红辉沸石经铵型改性后,对K+的吸附容量从1.70mg/g提高到4.98mg/g,以不同粒度改性红辉沸石作为复合肥的添加剂,随沸石添加量增加和粒度变细,吸附K+量增加。当改性红辉沸石的添加量为10%、粒度为74μm时,能较好地吸附和固定钾,使钾缓慢释放,延长肥料的肥效,同时肥料不结块,降低成本,有利于贮藏,改善土壤环境。 Stereolithium ammonium modified, the K + adsorption capacity increased from 1.70mg / g to 4.98mg / g, with different particle size modified bauhinite as a compound fertilizer additives, with the increase in the amount of zeolite and the particle size becomes thinner , K + adsorption increased. When the modified bauhinite is added in an amount of 10% and the particle size is 74μm, potassium can be adsorbed and fixed well, releasing potassium slowly and prolonging the fertilizer efficiency. At the same time, the fertilizer does not block and reduce costs, which is favorable for storage, Improve the soil environment.