Tomato Maker provides comprehensive nutrition (major and minor nutrients) and corrects nutritional deficiencies responsible for Blossom End Rot, a common tomato problem. A unique blend of natural sources of nutrients combined with Calcium, Magnesium, and Iron. This unique blend provides a comprehensive specialty tomato fertilizer for great tomatoes. Can be used on most other fruits and vegetables as well. Blossom end rot is a disorder caused by calcium deficiency. Blossom End Rot most often appears as a round and brown shrunken area on the end of the fruit opposite that of the stem. As the fruit ripens, this area will turn dry and even leathery. The disorder often appears after a period of rapid growth followed by dry conditions. It may also appear after periods of heavy rain. Tomato fertilizer Guaranteed Analysis: Total Nitrogen - 4.0% • 4.0% Water insoluble nitrogen Available Phosphate - 2.0% Soluble Potash - 6.0% Calcium - 3.0% Magnesium - 0.5% Water soluble magnesium - 0.5% Iron - 0.25% • 0.25% water soluble iron Derived from: blood meal, fish meal, cotton seed meal, single super phosphate, potassium sulfate, potassium silicate, iron sulfate, calcium nitrate, gypsum, and magnesium sulfate >>. Contains natural sources of major nutrients as well as various micro-nutrients >>. 4-2-6 Analysis plus micro nutrients Tomatoes are Heavy Feeders This means that in order to produce the optimum amount of fruit they need constant access to plenty of rich nutrients.