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Middle shed broccoli - leeks cultivation techniques
Yongnian County Farmer Li enhanced the use of plastic sheds to cultivate broccoli in the spring, cultivated leeks in the autumn, 2,000 grams of broccoli per mu, output value of 4,000 yuan, 3000 kg of leeks per mu, and output value of 3,000 yuan; the total mu production value of 7000 yuan, net income of 5,500 yuan Yuan around. First, broccoli cultivation technology 1, species: choose cold, high yield varieties, such as the Green Ridge. 2. Sowing and raising seedlings: sowing in the greenhouse in mid-January, and pouring foot-water on the seedbed before sowing. After the water infiltrate, spread the seeds evenly on the seedbed and cover the fine soil with 0.5 cm thick. Keep the bed at 20-25°C. After emergence, the temperature dropped to 15-25°C during the day and 10-12°C during the night. When the seedlings grow to 2-3 true leaves, seedlings are planted. In late February, 5 true leaves are planted. 3, site preparation: the first half of the month of planting sheds, and combined with 5,000 kg of high-quality farmyard manure, 50 kg of superphosphate and 15 kg of urea. After the deep-turning sorghum, 100 cm wide, 15 cm high, and 20 cm high, each planting two lines per plant, spacing 50*50 cm. Watering in time after planting. 4. Field management: cover the plastic film after planting, in order to improve ground temperature and promote early maturing. Ventilate day and night when outside air temperature is above 10°C. When the bulbs begin to form, the temperature is prevented from exceeding 22°C, and continuous high temperatures above 20°C reduce the quality of the curd. To trap the leaves on the flower ball, let the flower ball see light. The management of water and fertilizer should be diligent, generally 7-10 days, a total of 3 fertilizations in the whole growth period, and 15 kg of compound fertilizer per mu. The first time in the second half of the easing period, the second time when the flower ball was first appeared, the third time after the main flower bulb was harvested. From late April to early May, when the main flower balls reach 12-15 centimeters in diameter, they are closely packed, and the buds are small in size and the color is green when they are harvested. Otherwise, the buds will turn yellow to reduce the quality. The side curb was harvested in mid-to-late May. 5. Pest control: Control the cabbage caterpillar with Sitaprodil or Abamectin; Control the aphids with imidacloprid or avoiding fog; Use the polyoxygenase or Precore to control downy mildew; . Second, leek cultivation technology 1, species: the selection of strong heat-resistant, high yield and high quality red leafy leek. 2. Soil preparation: After broccoli was harvested, the soil preparation was completed in a timely manner. 2000 kg of organic fertilizer was applied to Mushi and 50 kg of diammonium phosphate. After deep-casting, flattening is made to a width of 1.2 meters. 3, sowing: sowing in early June, acres with 1 kg. After sowing, cover soil 0.5 centimeters. 4. Field management: Viola is a wild vegetable that is easy to manage and can often keep the field moist. The base fertilizer is sufficient, and no fertilizer may be added during the growth period. If the fertilizer is lacking, a fertilizer may be traced in the period of 3-5 leaves, and 10 kg of urea may be recovered in the mu. 5, harvest: about 45-50 days after sowing, seedlings 12-15 cm high, there are 5-6 leaves when the first time between the close, that is, between the pull some dense plants. After another 20 days, when the plant height is 20-25 cm, a second harvest can be made at the base of 5 cm, and then the third harvest is performed when the collaterals grow to approximately 15 cm. 6, disease prevention and control: Leek disease resistance is stronger, the main disease is white rust, available Triadimefon or against the Sen Meng zinc prevention and treatment. Insect pests are aphids that can be eliminated by imidacloprid or by mist spray.