Corn compound fertilizer and preparation method thereof

The invention discloses a corn compound fertilizer. The corn compound fertilizer is made from the raw materials including, by weight part, 30-40 parts of urea, 20-30 parts of monoammonium phosphate, 25-30 parts of potassium sulphate, 10-20 parts of calcium superphosphate, 5-10 parts of potassium chloride and 2-8 parts of additives, wherein the additives are composed of, by weight part, 2-4 parts of zinc sulfate, 1-3 parts of manganese sulfate, 2-5 parts of cobalt nitrate and 1-4 parts of phoxim. The corn compound fertilizer has the advantages of being reasonable in N-P-K ratio, well overcoming damage due to continuous cropping over years, obtaining high plants, improving the speed and yield of individual development, achieving reasonable nutrition allocation of elements, and meanwhile, being simple in preparation, durable in efficiency and capable of effective improving soil and enhancing disease resistance of corn plants, meeting the nutrition demands during the growth of the corns, improving the yield and facilitating sustainable development of agriculture.