High potash water solubles


Shopped around a bit over the past few days for a water soluble form of potash. Looked at Potassium Nitrate, but my soil is almost excessive in Nitrogen so did not want to add any more nitrogen. Was able to find water soluble sulfate of potash (46% K  I believe), but am wondering about the sulfur content in it.
Would the sulfur act as a beneficial fungicide in the mix?
Would the sulfur content cause pH changes to the soil?
Anyone using this form of potassium on their AG's an if so any comments?
The product in question is intended for commercial tomato growers I believe.
Can anyone recommend a high potassium water soluble fertilizer containing no nitrogen?
 
Glenn


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