Plants remove significant amounts of Sulphur and Magnesium as they grow and develop. Sulphur and Magnesium are not replaced by many of today’s high analysis fertilizers.
Sul-Po-Mag has an analysis of 22% Sulphur (S), 22% Potash (K2O), and 11% Magnesium (Mg). Potash stimulates and promotes root growth and development and increases plant vigor, stem strength and resistance to many diseases. Potassium is a key in the prevention of plant diseases. Magnesium is necessary to the formation of chlorophyll and is essential for plant utilization of Nitrogen, Phosphorous and Sulphur.
Light application: 7 lbs per 1,000 square feet, 1/4 cup per plant or 1 lb per 20 feet row
Normal application: 12 lbs per 1,000 square feet, 1/3 Cup per plant or 2 lbs per 20 feet row
Heavy application: 25 lbs per 1,000 square feet, 1/2 Cup per plant or 3 lbs per 20 feet row