1. Nutrition formula When growing seedlings, nutrient soil is best mixed with onion, garlic, sand, and composting in a ratio of 2:2:1. In the nutrient soil, 80 grams of cubic meters of chlorpyrifos and other drugs are added to the nutrient soil. About days sterilization and pest control. Then put it in the nutrition bowl and evenly put it in the nursery pot to wait for sowing. 2. Seed treatment Before sowing, we must remove unfilled seeds, soak the seeds in cold water for 5 minutes, then soak them in warm water at 55°C, and continue to stir until the water temperature drops to room temperature, stop stirring, and soak for 4 to 6 hours. . Place the germination box, adjust the temperature of the germination box to 32°C to germinate for 12 hours, until most of the seeds are white and ready for sowing. 3. Sowing Seed sowing in mid-to late-February. Before sowing, the irrigated nutrient pods are irrigated and sowed. After the ground temperature rises, they are sown. Each pod is seeded with 1 seed, and the seeds are evenly covered with a sieve of 0.7-0.9 cm thick. Nutritious soil, then covered with plastic film. 4. Post-seeding management After sowing, the temperature is controlled at 30-35°C during the day and 15-20°C at night. When about 70% of the seedlings were unearthed, the mulch film was removed in the evening and gradually cooled after emergence. The daytime temperature was maintained at 25-30°C and the nighttime temperature was not lower than 15°C. The humidity of the seedbed is mainly controlled, and the water should not be poured or watered as much as possible on the basis of the pouring of the bottom water. After the seedlings are unearthed, the seedbed should be increased in light time as much as possible. The standard for planting seedlings is 40-45 days of seedling age. The main vine is thick, and the leaves are hypertrophic. When the cranberry grows 0.3-0.5 cm, it can be planted. Planting and field management 1. Soil fertigation The response of melons to organic fertilizers was good. After the sheds were applied, high-quality farmyard manure and nitrogenous fertilizers were applied: Phosphorus fertilizer: Potassium fertilizer 3:2:4. After the soil preparation, the sheds in the shed were raised to high ridges, the ridge width was 1.0 to 1.2 meters, and the ditch width was 50 cm. The ridge height is 10 cm and the mulch is covered to ensure warming and waiting for planting. 2. Colonization Colonization is generally carried out in mid-to-late March. The 10 cm above ground temperature in the arch shed is stable above 12°C. The daily average temperature can be set above 18°C, and the weather can be selected with fine weather and high temperatures. When planting, the general plant spacing is 40-50 cm and the colonization density is 22500 hectares. 3. Management after planting (1) Temperature and humidity management The temperature and humidity in the protection zone are adjusted by the increase or decrease of the covering and the size of the outlet. Specific indicators: vegetative growth temperature 25 ~ 30 °C, at night not less than 15 °C, ground temperature 15 ~ 18 °C; flowering temperature 27 ~ 30 °C, night temperature 15 ~ 18 °C, temperature 15 ~ 18 °C; fruit enlargement period Alum temperature 27 ~ 30 °C, night temperature 15 ~ 20 °C, air relative humidity should be controlled at 50% to 70%, in order to facilitate the accumulation of sugar and early maturity of melon. (2) Lighting Management The melons are delighted and need bright light and sunshine for more than 12 hours. The light saturation point is 55-60 lux and the compensation point is 4 lux. Early spring is in a short-day, weak light intensity season, the formation of photosynthetic products less vulnerable to weak seedlings. Therefore, the seedlings should strive for light time as long as they are free from frost damage. They should keep the film surface clean and increase the light transmittance. When cloudy conditions should be met, diffuse light should be seen more often when conditions permit. (3) fertilizer and water management On the basis of applying base fertilizer, fertilizers are usually topdressed once before flowering, mainly based on compound fertilizers, such as cake fertilizer and diammonium phosphate. If the base fertilizer is adequately applied, it may not be top dressing. In the late growth stage, the plant's absorption capacity of the root system declines. The 0.5% nitrogen, phosphorus, potassium and 0.2% boron, manganese, and zinc solutions can be used to spray fertilizer on the leaves, which will help improve the fruit quality. In order to promote the easing of seedlings, the moisture should be more in the 4 to 5 days of planting, and then the amount of irrigation should be controlled according to the fertility conditions. The watering should be controlled during the flowering period. The results will increase the amount of water in the middle period and control the watering again in the mature period. The film can be used to control the air humidity. The form of drip irrigation. (4) Plant Management In order to make full use of space, increase the planting density, increase the number of fruit set, and increase the yield, it is better to adopt the method of cultivation and management of hanging vine pruning. There are two methods for hanging vine pruning: one is the main vine single stalk pruning, when the main vine grows to about 5 centimeters after planting, the main vine is hoisted with a rope, and the main vine is continuously growing, and the vine is close to the vine. At the top, try to pick it up. Generally, the height of the fruit setting and the number of fruit set can be determined according to the strength of the plant. Usually a side vine keeps only one melon, leaving 2 leaves after the melon will pick the side vine; the other is the main vine Topping, pre-management is the same as single-handed pruning, but in order to promote early-onset, early-onset, early-harvest sidewings, the first topping is performed when the main vine grows to 10 to 15 leaves, and then a robust one is selected at the top leafhopper. The side vines, as the main vine, continue to climb on the ropes and perform the second picking when the new main vine grows to the top of the rope. During the period, the side vines that emerged leave a pointed tip of the leaves. In order to prevent mechanical damage to the plants, the twigs are pruned. Choose to be sunny at noon. Pest Control The main pest control in the field is mostly prevention. When planting, it is necessary to select disease-resistant varieties, strengthen cultivation and management, and implement three-year crop rotation or one-year rotation with non-guaranteed crops for one year; pay attention to the removal of field diseases and residues, apply sufficient organic base fertilizer, and timely supplement the top dressing during the melon period. Good field drainage, ventilation and dehumidification. The 70% thiophanate-methyl WP can be soaked for 30 minutes at 700 times, and the seeds can be sowed after purging. To protect the natural enemies of pests, it is best to use biological pesticides. In the best period of prevention and control, high-efficiency pesticide application techniques should be adopted for prevention and control.
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