The principle and process of producing potassium-nitrogen compound fertilizer and aluminium hydroxide from potash alum are studied. Some problems are solved through the pilot test.
利用四川某含钾岩石制得的钾明矾进一步制备硫酸型钾氮肥和氢氧化铝，从原理、工艺等方面进行探讨，并通过中试解决了工业化生产所出现的问题。
The nitrogen, phosphor, potassium and other trace elements added for necessary of plants, it can be multi-functional and efficient liquid compound fertilizer complex.
配以植物所需的氮、磷、钾和微量元素后，可成为多功能、高效的液体复合肥。
Nitrogen fertilizer and compound fertilizer are suitable for the seeding period, while compound fertilizer, phosphorus and potassium fertilizers are suitable for the period of root forming.
苗期适用氮肥及复合肥，块根形成期适用复合肥及磷钾肥。
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