Manganese (Mn) is an essential micronutrient that plays a critical role in plant growth, photosynthesis, and overall crop productivity. It helps activate enzymes responsible for converting sunlight into energy, supports chlorophyll production, and is essential for the water-splitting process during photosynthesis. Manganese also plays an important role in nitrogen metabolism, root development, and the production of compounds that help plants respond to environmental stress and disease pressure. When manganese is deficient, plants may develop yellowing between leaf veins, reduced photosynthetic efficiency, slower growth, and weak overall performance. These deficiencies can limit the plant’s ability to produce energy, develop healthy roots, and efficiently utilize nutrients, ultimately reducing yield potential. Maintaining adequate manganese availability helps maximize photosynthetic efficiency, support healthy plant development, and protect yield potential throughout the growing season.