The planting technology of corn is as follows: 1. Prepare for sowing in advance. Planting mode, the southern corn is mainly in spring and autumn, and the goal is to harvest fresh fruit. Planting patterns include continuous corn cropping or rice, corn and vegetable rotation, and no-tillage seedling raising and transplanting in the Pearl River Delta region. Before sowing with sufficient base fertilizer, combine base fertilizer and base fertilizer for ploughing. Second, the selection and treatment of seeds. Seeds should be shiny, full and non-toxic, with a germination rate of over 90%. Sun the seeds for 2-3 days before sowing, soak them in cold water 12-24 hours, and change the water every four hours. Third, sow in time. Generally, 10 to 12 degree stabilized soil 10 cm is appropriate. Intercropping corn must also master the suitable growth area, which generally does not exceed 20 days. Fourth, reasonable close planting and planting methods. Transplant in time when the leaves are 3 years old. Varieties with short growth period can be properly densely planted, and vice versa. Transplanted corn plants are short and strong, and can be planted more densely than direct seeding. There are two planting methods: row spacing and wide and narrow row cultivation. For example, if the box is six feet wide, the equal line spacing is 15 inch, and the wide and narrow line spacing is 18+ 10 inch. It is very important to plant high-yield corn, but because of the different weather in different regions, the planting time and technology of corn in different regions are different.