When the fertilizer particle contacts the moist soil , the fertilizer will absorb the vapor , and water dissolves nutrients begin to spread but constantly slow through the capillary on the capsule 当肥料颗粒接触潮湿土壤时，肥料便会吸收水蒸气，于是水溶养分开始透过包衣上的微孔缓慢而不断地扩散。
Coating medium spraying , drying and exhauting can be carried out simutaneously for film - coating , the whole processing can be completed only in 1 - 2 hours and for sugarcoating , in 4 - 5 hours 薄膜包衣能连续并同时进行喷洒包衣介质、干燥、排风，只需1 - 2小时就可完成全部包衣工序，糖衣包衣只需4 - 5小时即可完成。
Under the condition of indoor storage the storage period of one month had not significant effect on germinative rate , but the storage period beyond two months , could have very significant effect 在一般室内贮藏条件下，贮藏期1个月对小麦包衣种子的发芽率影响不显着， 2个月以上，对包衣种子发芽率影响极显著。
