I. Choice of varieties:
Premature sweet corn with yellow grains is selected for 70 to 75 days, or for black cyclones for about 75 days. In addition, the sweet corn zin has white, yellow and black grains, which can be chosen at will。
Land block selection:
In order to ensure the quality of sweet maize and to prevent scavenging, it should be planted on plots more than 500 metres from ordinary maize fields。
Iii. How to sow:
Large to four. Live. Same as daejeon. Duplicate cultivation. It's about five days before normal maize. 3. Cultivated with water. The herbicide is sprayed and then the seed sprouts are planted in the eye and placed on the market about 10 days before field cultivation. Cultivation. They are first grown in sheds and greenhouses and are moved to daejeon for three periods。
Iv. Methods of seeding:
Each acre has 3500 to 4,000 seedlings at a distance of 70 centimetres and 25 centimetres. In the case of sprouts, four to six hours of impregnation is appropriate, with three to four pellets in the den, one chronology of two leaves and three chronology of seedlings。
V. Field management:
The difference is more or less the same as in the case of ordinary maize, where care is taken for the early removal of the diaphragms and the timely removal of the ears below the third leaf, so that sweet corn is swirling in the fourth to the fifth leaf, 30 to 40 centimetres in the middle and 50 to 60 centimetres in the second。
Vi. Fertilizers:
One third of 15-30 kg of phosphorus fertilizer is applied to organic fertilizers, two thirds to side application and 7-10 kg of nitrogen fertilizers are applied to four to five leaves。
Prevention and treatment of diseases:
In order to reduce the incidence of corrosive disease, we should first prepare the drug mix, 50 ml psychiatry ii, 50 kg of water, and 1. 5 kg of fury. Mumbled, dryed and seeded, both to control the early transmission of grey fly lice and to prevent infestation during the nursery season. Starting with a 1-leaf perturbation period of maize, the acres are used to plant 50 ml of psychiatry ii to speed up the killing of spirits by 50 ml to 40 kg of water, sprayed once every 7 days and sprayed twice to three times。
Viii. Timely collection:
The best harvest period for fresh fruit is 21 to 25 days after the twitch, at which time the particles contain 68 to 80 per cent of the water and are used to make the cans. The plants that have harvested the fruit are high-quality feed, with high protein and vitamins in the leaves, straws and sugar cane, and high-quality cheap feed for pigs, chickens, sheep and horses。
