The bigger the grain is, the more length the nitrogen releasingtime.
颗粒愈粗，氮的热解释放时间延长。
2
The soils differed greatly in native K release process. The K releasingtime ranged from 100 to 600 minutes.
不同土壤钾的释放差异很大，钾的释放持续时间变幅为100～600分钟；
3
ALG microcapsule is a hydrophilic gel, as a drug carrier, it is easily leaked out encapsulated hydrophilic small molecular drugs, and cause a low encapsulate rate and a short releasingtime.