Zucchini is a kind of vegetable with short growth period and fast effect. It has the advantages of better resistance to storage and transportation, higher yield, suitable for interplanting, and so on, so the cultivation area is expanding. In order to guide the majority of farmers, the production technology of the early spring zucchini is summarized below for reference. First, nursery 1. Variety selection. Generally used early maturing varieties, such as the new early young generation, early resistance to tender jade, jade beauty, pitot 4094 and so on. 2. Sowing period. Different regions have different climatic conditions and different sowing times. The sowing time should be determined according to the time of planting. Generally, it is better to set the temperature of the top soil (10 cm thick) in the shed above 10°C. The sowing time for greenhouse cultivation in Zhengzhou is generally in the middle and late January, and the sowing time for cultivation of small arches is in the middle or late February. 3. Sow. The best nutrition seedlings, seedlings with nutrient soil, soaked before sowing, until the water penetrates, with fingers in the soil surface into small holes, the seeds flat in the hole, covered with 1.5 cm thick fine soil, and then in the bed Cover the film with moisturizer. Second, seedling management before seedling management good seedbed temperature, generally controlled at 25 °C ~ 30 °C, when more than 70% of the seedlings unearthed after removal of the film. The daytime temperature after emergence was maintained at 18°C-23°C, and the night temperature was maintained at 7°C-15°C. The seedlings are planted 5 to 7 days before planting. The daytime temperature is maintained at 15°C to 20°C, and the nighttime temperature is maintained at 7°C to 10°C. Seedling watering generally see dry see wet. Third, colonization 1. Soil preparation fertilization. Each mu of high-quality farmyard fertilizer 5000 kilograms, chicken manure 1000 kilograms, superphosphate 50 kilograms, potassium sulfate 30 kilograms, ammonium bicarbonate 20 to 30 kilograms. After deep-turning the land, a large row of 70 to 80 centimeters, 50 to 60 centimeters away from the row, fertilizes, fertilizes the soil and mixes the soil and ridges on the row. The ridge height is 15 to 20 centimeters. 2. Colonization. 10 to 15 days before planting, the house is warmed and the ground temperature is stable at 10°C or above. On the ridge, 40 to 50 centimeters of planting distance was used to plant seedlings and water was planted. After covering the soil, the seedling shoots were flat with the ridge surface, and about 2200 seedlings were maintained per mu. Fourth, field management after planting 1. Water ploughing. After easing the seedlings, the ditch is watered. When the root melon grows to 6-7 cm in length, the topdressing and watering are performed for the first time. After the start of squashing, water once a week, topdressing once every two weeks, and increase fertilizer and water management during peak production. 2. Temperature control. 7 to 10 days after planting, the house is warmed to increase temperature and promote seedlings. Conditional night can cover grasshoppers. When the weather becomes warmer and the temperature in the shed is too high, it is necessary to cool down in time to prevent high temperature injury. When the outside world average temperature is stable above 20°C and the minimum temperature is not below 15°C, the film can be removed. V. Early and timely harvesting of harvesting can not only increase the post-production, but also increase the economic benefits and avoid falling into eels. Under normal circumstances, when the single pomelo weighs 250 grams, it should be picked. Six, prone to problems and prevention methods 1. Squash early male flowers are generally few, greenhouse squash in the early stage of the cultivation of no insect pollination, which requires timely artificial pollination or hormone treatment, or Zucchini can not sit and a good expansion, There is a phenomenon of sharpening the tip of the melon at the front end. 2. For early fruiting resistance, such as early resistance to tender jade and jade beauty, such as early zucchini varieties, need to be sparsely flowered and thinned during spring cultivation. Due to the low temperature in early spring, the vegetative growth is relatively weak. If you stay in Guadalupa, you may fall into the pods. As a result, the plants will not develop fully and will make all the cucurbits not grow much. If you plant them in the fall, you do not need to go to the female flowers. 3. In the pre-growth stage, bacterial diseases are prone to many kinds of diseases, and it is recommended to use agricultural streptomycin and mancozeb mixed solution for prevention and treatment. In the middle and late stages, attention should be paid to the control of powdery mildew.
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