Assign Variable Rates in Zones (Ag Input Rates Distribution Tool)
Assign seed, fertilizer, lime, or input rates to zones and build machine-ready prescription maps.
Overview
The Variable Rate Distribution Tool simplifies prescription map creation for variable-rate applications in precision agriculture. It helps you distribute agricultural inputs across field zones based on productivity potential and build optimized plans for seeds, fertilizers, and other inputs.
Purpose
This tool solves the challenge of setting the right rate for each zone. Instead of applying inputs uniformly, it helps farmers and agronomists allocate resources more efficiently while keeping target totals or averages on track.
Core Features
Multiple Input Management: Supports planning for multiple agricultural inputs at the same time, including seeds, fertilizers, and growth regulators
Flexible Distribution Methods: Calculate based on target total amount or desired average application rate
Zone-Rate Relationship Controls: Choose between normal distribution (higher rates in high-potential zones) or reverse distribution (lower rates in high-potential zones)
Smart Min/Max Constraints: Apply minimum values only to lowest zones and maximum values only to highest zones
Real-Time Savings Calculation: Compare variable rate plans against uniform application to quantify potential input and cost savings
Interactive Visualization: View calculated rates and totals with visual histograms and data summaries
Using the Tool
Configure Field Zones: The tool accommodates up to 10 different management zones
Set Distribution Method: Select either Total Amount or Average Value calculation approach
Adjust Zone Differences: Control rate differences between zones using percentage or absolute values
Apply Constraints: Set minimum and maximum rates if needed for agronomic or equipment limitations
Review Visualization: Examine the calculated rates, totals, and potential savings
Adjust as Needed: Fine-tune any values manually to meet specific requirements
Technical Specifications
Supported Units: kg/ha, seeds/ha, l/ha, kg/ac, l/ac, lb/ac, gal/ac and more
Calculation Methods: Progressive distribution with linear increments (percentage or absolute)
Constraint Application: Min/max values applied selectively to maintain distribution pattern
Saving Comparisons: Against highest rate or custom-defined flat rate
Applications
The Distribution Tool is particularly valuable for:
Planting seed population planning across productivity zones
Fertilizer prescription maps based on soil tests and yield goals
Growth regulator applications in cereals with variable growth potential
Fungicide applications with varying disease pressure risk
Multi-input planning for complete variable rate strategies
By providing a visual interface for variable rate calculations, this tool helps bridge the gap between agronomic knowledge and practical field application, ensuring more efficient resource use and potentially higher returns on input investments.
Once you have specified all the details, click Save to save the Zones map with the applied rates.
Use the Export / Download module to export a VRA map ready for machinery.
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