Vigor Crop 16.5 CaO is a brown color liquid for the usage to have greater harvest of the crops. Vigor Crop 16.5 CaO emphasizes plant growth and fruit set. Vigor Crop 16.5 CaO is to strengthen cell wall structure, makes plants absorbing other nutrients effectively and helps crops grow better to increase the harvest. In addition, Vigor Crop Series adds Seaweed Acid to balance plants growth resisted in extreme weather conditions, increases anti bacterial capacities, plant growth and sizes of flowers and fruits. Vigor Crop 16.5 CaO may be placed 1-2 inches below seeds or directly injected into root system because the product is non-phytotoxic. Vigor Crop 16.5 CaO is designed for use in all soil types. It should be concentrated for maximum response. Apply it as a band in the soil or inject it through drip or micro-sprinkler systems. Application rates will vary depending on the crop grown. Vigor Crop 16.5 CaO is an effective foliar nutrient to help plants grow for all seasons when potash levels fall below optimum values.