Safe Seedrow Fertilizer Calculator

The Safe Seedrow Fertilizer Calculator helps assess the impact of seedrow fertilizer on plant stands. The calculator considers soil texture, soil moisture, row spacing and seedrow spread to come up with a guideline and risk assessment for applied fertilizer rates.

SEEDROW FERTILIZER APPLICATION RISK ASSESSMENT TOOL

Equipment & Fertilizer

Which type should I choose?

Type A

Spring soil moisture: Dry
Soil test N: High
Soil test N (0–24″): 90 ± 40 lb N/acre
Rainfall before seeding: 3 ± 3 mm
Rainfall after seeding: 2 ± 2 mm

Type B

Spring soil moisture: Borderline
Soil test N: Low–Medium
Soil test N (0–24″): 46 ± 22 lb N/acre
Rainfall before seeding: 4 ± 7 mm
Rainfall after seeding: 4 ± 4 mm

Type C

Spring soil moisture: Moist
Soil test N: Low–Medium
Soil test N (0–24″): 43 ± 26 lb N/acre
Rainfall before seeding: 4 ± 3 mm
Rainfall after seeding: 7 ± 7 mm

Type:

Fertilizer:

Add S rate:

Applied Rate (lb N/acre):

Seed Spread (inches):

Row Spacing (inches):

Crop & Soil

Crop Type:

Soil Texture:

Organic Matter (%):

Rationale for 85% Plant Stand Minimum Safety

*Karamanos et. al. 2004. Can. J. Plant Sci. 84: 105-116.

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This is a guideline only based on average data and does not imply any guarantees of no damage to crop. Plant stand data for canola adapted from: http://www.canola-council.org/PDF/CPCfertilizer.pdf. The Calculator is based on research conducted by Westco Fertilizers and developed by Rigas Karamanos. Karamanos et. al. 2004. Can. J. Plant Sci. 84: 105-116.