Fertilizer additives supplement the base fertilizer with what may be missing for a particular crop: calcium and magnesium when using soft water, silicon, enzymes, vitamins or individual nutrients. They are useful in home, garden and greenhouse cultivation when plants need something supplemented or corrected.
In this collection, you will find CalMag products, silicon additives, enzyme products, vitamin concentrates and single-nutrient fertilizers for correcting deficiencies. You can find the full range in the all fertilizers category.
