Special slow-release microelement fertilizer for sugarcane

The invention relates to a special slow-release microelement fertilizer for sugarcane, which is prepared by mixing urea, monoammonium phosphate, calcium magnesium phosphate, potassium chloride, heptahydrate, boric acid and filler. The proportion of nitrogen to phosphorus to potassium contained in the slow-release microelement fertilizer is 15:12:5. The special slow-release microelement fertilizer for sugarcane provides nutrients required by the sugarcane according to demands of growth of sugarcane on nitrogen, phosphorus, potassium and trace elements to adjust growth and development of sugarcane, therefore, absorption of sugarcane to nutrient substances is promoted, the per unit area yield of the sugarcane is improved, the loss of nitrogen in the fertilization process is effectively overcome, the use efficiency of the fertilizer is improved, nutrition is evenly and efficiently provided to plant, the trace elements required by plant growth are supplemented, plant is stimulated and adjusted to grow quickly, the stress resistance to adverse environment is strengthened, the absorption of sugarcane to the nutrient substance is promoted, and the demands of growth of sugarcane are met. By utilizing the technology, the per unit area yield of sugarcane can be improved by 5-8t*hm , the quality of the sugarcane is improved, and sugar of sugarcane is improved by 0.5-1.2 percent. The special sugarcane slow-release microelement fertilizer is suitable for sugarcane areas with slightly acidic soil in tropics and subtropics of southern China.