potassium oxide content:48-49%
1、Initial release rate of Nutrient is less than 1%（25℃，24h）.
2、Longevity:3-4Month, 6Month, 12Month,2Year.
3、Suitable for not resistant to chlorine but need for potassium supplement crops, such as trees, tobacco, flowers, potatoes, etc.
4、Greatly improve the crop yield and quality .
5、Exclusive production in China