The ear of sweet corn that is harvested 1-2 days after silking is high-grade vegetable corn shoots; the sugar content of grains in milk is several to ten times higher than that of ordinary corn, and the harvest ear can be used as fruit and vegetable. Fresh food can be processed into a variety of delicious foods. Different from ordinary corn, because of the special physiological characteristics of sweet corn and the restrictions on the sales market, in order to obtain better benefits, we must pay attention to the following issues. 1. The production of sweet corn for harvesting and planting in appropriate amounts Whether harvesting corn shoots or harvesting fresh fruit spikes, the appropriate harvesting time is relatively strict and can not be stored for a long time at room temperature after harvesting. Generally, it should be 24 Within a few hours of selling or processing, the first step in planting sweet corn is to consider the market and storage capacity, and determine the planting area based on sales volume. 2. The selection of suitable varieties of sweet corn varieties can be divided into three categories: ordinary sweet corn, super sweet corn, and enhanced sweet corn. The sugar content of common sweet corn milk during ripening is low, only about three times that of normal corn, and the suitable harvest time of fresh ear is short. The production of sweet corn, which can be used mainly for canned food, can cultivate this type of variety. Super-sweet corn and enhanced sweet corn have a high sugar content at the ripening stage, which is about ten times higher than that of normal corn, and the fresh ear has a suitable harvest time, which can be used for both fresh ear and processing; For the main purpose of producing corn shoots, multi-spike sweet corn for shoots should be used. 3, make isolation, stage sowing (1) strict isolation. When sweet corn is flowering, if the pollen of ordinary corn is given, its grains will lose the characteristics of sweet corn and become non-sweet corn. Therefore, when planting sweet corn, it is necessary to use topography, space, or time for isolation, and to prevent normal corn string powder cultivated in the field to ensure product quality. If space isolation is adopted, the isolation distance should be over 400 meters; if time isolation is adopted, timely sowing should be done according to the length of the growing period to ensure that ordinary corn in sweet corn and nearby fields are not planted in the normal flowering period, and the sowing date should be 20-30 days apart; It can also use topography or high stalk (dry) plants for isolation. China Agricultural Network Editor