FIELD OF APPLICATION Potassium Sulphate Haifa SOP Bio is used in nutrient solutions for both irrigation and foliar fertilization to supply the plant nutrients potassium and sulphur. When nitrogen supply needs to be limited, such as during flowering, fruiting and at the end of the growing season, potassium sulphate is an excellent nitrogen-free source of potassium. It also provides valuable sulphur to the crop. WHY SHOULD I USE POTASSIUM SULFATE SOP BIO Potassium improves the plant's tolerance to drought, frost, pests and thus increases yields. The ability to control the potassium/nitrogen ratio also provides the conditions for a better quality, shelf life and higher sugar content in the plant. Sulphur is a component of certain amino acids and is therefore crucial to the plant's ability to produce protein. Sulphur is also involved, for example, in fat production and in energy transfer reactions in cells. The sulphur content of potassium sulphate makes it particularly suitable for crops such as cabbages, onions, sunflowers and others, as they produce sulphur-rich organic compounds as protective substances.