Maize is a high-yielding crop and requires a large amount of fertilizer. Scientific fertilization is the key to obtaining high and stable yield of corn. According to the law of fertilizer requirement of maize, a reasonable method of fertilization should be determined, and the proportion of suitable fertilizer should be determined in order to achieve high yield and stable production of corn and maximize economic benefits. Apply base fertilizer or seed fertilizer: Base fertilizer should be applied before sowing of summer corn, mainly organic fertilizer (less applied in production), and it can also use the former stubble wheat to directly return straw to the field (appropriate amount of nitrogen fertilizer should be applied to regulate carbon and nitrogen Than, accelerate straw maturity). Fertilizers are mainly available nitrogen, phosphorus and potassium fertilizers, such as diammonium phosphate (Mushi 5 kg -10 kg), potassium sulfate compound fertilizer (45% Mushi 10 kg -15 kg), etc. All have a good yield increase. Appropriate dressing is critical: Dressing plays a decisive role in the growth of corn. Top dressing is mainly available nitrogen fertilizer, and it is divided into different stages according to the different growth stages of corn. In practice, fertilizers are usually topped off in three parts: Miao Fei, jointing fertilizer, and panicle fertilizer. Fertilization at seedling stage should be applied early, accounting for about 10% of the total fertilizer, and jointing fertilizer accounts for about 60% of the total fertilizer. This time fertilization is the key topdressing, and attacking panicle fertilizer accounts for about 30%. Summer maize is at jointing and booting. The demand for nitrogen, phosphorus, and potassium is relatively large. Phosphorus and potassium fertilizers should be applied according to specific conditions. Pay attention to the application of foliar fertilizer: Foliar fertilization as a cost-effective fertilization measures, has been recognized by many people, such as spraying 0.2% - 0.3% of potassium dihydrogen phosphate twice in corn jointing stage - 3 times , It can increase corn production by more than 10%. Spraying 0.1%--0.3% zinc sulfate aqueous solution at seedling and jointing stage of corn can prevent the occurrence of corn white mosaic disease. Application of fertilizers to be careful to pay attention to the current agri-food market with a variety of names of special fertilizers emerge in an endless stream, a wide variety, including no shortage of shoddy products, today is a corn fertilizer, tomorrow, a change of bags may be wheat fertilizer, so in the fertilizer, When using fertilizer, be careful, according to the growth characteristics of corn and soil nutrients.