Professor�s Go Green is used to PREVENT and RESTORE common deficiencies in plants. It is a scientifically formulated liquid fertilizer, with added Calcium, Magnesium, Nitrogen and Iron which help reduce plant discolouring, rust spots and tip burn. Go Green provides protection for your plants against excessive nutrient salt build up, environmental stress and lack of chlorophyll, ensuring lush, dark vigorous growth. Whatever your growing medium, plants require a mix of nutrients to remain healthy. Deficiencies arise when there is an inadequate supply of nutritional elements and plants can suffer various deficiencies, both indoor and outdoor. Most of the classic deficiency symptoms you may encounter often manifest as foliage discoloration or leaf stains and deformity.