Cover Crop Biomass Calculator

Estimate above-ground biomass, carbon contribution, and nitrogen credits from cover crop species based on growing degree days.

Cover crop species

Growing degree days (base 32F)

Seeding rate (% of recommended)

Field size (acres)

Tab to move between fields

Biomass (lb/ac dry matter)

1,192

Total biomass (lb)11,920

Carbon added (lb C/ac)501

N credit (lb N/ac)9.1

Fertilizer value ($)$55

Weed SuppressionFair

How to Use This Calculator

Enter the cover crop species and seeding rate in lbs per acre.
Input the stand density (plants per square foot) from field counts.
Set the growth stage at termination and the days of growth.
Review the Estimated Biomass in lbs per acre and the Nitrogen Contribution in lbs per acre.
Use the Carbon-to-Nitrogen Ratio output to predict decomposition rate and nutrient release timing.

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