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First, seed treatment soak malt. The seeds were wrapped in gauze and soaked in cool water for about 1 hour. Then they were picked up at 15-20°C. Or on the refrigerator in the home, time 2 to 3 days, the seeds can be sown after exposed white. Use 20 to 25 grams per acre.
Second, seedbed preparation Seedbed selection of high dry terrain, water retention and fertilizer capacity of the land, apply more organic fertilizer, per acre cultivation of seedbed 15 to 20 square meters.
Third, the sowing is generally sown in mid-late September. When sowing, mix the seeds with appropriate amount of fine sand, separate the seeds, and then spread the seedlings. Be careful not to squash it in order to prevent leggy growers. Cover the seeds with a 0.5-cm thick phoxim-contaminated soil, and construct sun protection and rain protection.
Four seedling management seedlings grow two true leaves when the seedlings, transplanting density 6 cm 6 cm. The seedbed remains moist and shaded at noon. Pay attention to pest control during seedling stage.
5. Site-planting of oil and wheat vegetables is planted in greenhouses in about 25 days after sowing and 5 to 6 true leaves are grown. Before the planting, the maturity of the organic fertilizer is 3500-4000 kg per mu, phosphorus is 20-25 kg, nitrogen is 40-50 kg, and potassium is 10-15 kg. Pu Shi after the preparation of earthworms, lotus root width of 1 to 1.5 meters, plant spacing 10 cm 10 to 15 cm, planting 40,000 to 50,000 per mu. After transplanting, planting water must be poured.
Sixth, management after planting (1) pre-closure management. After planting and easing seedlings, combine a small amount of available nitrogenous fertilizer with topdressing 1 to 2 times with watering, and apply urea or ammonium sulfate 5 kg per mu to promote plant growth. In the future, we should always keep the soil moist and weeding and weeding. (2) Post-stamp management. The oiled wheat dish is a fast-growing leaf vegetable, and the suitable growth temperature is 18-25°C. When the night temperature is lower than 12°C, the shed is used. After the shed was tamped, the relative humidity in the shed was moderated in time. The relative temperature in a typical shed is preferably less than 90%. In the cultivation and management, cleanliness should be maintained and it is forbidden to use manure for dilution. In the early and middle stages of growth of oil-and-water lettuce, 0.3% potassium dihydrogen phosphate and urea solution were sprayed on the leaves for 3 to 4 times. During the entire growing season, top dressing is applied 2 to 3 times, and 5 to 10 kg of urea or 10 kg of ammonium sulfate is applied per mu, which is applied when watering. (3) Pest control. The pests are mainly aphids, which can be sprayed with 40% dimethoate EC 800 times; the diseases are mainly downy mildew and soft rot, with 70% mancozeb WP wettable powder 300 to 500 times and 0.02% agricultural streptococci respectively. Neutral solution spray control.
Seven, harvest oil and wheat dishes mainly eat young leaves. From late October to early January, when the number of leaves reaches 30 to 34, the height of the plants is 45 to 48 cm, and the degree of development is 60 to 69 cm, harvesting is carried out at a distance of 2 to 3 cm from the ground. Remove old leaves and diseased leaves and supply the winter market in time.
Cultivation Techniques of Autumn-Winter Oatmeal and Wheat Vegetables in Greenhouse
Oil and vegetable cultivation in greenhouses in autumn and winter, from planting to harvest only 40 to 45 days, the yield per mu can reach more than 3,000 kg. The key cultivation techniques to be mastered are as follows.