Cultivation of eggplant in greenhouse

L, select long eggplant varieties such as Jiga No. 1 (middle and late maturity), Longqie No. 1 (early maturity) and so on.

2. Sow the strong seedlings in August and plant in September. Soak the seeds with 0.2% potassium permanganate solution for 15 minutes before sowing, soak them in 55-60 ℃ warm water after repeated washing, and stir them continuously. When the water temperature drops to 30 ℃, soak for 8 hours, wash off the mucus on the surface of the seed coat, wrap it in a wet cloth and accelerate germination at 25-30 ℃, turn it 2-3 times a day, and sow seeds when 50% germinates. Cover 1-1.5cm fine fertilizer soil, spread a layer of fine fertilizer soil after the seedlings, appear true leaf time seedlings, and properly control water to prevent overgrowth at seedling stage. Water once 10-15 days before planting, cut tuo 1-2 days later, spray 0.2% potassium dihydrogen phosphate or 0.3% urea 3-5 days before planting, spray 2000 times of permethrin to prevent aphids, 6000 times solution of chlorothalonil to prevent downy mildew. 3. The cave shed was disinfected before site preparation and colonization. Each cubic meter of space was fumigated with 1 gram of chlorothalonil plus 8 grams of sawdust by dark fire at 7 p.m., or 4 grams of sulfur plus 0.1 grams of 80% dichlorvos and 8 grams of sawdust, ignited evenly, closed for 1 day and night, and then kept warm for planting. After disinfection, mature organic fertilizer 5000kg compound fertilizer 50kg was applied per mu of greenhouse, deep ploughing soil preparation, large and small row ridge planting, large row spacing 60cm, small row spacing 50cm, plant spacing 40cm, planting ditch depth 5-6cm, planting about 2700 plants per mu, or single row ridge planting, row spacing 60cm, plant spacing 30-35cm, 3000-3500 plants per mu. First bury the shallow soil, survive the slow seedlings, then cultivate them into ridges, and cover them with plastic film. 4. Management (1) temperature management slow seedling to blossom 25-30 ℃ in daytime, 15-18 ℃ at night, 25-30 ℃ in flowering and fruiting period, ventilation and cooling above 32 ℃, night temperature about 18 ℃, ground temperature above 15 ℃. (2) Fertilizer and water management, after watering enough slow seedling water, properly control fertilizer and water in front of door eggplant "staring" (walnut), ploughing and squatting seedlings, start watering and fertilizing when door eggplant "stare", apply 800-lOOOkg of human feces per mu or urea 10-15kg per mu. After eggplant harvest, watering once every 7-8 days, once every two weeks. (3) double-pole pruning is used, that is, after the eggplant is formed, two outward lateral techniques are cut off to form an upward double trunk, and then all the lateral branches are knocked out, and the heart is picked to promote early maturity after 7 fruits. If the cultivation is delayed, after 7 fruits are harvested, the soil is loosened, fertilized and irrigated after cutting the oblique stubble from the main pole to the ground 10cm, and the strong branches are selected to leave double poles. (4) auxin treatment to prevent falling flowers and malformed fruits, using 30-40m ∥ liter 2.4D liquid to coat flowers or 0.02% anti-falling hormone solution spray. (5) 72% agricultural lianmycin 4000-fold solution was used to control bacterial diseases, and 50% carbendazim wettable powder was used to control root rot and other diseases. 5. Tender fruits can be harvested 20-25 days after flowering, and eggplant can be harvested in time so as not to affect plant growth and subsequent fruit development.