Biomin Mn & Zn Plus contain complexed manganese and zinc for soil and/or foliar application. They are completely bioavailable and non-phytotoxic to plants when applied according to label directions. These products are designed to prevent and correct manganese and zinc deficiencies and to enhance crop performance during critical or rapid growth periods. They may also be applied together with nitrogen fertilizers. Biomin Mn & Zn Plus reduces the amount of organic nitrogen and adds a small amount of nickel to enhance the crop’s nitrogen-fixing activity.