Performance Nutrition LidoQuest Zinc (9% Zinc), 2.5 GallonPatented 9% chelated zinc solution. LidoQuest Zn IS FORMULATED TO BE USED IN FERTILIZER SOLUTIONS. Broadcast, band or row applications are acceptable, although greater efficiency may be expected from band applications. Micronutrient deficiencies usually occur when plants are small; therefore, micronutrient should be added to the fertilizer at or before planting. This product is recommended as a supplement to a well balanced fertilizer program only.