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Crop Agriculture

Yield Map-Based Management Zone Development

Related page:  Landsat-Based Management Zone Development

 

Clean yield maps can be used to development management zones. Maps can be used for variable rate application of phosphorus and potassium if cleaned properly. A way to average clean yield maps for different crops is to subtract the minimum yield from all values then normalize (divide by) the maximum yield so all maps will have a value from 0 to 1. The example below shows management development for four consecutive years of yield maps (corn-soybeans-corn-soybeans) that have been normalized in this manner and averaged.

Savings from Yield-Based Management Zones for Phosphorus and Potassium Application

 

Based on four consecutive years of yield maps; darker green is higher yield.

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