结果表明：供试土壤施钾后不仅提高耕层土壤速效钾含量，而且也很快向缓效钾方向转化，转化量随钾肥用量的提高而增大。
The results showed that the application of potash could raise both the contents of the fast available K and the slowly-released K in soil.
指出了气体供氧体的缺陷，固体和液体供氧体的特点，以及需要严格控制供氧体的用量。
It also points out the weakness of that body in gas state and advantages in solid or liquid state as well as the severe controlling of its use level.
只要输入您的地方性规费和使用量来计算总到期。所有的信息都存储在应用程序供以后使用。
Just enter your local fees and amount used to calculate the total due. All the info is stored in the app for later use.
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