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Planting two sticky corns a year
The cultivation techniques are as follows: 1. Select the appropriate variety. Should choose a short period of fertility, the quality of sticky fine new varieties of tannins. Haiyu Agro-Technology Station has been planted with Xiyujing No.1, which has been broadcast for 115 days in spring and 95 days in summer. The harvest time of fresh spring rods is generally about 90 days after sowing. The harvest time of summer sowing rods is about 85 days, and about 1/15 hectares of fresh rods are about 1500 kg. The fresh sticks are sticky and sweet, and the dry grains are sweet, brittle and sticky. The quality is excellent. Yanjing No.6, strong glutinous, nutrient-rich, most suitable for fresh and fresh food, unique flavor, delicious fragrance, is a medium-mature tan corn hybrid, spring sowing period of 110 days, summer sowing period of about 95 days, harvesting Fresh fruit ear about 80 days. Both of the above varieties are suitable for local planting. Second, re-base fertilizer, top dressing timely. Choose a deeper, more fertile plot, combined with 5,000 hectares of land-fertilizer for 1/15 hectares of land and 30-40 kg of ammonium bicarbonate. In ridging, 15 kg of urea, 30 kg of compound fertilizer, 3 to 5 kg of potassium dihydrogen phosphate, 1 kg of zinc sulfate and 1 kg of borax were applied in the furrow. Topdressing can be performed in two separate ways, namely, after the seedling is set and the big bell mouth period. Third, suitable for early broadcast sowing. In early spring, the technology of double plastic film covering is used to increase the ground temperature and can be planted more than 20 days in advance. The specific method is: first ridge width 50 ~ 55 cm, ridge distance 60 ~ 65 cm ridge, ridge surface covered with plastic film to increase temperature, spraying herbicide to prevent weeds before filming. When the local temperature is stable above 10°C, it is possible to drill two rows of corn on the ridge surface with a small row spacing of 45 cm and a spacing of 25 cm. After sowing, a small shed is used to warm the soil. In the middle of June, the first crop will be harvested and the second crop of corn will be robbed. In August, another crop of corn cobs will be sold. Fourth, field management. (1) Timely seedlings. When the corn seedlings grow to 3 to 5 leaves, the seedlings will be set in time. (2) timely fertilizer and watering. After the corn is set, combined with watering, 1/15 hectares of urea can recover 10 kg of urea to promote the growth of corn seedlings. To the big bell-mouth period of corn, combine urea with 10 kilograms of water and 2 kilograms of potassium dihydrogen phosphate in combination with watering, in order to promote large spikes and grains. (3) Pest control. During the big bell mouth period of corn, baits were used to prevent corn borer in time. During the tasseling period, the thiophanate-methyl, potassium dihydrogen phosphate, and dimethoate-mixed liquids were sprayed to prevent and treat various pests in the late corn period.