Map Variability
Map the most important physical, chemical and biological properties affecting yields throughout your field.
| Property | Soil EC/Texture | Soil OM | Soil pH | Topography |
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| Water-holding Capacity | |
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| Nutrient Storage | |
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| Nutrient Availablity | |
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| Infiltration and Drainage | |
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| Nitrogen Cycle | |
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| Herbicide Efficacy and Carryover Risk | |
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| Salinity Detection | |
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| Yield and Crop Imagery Interpretation | |
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Manage Variability.
- Make the most of every opportunity that good yield environments provide.
- Overcome challenges with site-specific management and improvement.
| Input | Site-specific management objective | Soil Role | Factors |
|---|---|---|---|
| Seed population | Match population to soil’s productive potential | Plant higher populations in more highly productive soil, typically higher water-holding capacity areas with nominal topography. Reduce populations in lower producing areas of problematic soil | Soil EC Soil OM Topography |
| Nitrogen | Adjust applied N to account for needs and natural supply through mineralization | Each 1% of organic matter mineralizes 20-30lbs of N during the season. Incorporating this N credit and inherent yield goals allow optimal N rates and timing. | Soil EC Soil OM Topograpy |
| Nitrogen | Scout and sample for in-season N loss and post-season carryover | N can be lost through leaching and denitrification. Soil texture and topography are bigger drivers of this extremely mobile nutrient. | Soil EC Topography |
| Lime, Gypsum and Sulphur | Adjust pH to ensure maximum nutrient availability. | Identify areas of high & low pH for applying lime, gypsum & Sulphur. | Soil pH |
| P, K other nutrients | Determine nutrient needs from soil samples | Choose sample locations based on each area of the field with differing nutrient use, loss and storage potential. | Soil EC Soil OM Topography |
| Irrigation water | Optimize soil moisture sensors | Veris maps guide the positioning of soil moisture sensors to ensure that moisture data are representative of the field | Soil EC Soil OM Topography |
| Irrigation water | Determine water-holding capacity | Veris maps guide the prescription for the variable-rate pivot to match water rates to soil capacity. | Soil EC Soil OM Topography |
| Nematicides | Identify how soil environment affects nematode activity | Veris maps identify areas of increased nematode population | Soil EC Soil pH |
| Multi-hybrid/variety | Match the right hybrid and variety to different soils. | Veris maps guide planters equipped to plant different hybrids and varieties. | Soil EC Soil OM Soil pH Topography |
Input: Seed Population
Objective: Match population to soil’s productive potential
Soil Role: Plant higher populations in more highly productive soil, typically higher water-holding capacity areas with nominal topography. Reduce populations in lower producing areas of problematic soil
Factors: Soil EC | Soil OM | Topography
Input: Nitrogen
Objective: Adjust applied N to account for needs and natural supply through mineralization
Soil Role: Each 1% of organic matter mineralizes 20-30lbs of N during the season. Incorporating this N credit and inherent yield goals allow optimal N rates and timing.
Factors: Soil EC | Soil OM | Topography
Input: Nitrogen
Objective: Scout and sample for in-season N loss and post-season carryover
Soil Role: N can be lost through leaching and denitrification. Soil texture and topography are bigger drivers of this extremely mobile nutrient.
Factors: Soil EC | Topography
Input: Lime, Gypsum and Sulphur
Objective: Adjust pH to ensure maximum nutrient availability.
Soil Role: Identify areas of high & low pH for applying lime, gypsum & Sulphur.
Factors: Soil pH
Input: P, K other nutrients
Objective: Determine nutrient needs from soil samples
Soil Role: Choose sample locations based on each area of the field with differing nutrient use, loss and storage potential.
Factors: Soil EC | Soil OM | Topography
Input: Irrigation water
Objective: Optimize soil moisture sensors
Soil Role: Veris maps guide the positioning of soil moisture sensors to ensure that moisture data are representative of the field
Factors: Soil EC | Soil OM | Topography
Input: Irrigation water
Objective: Determine water-holding capacity
Soil Role: Veris maps guide the prescription for the variable-rate pivot to match water rates to soil capacity.
Factors: Soil EC | Soil OM | Topography
Input: Nematicides
Objective: Identify how soil environment affects nematode activity
Soil Role: Veris maps identify areas of increased nematode population
Factors: Soil EC | Soil pH
Input: Multi-hybrid/variety
Objective: Match the right hybrid and variety to different soils.
Soil Role: Veris maps guide planters equipped to plant different hybrids and varieties.
Factors: Soil EC | Soil OM | Soil pH | Topography
