Created by Geoff Reeves, OptiBlend XLSM is a powerful dry fertilizer blending Excel spreadsheet that lets you create custom blends tailored to your specific nutrient requirements—while automatically calculating the most cost-effective mix.

OptiBlend XLSM is currently being used by many retail fertilizer facilities. If you are a retailer or a farmer OptiBlend XLSM is a simple but powerful tool to calculate your fertilizer needs.