摘要 |
An improved micronutrient fertiliser comprising leach tailings from a sulphur dioxide leach process for the recovery of manganese or manganese sulphate products and a method for the production of such an improved micronutrient fertiliser, the method comprising the step of blending the leach tailings with a ore or waste containing the appropriate level of sulphide ions that will give the required rate of manganese leaching for the specific soil type. |