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When planting, the large row spacing is 60-65 cm, the small row spacing is 50-55 cm, and the plant spacing is 40 cm. When planting, first draw shallow ditches in the shed in the north-south direction according to the row spacing, the ditch depth is 3-5 cm, and then the melon seedlings are arranged along the shallow ditch according to the plant spacing, and the soil on both sides is built into a high ridge with a ridge height of 20 cm. The width is 30 cm, and then it is covered with a plastic film to facilitate heat preservation, prevent water evaporation, reduce the humidity in the shed, reduce disease, and promote the healthy growth of seedlings.
Environmental adjustment: During the period of planting slow seedlings, the shed should maintain a higher temperature, 25℃-30℃ during the day and 18℃-20℃ at night; after the slow seedling, the temperature should be properly cooled, 25℃ during the day and 12℃-15℃ at night; , Increase the temperature appropriately, 25℃-28℃ during the day and 15℃ at night; during the severe winter, the temperature should be kept at 28℃-30℃ at noon to prevent the night temperature from being too low. After the cold winter, increase ventilation and restore the temperature management standard before the severe winter.
The adjustment of humidity and gas should be carried out in conjunction with temperature management. Measures such as ventilation and cooling, the use of non-drip film, and covering with mulching film during planting can significantly reduce the humidity in the shed. Timely discharge of harmful gases in the shed is conducive to the exchange of carbon dioxide outside the shed.
Fertilizer and water management: After planting the zucchini, water it thoroughly, control the water to bloom and set the fruit; after the first melon sits, water the first water, and the subsequent water management is carried out according to the principle of watering the flowers and not the melon; the water demand is large during the fruiting period. In the cold winter season, watering should be as little or as little as possible to prevent lowering the ground temperature. When the growth of summer squash is accelerating, top dressing should be carried out, combined with nitrogen, phosphorus, and potassium, and more potash fertilizers should be applied. 300 kg of diammonium phosphate and 400 kg of potassium sulfate per hectare should be applied. Later, top dressing and urea should be used alternately.
Pruning: In the middle and late stages of growth, the vines are creeping on the ground. In order to fully receive the sun, the vines must be suspended and the diseased, damaged, old leaves, lateral buds and tendrils must be removed in time to avoid diseases and consume excessive nutrients.
Pest control: To prevent and control downy mildew, 45% chlorothalonil aerosol can be used to burn the mist at the initial stage of onset; it can also be used for prevention and control with 75% chlorothalonil wettable powder 600 times liquid.
Prevention and control of virus diseases: spray pesticides to kill aphids at the seedling stage, and spray 1.5% Phytophyllum 1000 times solution at the initial stage of the disease, spray once every 5-7 days, spray two or three times.
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Zucchini planting technology
Reasonable planting of zucchini: The seedling age is generally 25-30 days, and the seedling grows to 2 leaves and 1 heart or 3 leaves and 1 heart. The standard for strong seedlings is that the seedlings are short and strong, with thick leaves, short stalks, and well-developed roots.