Symptoms and Control Methods of Magnesium Deficiency in Flowers and Ornamental Plants

Magnesium-deficient plants grow poorly. In older leaves, chlorosis spreads from the leaf margins toward the center, from bottom to top, and the leaves gradually turn white; spots of various colors appear along the veins, and eventually the whole leaf turns yellow. For control, spray a 0.20%-0.40% magnesium sulfate aqueous solution 3-4 times in a row, with an interval of 7-10 days between sprays. For soil severely deficient in magnesium, apply 5-10 kg of magnesium sulfate per mu, mixing it into the base fertilizer in autumn or winter and applying it to the soil.