Potassium chloride is suitable for use in combination with alkaline fertilizers
Potassium oxide is a physiologically acidic fertilizer, and when applied to soil over the long term, attention should be paid to applying it together with alkaline fertilizers such as lime to prevent soil acidification; it is most suitable for application on calcareous and alkaline soils. Potassium chloride must not be applied on saline soils, as it will worsen salt damage. Potassium chloride contains chloride ions, and chloride ions are related to crop quality. At present...
Potassium oxide is a physiologically acidic fertilizer, and when applied to soil over the long term, attention should be paid to applying it together with alkaline fertilizers such as lime to prevent soil acidification; it is most suitable for application on calcareous and alkaline soils. Potassium chloride must not be applied on saline soils, as it will worsen salt damage.
Potassium chloride contains chloride ions, and chloride ions are related to crop quality. At present, no clear conclusion has been reached on the effect of chlorine on certain cash crops. Generally, on chlorine-sensitive crops such as tobacco, potato, sugarcane, tea plant and others, it should be applied with caution, with attention paid to controlling the rate; it is best applied early as a base fertilizer, combined with irrigation so that the chlorine is leached into the deeper soil layer, thereby reducing chlorine damage.
Potassium chloride, like potassium sulfate, can be used as a base fertilizer and a topdressing fertilizer, but it is not suitable as a seed fertilizer, because chloride ions have an inhibitory effect on seeds and seedlings. In addition, the application rate at which the economic benefit of potassium fertilizer is greatest should be determined.