Effect of potassium Nutrition on rape

Potassium and magnesium are two essential cations for all plants, and rape absorbs more potassium than phosphorus. Therefore, relying solely on the natural supply of soil, often can not meet its needs, it is necessary to improve the yield and quality of rape by applying potassium fertilizer. Potassium is an important element involved in various physiological and metabolic activities in rape, which can enhance the cold tolerance of rape.