First, to grow age seedlings 1, build a seedbed. Formulated nutritious soil. The seedbed is built in a greenhouse. The nutrient soil is selected from paddy soil that has not been grown with melon crops within 5 years. After being dried and cracked, it is sieved and mixed with 30% decomposed organic fertilizer and appropriate amount of N, P, K compound fertilizer, and then 500 times. "Carbendazim" is disinfected into the plastic nutrition bowl. 2, timely sowing. The common head lice melons are sown in mid-December, the second pods of watermelons are sown around April 20th, and the three pods of watermelons are sown no later than July 20. Before sowing, we must strictly carry out seed disinfection and germination. 3. Strengthen seedbed management. After seeding, the temperature and humidity of seedbeds should be well controlled to prevent tall seedlings. After the first true leaves are flattened, the seedbeds should be kept dry to prevent the seedlings from growing. When the head of the first melon seedlings really leaves flat, it is necessary to timely picking the heart to inhibit the growth of the top edge, and promote the growth of axillary buds. 2-3 days before planting, do a good job of ventilation and hardening seedlings to improve the resilience of the seedlings, shorten the period of seedling sowing, and release vines earlier. Second, planting 1, fertilizer melon bed. In the field of melon field, it is advisable to choose a rice paddy field with convenient drainage and irrigation, high ground and high organic matter content, plowing and weathering before winter, and building a greenhouse in the first half month before planting, and apply sufficient organic manure, not less than 5000 kg per mu, and at the same time Appropriate amount of N, P, and K fertilizers were used as surface fertilizer before planting. 2, suitable age transplanting, reasonable dense planting. According to the different cultivation seasons and cornices, the appropriate age and transplanting density should be mastered. In the early spring, the melon cultivars are suitable for 40-50 days, the colonization density is 600-650 plants/mu, the summer cultivars are about 30 days old, the leaf age is four-leaf, the planting density is about 300 plants per acre, and the late watermelon planting age is In 20 days or so, the leaf age two leaves, the colonization density is not less than 450 per mu. 3. Strengthen seedling management. The focus of planting to live trees is to regulate the temperature and humidity in the melon shed. The temperature in the shed during the day is kept at 28-32°C, and it is maintained at 14°C or higher at night, and the ground temperature is maintained at 18°C ​​or higher. Generally, the water temperature is not watered and no ventilation is provided. After the live tree is properly ventilated, the light is increased, and the melon seedlings grow vigorously. Third, the branches introduced vines, reasonable leaf area melon to Sun Mangua melons, leaving about two sub-vines per plant, where the child was born before the sixth quarter of the Sun Man should be promptly removed, and the vine straight, evenly to It helps to increase photosynthetic efficiency, maintain consistent growth, and promptly tops the melons; watermelon is dominated by stalks and vines, and the principle of triple vine pruning is generally adopted to grasp the principle of leaving a vine at a distance of 20 cm. All the vines before the melons are removed in time, and the vines after the melons are not removed. Fourth, pollination melon male and female flowers with the same strain, but the female is a bisexual flower. Under greenhouse cultivation conditions, melon melons in spring are mainly sprayed with "Zuoguo Ling", and generally seated melons are started in the eighth quarter. When the sun maiden flowers in this section are open, "Zuoguo Ling" should be sprayed in time. The watermelon is male and female with the same plant and pollinated by insects. However, under greenhouse cultivation conditions, the number of indoor insects is small. In order to increase the rate of seated cucumber, artificial pollination is mainly used. Generally, the second female flower begins to open, and artificial pollination is performed every day according to the male flower pollen maturity and germination time. Fifth, fertilizer and water management West cantaloupe planting live trees to extend the vine should be controlled watering, the general dry weather interval 3-4 days watering once, when the first female flower is open, in particular, to control the water fertilization, so as not to affect the vine Prosperous and cause melons. After the fruit is grown to the size of the goose egg, the fruit fertilizer is chased once, and the fertilizer is mainly potassium fertilizer. Generally, 5 kg of urea and 10 kg of potassium fertilizer are applied per mu and the water is poured. In the rainy season, typhoon and autumn rain season, the drainage will be wet, and the sheds will be kept dry to prevent the sheds from suffering excessively high humidity and causing diseases, rotten melons, and fruit cracking. VI. Diseases and Insect Pest Control The common diseases of the common melon include: damping-off during seedling stage, anthrax, downy mildew, etc., blight after fruit set, powdery mildew, viral disease, bacterial angular spot, watermelon leaf Blight and gummy blight. Common insect pests include melon borers, greenhouse whitefly, melon jujube, persimmon red spider, tea yellow cockroach and guava horse. Usually we must carefully observe and carefully identify, so that the prevention and treatment of the disease as soon as possible.
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