Application method for coated block fertilizer

The invention discloses an application method for a coated block fertilizer. The application method comprises the following steps: A, when the coated block fertilizer is applied to straw crops, digging a pit with a diameter of 10 cm every 50 cm on a ridge side, and burying a piece of the coated block fertilizer in each pit; B, when the coated block fertilizer is applied to gramineous crops, digging a pit with a diameter of 8 cm every 40 cm on the ridge side, and burying a piece of the coated block fertilizer in each pit; and C, when the coated block fertilizer is applied to herbaceous or leguminous crops, digging a pit with a diameter of 6 cm every 30 cm on the ridge side, and burying a piece of the coated block fertilizer in each pit, wherein the coated block fertilizer applied in the step A comprises the following components: 80 parts of diamine, 40 parts of nitrate, 30 parts of a paraffin coating, 20 parts of plant ash, 30 parts of potassium chloride, 20 parts of a compost and 10 parts of lysine; and the coated block fertilizer applied in the step B comprises the following components: 100 parts of diamine, 50 parts of nitrate, 40 parts of a paraffin coating, 40 parts of plant ash, 50 parts of potassium chloride, 40 parts of a compost and 30 parts of lysine. The application method provided by the invention is simple; and the coated block fertilizer used in the application method has the advantages of simple proportion, long-duration fertilizer efficiency, and convenience and rapidness in fertilization.