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针对钾长石高温煅烧能耗高的问题,在900°C下加入复方活化剂对钾长石进行降温煅烧,并对制得的活性钾肥肥效进行玉米盆栽试验和大田试验验证。结果显示,活化钾肥产品的水溶性钾含量明显提升,较未活化前增加26倍;在钾养分减少45%的条件下,活化钾肥的肥效与氯化钾相当,其淋溶钾损失减少,作物吸钾量提高。活化钾肥是实现“减量增效”的新型肥料。
In view of the high energy consumption of calcined potassium feldspar at high temperature, the compound activator was added at 900 ° C to calcine K-feldspar, and the fertility of the active K-fertilizer was tested in corn pots and field experiments. The results showed that the water-soluble potassium content of activated potassium fertilizer products increased significantly, compared with 26 times before activation; under the condition of 45% reduction of potassium nutrient, the activity of activated potassium fertilizer was equivalent to that of potassium chloride, Potassium absorption increased. Activated potash fertilizer is a new fertilizer to achieve “reduction and efficiency.”