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

RECOMMENDATIONS

Application Rate: Use 1/2 to 1 Litre/ac either in-furrow or as a foliar spray.
The optimum rate of application will vary between fields, depending on soil pH and organic matter content. The 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 a soil test is a 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.