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以Ｋ２ＳＯ４和ＫＣＩ做对照，用两年盆栽试验研究有机钾肥对西瓜、辣椒、烟草产量和品质的作用。结果表明，在同一氮磷肥用量水平下，施用钾肥的西瓜产量及品质均比不施钾肥的好，尤其是有机钾肥（Ｋ２）的作用突出；辣椒在施用有机钾肥后，产量提高，昂质改善，随施用量的增加，其ｖＣ含量呈直线上升，粗脂肪也增加；有机钾肥对烟草生长也有促进作用。有机钾肥做为、种新的钾肥可以代替Ｋ２ＳＯ４、ＫＣＩ的作用。
K2SO4 and KCI as a control, pot experiment with two years to study the effect of organic potassium fertilizer on watermelon, pepper, tobacco yield and quality. The results showed that under the same level of N and P fertilizers, the yield and quality of watermelon were all higher than those without K fertilizer, especially the effect of K2SO4. The yield of pepper increased with the improvement of quality , With the increase of application amount, the vC content increased linearly and crude fat also increased. Organic potassium fertilizer also promoted tobacco growth. Organic potassium as a new species of potash can replace K2SO4, KCI role.