Cover Crop Seeding Rate Calculator
Calculate seeding rate for cover crop mixtures
About this calculator
The Cover Crop Seeding Rate Calculator helps farmers and agricultural professionals determine the optimal seeding rates for cover crop mixtures. This tool ensures proper plant density by calculating the correct amount of seeds needed per acre based on species composition, desired coverage percentages, and individual seed characteristics. Proper seeding rates are crucial for maximizing soil health benefits, preventing erosion, and achieving cost-effective cover crop establishment.
How to use
Enter your desired cover crop species and their target percentage in the mixture. Input each species' recommended pure live seed (PLS) rate per acre and seeds per pound. The calculator will compute the adjusted seeding rate for each species in the mixture and provide the total pounds of seed needed per acre.
Frequently asked questions
What is pure live seed (PLS) rate?
PLS rate accounts for seed germination percentage and purity, representing the actual viable seeds that will establish plants in field conditions.
How do I determine mixture percentages?
Base percentages on your goals: legumes for nitrogen fixation (20-40%), grasses for erosion control (40-60%), and brassicas for soil penetration (10-20%).
Should I adjust rates for planting conditions?
Yes, increase rates by 10-25% for late plantings, drought conditions, poor seedbeds, or when broadcasting instead of drilling seeds.