Maximise the potential of your potato crop with Soiltech. We specialise in developing, manufacturing and marketing foliar nutrition products under the Optima brand. These products, such as Optima Vigor+ ,Optima Leaf MnZn+ and Optima Leaf-K, are of proven effectiveness in potato. We formulate liquid products that are highly efficient, compatible in the tank mix and easy to use. And we test them extensively in different conditions.