Nitrogen Fertilizer Calculator for Concord Vineyards (Beta)

I am looking for feedback on this new Nitrogen fertilizer calculator for Concord vineyards. Based on input from soil tests, field observations, and tissue tests, it will calculate N rates for vineyard maintenance and corrective actions. Calculations are based on organic matter decomposition rates for Lake Erie soils, nutrient needs from both vine growth and crop yield, fertilizer uptake efficiency studies, and tissue values collected from the Hi-Res Vineyard Nutrition Project.

Enter your own information from soil and tissue tests by adjusting the sliders and see if the calculator gives you a reasonable response for your vineyard management. If not, let me know where you think the calculator is falling short.

Disclaimer: This calculator was built based on Lake Erie Concord production for the juice and wine production where Concord is predominantly grown on its own roots and not irrigated.