It is sweeter to choose a good type of sweet corn.

In recent years, many places have raised the upsurge of planting sweet corn. In some places, corn festivals have been held to attract the general public to purchase sweet corn directly in the sweet corn producing areas, so that the farmers who have planted have achieved good benefits and the planting area is also It has continued to expand. However, the survey also found that farmers who also grow sweet corn have some unsatisfactory incomes, and some do not want to continue planting. The reasons are: improper selection of varieties, low yield, and low sweetness; There were mistakes in fertilization, some applied nitrogen fertilizer, some applied too little or too much; third, the planting area was not reasonable enough to affect the sweetness; fourthly, the good supporting technology was not in place. In order to give full play to the cultivation effect of sweet corn, we must pay attention to the following points in technical guidance:

1. Identify the sweet corn variety category. From the perspective of the sweet corn varieties that have been planted in China, there are mainly three major categories, one is ordinary sweet corn, the sugar content of the grain is about 10% when the milk is cooked, and the grain is transparent and shrink when the grain is mature; the second type is super beet. In corn, the sugar content in maturity is more than 20%, which is more than double that of ordinary sweet corn. Its flavor is fragrant, crisp, sweet, fresh and delicious. It is mainly used for fresh consumption. After the seeds are mature and dehydrated, they are hollow and dry. It is to strengthen sweet corn, the sugar content is between ordinary sweet corn and super beet corn, wherein the water-soluble polysaccharide content is high and the utilization value is high. All localities should select the right varieties according to the local market needs.

2. Balance the application of multiple fertilizers. Sweet corn needs to apply enough base fertilizer and timely topdressing. In the bottom fertilizer, 50-60 kg of multi-component fertilizer should be applied per mu, or 80-100 kg of bio-organic compound fertilizer, 30 kg of inorganic compound fertilizer, 20 kg of potash fertilizer, and 20-fold compound fertilizer for heading and flowering. 40 kg, fertility retarded with 50 kg of ammonium bicarbonate.

Third, pay attention to good law supporting planting. First, sweet corn has early, medium and late-maturing varieties. It should be planted in stages according to the local market conditions to avoid centralized listing. The harvesting period should also be well grasped. The premature yield is low and the sugar is low. The sugar in the grain is too late to be converted to starch, and the taste is not good. Second, the sweet corn must be isolated from the common corn to prevent the sweetness of the sweet corn from being mixed. Third, planting density is about 3,500 per acre, it should not be too thin. At the same time, it is necessary to remove the tillers at random; fourth, when the drought is continuous, it is necessary to pump water and drought in time; fifthly, high-efficiency and low-toxic pesticides are used to increase the number of insect control.