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Magnesium plays a key role in photosynthesis as the center of the chlorophyll molecule and acts in enzyme reactions forming proteins, and aiding the plant in the manufacture of energy. In melons, magnesium also aids in promoting healthy leaf tissue and fruit fill, while improving flowering and overall crop production.
Deficiencies of magnesium in melons can cause reduction in growth and are most common on sandy, acidic soils. The symptoms will appear first on the older leaves as yellow or white areas between the veins. Additionally, high rates of K fertilizer without an Mg source can induce a deficiency and applying a balanced fertilizer like Intrepid Trio that has K, Mg, and S in each granule will provide balanced nutrition and high-quality melons.
