Fertilizer Products

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    ALPINE MicroBolt Mn®


    ALPINE MicroBolt Mn Product Reference Sheet MSDS

    Nutrients Supplied
    Soluble Potash (K20)
    Manganese (Mn)

    Product Properties 
    Weight 1.33 kg/L
    Specific gravity 1.33 kg/L
    pH 6.8 - 7.5
    Appearance pink liquid
    Odor slightly musty

    ALPINE MicroBolt Mn micronutrient is manufactured by utilizing the highest quality raw materials to provide a very agronomically efficient source of plant available Manganese. The chelate used is compatible with high orthophosphate products. ALPINE MicroBolt Mn micronutrient delivers:

    • Maximum plant nutrient solubility - in furrow or foliar
    • Minimal salt index
    • No application equipment corrosion
    • Compatibility with most other liquid fertilizers
    • Tank mixable with most pesticides
    • Low impurities


    Application Rate: Use 1/2 to 1 Litre/ac either in furrow or as a foliar spray.
    Optimum rate of application will vary between fields, depending on soil pH and organic matter content. Product should be used on the basis of soil and/or tissue analysis. 
    Maximum of 2L/ac of any combination of micronutrients when mixed with a seed placed starter fertilizer. 

    Role of Manganese

    • Manganese assists Iron in Chlorophyll production
    • Catalyst in oxidation-reduction process
    • Manganese affects lignin building qualities and is critical in preventing lodging and disease
    • Manganese is crucial when growing oats
    • Glyphosate has been linked to Manganese deficiencies
    • With glyphosate translocating with the root mass of weeds and RR crops thus leaking into the root rhizosphere, this immobilizes Manganese which is required for the growth of many plants
    • Without Manganese, there is no seed production (i.e. seedless grapes, oranges have no Manganese)


    Manganese Soil Availability

    • Manganese is not available when soils are cold in spring because Manganese starts out in the Mn4+ state, must convert to the Mn3+ state and then convert to the Mn2+ state to be available to the plant. The fungus "Take-all" root rot oxidizes early Manganese availability, reducing lignification of roots, making them more susceptible to infections. This is where a GREAT SEED TREATMENT WORKS.
    • Reduced lignifications also can create lodging problems
    • Foliar, seed-placed treatments with Manganese are ways to correct Mn deficiencies but seed-treated and seed-placed treatments are preferable.
    • 9 - 12 ppm in soil test is medium amount


    Manganese in the Leaf


    Sufficiency tissue test ranges in ppm

    • Canola: 60 - 110
    • Small grains: 30 - 60
    • Peas: 40 - 70
    • Corn @ tasseling: 30 - 100
    • Soybeans: 35 - 100

    For more specific guidelines, consult with your authorized ALPINE Dealer or ALPINE District Sales Manager for fertility recommendations.


    Product Specifications
    micronutrients.manganese 4
    applicationMethod Micronutrient