... chloride, magnesium chloride 0.8% and a small amount of chloride ions, water content below 2%. Potassium chloride from the ... soil acidification, on the other hand also promote the effective of phosphorus. However, avoid chlorine in saline soil and crops ... ), soil acidity. This will increase the activity of soil aluminum, iron solubility, increase the toxicity of the crop. Therefore, long-term use ...