANG W;LU W

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN1208289-C

公开日：2005-06-29

语种：英文

收录：DERWENT

摘要：NOVELTY - The invention relates to an enveloping agent applied to sustained release fertilizer, using chitosan 1-10wt%, amylum 30-40wt%, vinol 45-55wt%, cross-linking agent 2-10wt%, glycerol 6-8wt%, tween 1-3wt% and NH4Cl 0.5-1.5wt% as main raw materials, reacting for 1-2 hours at pH value of 2-5 and at 85-95 deg.C to make it. Its preparation is simple and its raw material source is wide and it has no environmental pollutions.