Experiments for nutrient release of chitosan coated urea(CCU) were carried out to elucidate the effect of moisture on nutrient release characteristic of CCU.

• 探讨了土壤中水分对壳聚糖包膜尿素(CCU)养分释放特性的影响。结果表明:CCU具有很好的缓释效果,养分释放率与包膜内水蒸气压差呈线性关系;