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所研究的缓释肥料以尿素为心核，研究包裹材料、粘结剂。包裹厚度对肥分释放速度的影响并检测其淋溶速率，潮解率及结块率。
The slow-release fertilizer researched urea as the nucleus, studying the packaging materials and adhesives. The influence of package thickness on the release rate of fertilizer and its leaching rate, deliquescence rate and caking rate were tested.