Micronutrient Calculator

Zinc, boron, and manganese rates from soil test and crop.

Micronutrient

Soil test result (ppm)

Soil pH

Field size (acres)

Product analysis (%)

Product price ($/lb)

Tab to move between fields

Product rate (lbs/acre)

6.9

Actual nutrient (lbs/acre)

2.5

Soil test deficit (ppm)0.5

Currently sufficient? (1=yes)0

Sufficiency level (%)50%

Sufficiency threshold (ppm)1

pH adjustment factor1

Cost per acre ($)$3.47

Total product (lbs)139

Total cost ($)$69.44

How to Use This Calculator

Select the Micronutrient: Zinc, Boron, Manganese, Iron, or Copper.
Enter your Soil Test Result (ppm) — DTPA extraction is standard for most micronutrients.
Set Soil pH — higher pH reduces availability of zinc, manganese, iron, and copper.
Enter Field Size (acres) and Product Analysis (%) or leave at 0 to use typical product defaults.
Review Product Rate (lbs/acre), Actual Nutrient (lbs/acre), Sufficiency Level (%), and whether the field is Currently Sufficient.

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