某地含钾火山岩释钾能力实验研究

Experimental Researches on K Releasing Ability of Potassium Bearing Volcanic Rocks Somewhere

某地含钾火山岩储量大，易开采，主要矿石为沸石、透长石、黑云母以及玻璃质等，平均含氧化钾３３１％．通过初步实验，速效钾含量达到了供钾潜力的中～极高水平，可直接农用，代替部分化肥，在喀斯特红土地区。

The potassium bearing volcanic rock somewhere which consists of the ores including zeolite,glassy feldspar,biotite and glass matrix is rich in the ore reserve and is easy to mine.Its average grade of K 2O is 3 31%.Through experiment,its content of quick acting potassium has been achieved from medium to extremely high level of K supplying potentiality.So it can be used directly in agriculture.It has the best effect especially in Karst red soil zone.