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    NUTRIENT:

    MANGANESE

    Manganese (Mn) functions primarily as part of enzyme systems in plants. It activates several important metabolic reactions and plays a direct role in photosynthesis.

    Micronutrient With Giant Benefits

    Manganese accelerates germination and maturity while increasing the availability of phosphorus (P) and calcium (Ca).

    Manganese deficiency symptoms

    Symptoms of deficiency can vary across crop species, but similarities exist for how nutrient insufficiency impacts plant tissue color and appearance. Nutrient deficiencies are commonly associated with the physical location on the plant (i.e., whether the symptoms are primarily observed on older versus newly formed plant tissue), but these symptoms can spread as the severity of the deficiency progresses.

    Photosynthesis

    Manganese plays a vital role in photosynthesis by aiding in chlorophyll synthesis.

    More Mn

    Soybeans and wheat in particular require more Mn than many crops.

    Deficiency Symptoms

    Manganese is very immobile in plants, so deficiency symptoms appear first on younger leaves, with yellowing between the veins. Sometimes a series of brownish-black specks appear.

    pt_nutrient_details_soybean

    Imbalanced Nutrients

    Although Mn deficiencies are often associated with high soil pH, they may result from an imbalance with other nutrients such as calcium (Ca), magnesium (Mg), and Iron (Fe).

    Soils with Mn Deficiencies

    Manganese deficiencies are most common in high organic matter soils and in those soils with naturally low Mn content and neutral to alkaline pH.

      • Photosynthesis

        Manganese plays a vital role in photosynthesis by aiding in chlorophyll synthesis.

      • More Mn

        Soybeans and wheat in particular require more Mn than many crops.

      • Deficiency Symptoms

        Manganese is very immobile in plants, so deficiency symptoms appear first on younger leaves, with yellowing between the veins. Sometimes a series of brownish-black specks appear.

      • Imbalanced Nutrients

        Although Mn deficiencies are often associated with high soil pH, they may result from an imbalance with other nutrients such as calcium (Ca), magnesium (Mg), and Iron (Fe).

      • Soils with Mn Deficiencies

        Manganese deficiencies are most common in high organic matter soils and in those soils with naturally low Mn content and neutral to alkaline pH.

      Looking to dig deeper into manganese?

      Browse the Resource Library for manganese-related articles, research insights and more.

      Resource Library