Seeds per Hectare Formula:
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Definition: This calculator estimates the number of seeds needed per hectare based on target plant population and germination rate.
Purpose: It helps farmers and agronomists determine optimal seeding rates for crop production.
The calculator uses the formula:
Where:
Explanation: The target population is adjusted for germination rate and scaled up to hectare basis.
Details: Proper seed rate calculation ensures optimal plant density, maximizes yield potential, and minimizes seed waste.
Tips: Enter the target plant population (plants/m²) and germination rate (0-1, default 0.85). All values must be > 0.
Q1: What's a typical germination rate?
A: Most quality seeds have 80-95% germination (0.8-0.95), but always check your seed tag for actual rates.
Q2: How do I determine target population?
A: Consult crop-specific recommendations based on your growing conditions and yield goals.
Q3: Should I add a safety factor?
A: Many farmers add 5-10% to account for field variability and other losses beyond germination.
Q4: Does this account for seed spacing?
A: No, this calculates total seeds needed. Spacing would be calculated separately based on row configuration.
Q5: How do I convert to seeds per acre?
A: Multiply the result by 0.4047 (1 ha = 2.471 acres).