In recent years, there has been an upsurge of planting sweet corn in many places, and corn festivals have been held in some places to attract the general public to buy sweet corn directly from the sweet corn producing areas, so that the farmers who grow them have achieved very good results. It will continue to expand. However, the survey also found that some farmers who also cultivate sweet corn have unsatisfactory income, and some are unwilling to continue planting. The reasons are: first, improper selection of varieties, low yield, and low sweetness; Fertilizer errors, some partial nitrogen fertilizer, some fertilizer is too little or too much; Third, the planting division is not reasonable, so that the sweetness is affected; Fourth, good technology supporting technology is not in place. In order to give full play to the planting effect of sweet corn, we must pay attention to the following points in technical guidance:
I. Clear categories of sweet corn varieties. From the perspective of sweet corn varieties that have been grown in China, there are mainly three major categories. One is common sweet corn. The sugar content of grain when cooked is about 10%, and the grain is transparent and shrinking when it matures; the second type is super sugar beet. In corn, the sugar content in mature period is more than 20%, more than twice that of ordinary sweet corn, and its flavor is fragrant, brittle, sweet, fresh and delicious. It is mainly used as fresh food, and the grain matures and dehydrates into a depression-like shape; Is to strengthen the sweet corn, sugar content between the ordinary sweet corn and super sugar beet corn, which has a high content of water-soluble polysaccharides, the use of high value. All localities should select the right road variety according to the needs of the local market.
Balanced application of multiple fertilizers. Sweet corn should not only apply base fertilizer but also timely fertilizer. In the base fertilizer, 50-60 pounds of compound fertilizer should be applied per acre, or 80-100 pounds of bio-organic compound fertilizer, 30 pounds of inorganic compound fertilizer, 20 pounds of potash fertilizer, and multiple compound fertilizers for heading and flowering. 40 pounds, birth delay should be equipped with ammonium bicarbonate 50 kg.
Third, pay attention to good law supporting planting. First, there are early, middle and late-maturing varieties of sweet corn, which should be planted in stages according to local market conditions to avoid centralized listing. During the ripening period, we must also take good care of it. Early production has low sugar and less sugar. The sugar in the late grains is converted to starch and eaten is not refreshing. Second, sweet corn must be grown in isolation from normal corn to prevent the sweetness of sweet corn from being reduced by mixed crops. Third, the planting density is about 3500 plants per acre is appropriate, not too thin, at the same time, it is necessary to remove the delivery at random; Fourth, it is necessary to pump water and drought in a timely manner when the drought persists; Fifth, use high-efficiency and low-toxicity Pesticides to increase the number of pest control.
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