High-yield cultivation techniques for sweet corn sweet scent
Characteristic
The plant height is about 165 cm and it is not easy to fall. The ear length is about 18 cm, the ear is about 6 cm thick, the ear is 14-18, the single ear is about 400 g, the ear is full, there is no baldness, the color of the ear is beautiful, yellow and white, the ratio of yellow to white is 3:1. Super sweet, with a sugar content of 16--17%, full of aroma, no scent, and can be eaten raw. The whole growth period is about 80 days, and cultivation is easy. High output and good economic returns.
Cultivation points
1. Spring greenhouse cultivation is carried out in February, small arch shed cultivation is planted in March, and plastic film cultivation is planted in April, corresponding to harvest at the end of May and early July. Autumn open field cultivation can be planted at the end of July and early August, and harvested in October.
2, single-grain on-demand or seedling transplanting, or a combination of the two, that is, single-grain on-demand and corresponding nursery, in preparation for filling. This can save both seed and seedlings. 667 square meters planted about 4000 plants.
3, the base fertilizer should be sufficient, 677 square meters of rotted mature organic fertilizer 40, buried in the sputum, and then apply 50 kg of compound fertilizer. At the beginning of the booting stage, depending on the growth status of the plant, the fertilizer can be applied topdressing, and the human waste or urea plus superphosphate can be applied. Drought should be avoided during the growth period, especially during the good and bad seasons.
4. In order to ensure the fullness of the sweet corn, it is necessary to remove the tillers in time, leaving only one ear per plant and stripping other small ears in time. Since sweet corn is cultivated in the early spring greenhouse by wind, it is best to remove the membrane during the flowering period. Or before the 10th time, the human activity is promoted to promote pollen emission, improve the pollination effect, and reduce the phenomenon of ear deficiencies.
5. Pests that harm sweet corn, mainly aphids and aphids in spring, and noctuida and aphids in autumn. The prevention and control of pests and diseases is mainly based on prevention and comprehensive prevention and treatment. Do not spray again near the harvesting period.
6. When the corn has to be blackened and the kernels are full and there is no depression, it is the best consumption period, and it should be harvested in time. Because fresh sweet corn has a lot of water, high sugar content, thin skin and easy damage to the ear, it should be listed together with the shell.
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