Claims of poor fertilizer application and visual striping in fields have increased in recent years. This issue impacts all sectors of the supply chain including growers, custom applicators, cooperatives and agribusiness insurance companies. An increase in documented application problems is primarily driven by a broader use of aerial imagery that can easily detect problems and an increase in use of dry nitrogen fertilizers. Cases of poor-quality application are seen less frequently with phosphorus or potassium products than with nitrogen because corn is not as sensitive to varying rates of these nutrients. Prior to applying dry fertilizer, follow these guidelines to achieve the best possible quality during application.
Iowa State University
Bergman, Ryan W., "Recommendations to Achieve High Quality Dry Fertilizer Applications" (2020). Integrated Crop Management News. 2609.
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