Choose good breeds and break their dormancy period. The method is: Selecting good varieties with short growth period and strong disease resistance. A few days before sowing, the selected corn seed is exposed to the sun. It is forbidden to directly expose the seed to the concrete floor. Because the temperature is too high, the seeds are easily burned. It is best to use bamboo sticks.
Closely planted. Wide and narrow rows of cultivation, width 80 cm, narrow row 40 cm, spacing 25 cm, 2 per hole, fertilizer applied in the middle of the two, can not be applied together with the seed, so as not to burn seed, about 4500 per acre basic seedlings.
Cover film and broken film. Immediately after sowing, the film was filmed, and about 7 days after sowing, when the corn seedlings grew to 2 leaves and 1 heart, the film was broken and the seedling film was supported.
Fertilizer management. 1, after the rupture of the membrane, when the seedlings grow to 5-6 leaves, mu with 10 kg of urea topdressing, topdressing with a cylindrical wooden stick between two strains of membrane fertilization and cover film. When corn grows to 12 leaves (big bell season), it is topdressed with 10 kg urea. 2, timely irrigation. When the seedlings break the membrane and the big bell-mouth period is dry and there is no rain, it needs to be filled with water in time. It must be filled with gutters and the surface is wet and the water removed.
Pest Control. Ground tigers were treated with diltiazem; corn borers were used for blessing, and the enemy was killed to prevent and control; corn leaf spot was treated with 20% tricyclic terpenes for water control or 500 times liquid zinc oxide sprays.
Timely harvest, timely processing of plastic film. Winter corn generally matures in late April or early May due to variety. The mulch is treated in time after harvest. Http://
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