Using greenhouses to replant winter lettuce and early spring pepper can increase planting efficiency.
Lettuce selection of disease-resistant, high-yield, cold-resistant lettuce varieties. From late August to late September, planting seedlings in small arches. After the sowing, the shed film ventilation at the end of the day and the covering of the sunshade net reduce the temperature, and it is necessary to cover the shed film when there is rain at night. From seedling to seedling stage, shading is needed during the day to create an ambient temperature suitable for lettuce growth. Try to control the watering, no drought, no water, in case the seedlings grow. The seedlings were planted in the greenhouse at 35 days. The amount of organic manure per acre of 5,000 kg of anaerobic fertilizer, 50 kg of ternary compound fertilizer, soil preparation to do hoeing, planting spacing 50 cm, spacing of 35 cm, planting about 3500 per acre. Water immediately after planting. When the greenhouse temperature exceeds 20°C, ventilation is maintained during the seedling period, and the temperature within the greenhouse shall not exceed 25°C during the daytime and 3°C to 10°C during the night. After the temperature drops, cover the straw insulation at the night before and after the start of winter, and take double membranes at low temperatures. cover. For fertilizer management, the method of lightly lifting seedlings and re-applying open fertilizers was adopted. Pay attention to the prevention of diseases such as downy mildew, sclerotia, and soft rot. Use 64% antiviral 500 times liquid to prevent downy mildew, use 40% sclerotin net 1000 times to control sclerotinia, and use 90% neomycin or 72% of agricultural streptomycin 1300 times to control soft rot.
Pepper used high-yield, disease-resistant Haifeng 68 extra large horn pepper varieties. From late October to early November, seedlings are planted in greenhouses. During the nursery period, double membranes were used to cover and cover the double-layer grasshoppers. Seedlings 3 leaves 1 seedlings at the heart stage, colonization when buds appear, seedling age of about 100 days. After the lettuce is harvested, fertilize and do it in time. 2. In the middle of the month, the temperature in the shed is stable at 10-12°C, and the planting distance is 60 cm, the spacing of plants is 35 cm, and 3000 plants per acre are planted. After planting, pour a gentle seedling water, and cultivating 2-3 times, after the emergence of seedlings. After the door pepper sat, combined with watering urea 7.5 kg per acre, potassium sulfate 4-6 kg; full fruit every 7-10 days pouring 1 small water, once every 1 water application of fertilizer, Every mus with water flushing urea 5-10 kg, potassium sulfate 8 ~ 10 kg; harvesting time combined with water topdressing DAP 15-20 kg. The daytime temperature during the seedling period is kept at 28-32°C and kept at 18°C-20°C during the night; the result is kept at 25-30°C during the day and 18-20°C at night. During plant growth, the relative humidity was adjusted to 50%-70% by controlling the watering and ventilation. The following lateral branches and old leaves were removed in time. The diseased leaves and old leaves were removed timely in the middle and late stages of plant growth to facilitate ventilation and light transmission. The main diseases of pepper are the disease and brown spot. With 25% Amisida 1500 times or 64% antiviral 500 times, or Jin Lei 600 times to control the disease, with 77% to kill 1000 times or 50% thiophanate-methyl 600 times to control brown spots disease. Peppers and peppers are harvested early to prevent falling. Harvest fruit in time, so as not to affect the fruit set on the top of the plant.
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