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通过该区１９９４年土壤耕层养分普查，查明全区土壤严重缺钾。经过多点钾肥试验和大面积示范推广，证明施用钾肥有显著增产效果。本文就该区近年来钾肥试验、示范结果作一综述分析，以利提高钾肥利用率
Through the 1994 survey of soil topsoil in this area, it was found that there was a serious shortage of potassium in the soil of the whole area. After more potash tests and large-scale demonstration and promotion, it is proved that the application of potash fertilizer has significant yield increase effect. In this paper, potash fertilizer experiment in recent years in this area, a summary of the results for a review, in order to enhance the utilization of potash