摘要
我国钾资源贫乏，目前使用的钾肥主要靠国外进口．通过物理、化学和生物的方法，对云母类矿石进行活化而制成云母类矿物钾肥，不失为解决我国南方土壤钾素缺乏问题的一条有效途径．本文对中科院地化所提供的通过活化处理制取的云母类矿物钾肥进行了肥效试验．结果表明，施用云母类矿物钾肥与施用等钾量的氯化钾相比，无论是作物的吸钾能力，还是土壤的供钾能力．前者都比后者显著提高．因此，开发云母类矿物钾肥资源具有广阔的前景．
There is poor in potassium resources in our country, and the application of potassium fertilizer at present mainly relieson import. But there still exists a effective way to settle the problem of potassium deficiency of soils in the souther part of China, which is to activate micaceous mineral and make it into micaceous mineral potassium fertilizer by physical, chemical and biological methods. The results of the fertilizer experiment show that, the absorption capaloilty of plant and the potassium supplying capability of soil being fertilized with micaceous mineral potassium fertilizer aresignificantly higher than that of KCL at the same potassium amount. Therefore, the exploitation of micaceous mineral potassium fertilizer resources will have vast vistas.
关键词
云母类
矿物钾肥
施用效益
micaceous mineral potassium fertilizer, effect of fertilization, potassium suppling capability, residual effect
