Choose a good variety. The selection of the variety to be matched to the road is mainly based on the watermelon varieties cultivated over the years, and the watermelon varieties that have the strongest adaptability to the local climate, soil quality and fertilizer, and the highest yield and the best quality are selected. Timely sowing, cultivation of melon seedlings. The key to cultivating thick young seedlings is timely sowing and adopting nursery seedlings for seedlings. In the middle and late period of nursery, more cover should be covered, and the night cover should be covered. Before 3-5 days of transplanting, the seedlings can be uncovered and cured in all weathers in order to cultivate healthy and robust melon seedlings. Apply base fertilizer. Watermelon needs a large amount of fertilizer, therefore, the application of high quality base fertilizer is the basis for obtaining high quality, stable production and high yield of watermelon. Per acre to apply fertilizer 1500-2000 kg, plus compound fertilizer (watermelon special compound fertilizer better) 25-30 kg. Fertilization method can be changed from the previous single-channel fertilization to double-channel fertilization, that is, in the middle of the car between 30-40 cm on both sides, each opening a deep, 20-30 cm wide groove, and then apply the fertilizer into the two ditch, above Cover about 5 cm of soil, the melon planted in the middle of the two fertilizer ditch. The benefits of this fertilization are: do not burn seedlings, but also prevent leggy, to expand watermelon sitting melon, the roots just extended to the two fertilization ditch, nutrient adequate, favorable rapid melon-shaped standard large melon. Timely transplanting, promote seedling growth. 30-35 days of watermelon seedling age, 3-5 true leaf transplanting is appropriate. When transplanting, 250 kg of diluted human feces and urine water was applied per acre to dredge the seedlings in order to stabilize the seedlings and promote the early growth of the seedlings. Pest Control. Blemishes, blight and anthrax are the three major diseases of watermelon. The seedling stage is used to prevent cataplexy. The seedbed should pay attention to ventilation and control of watering. Fusarium wilt and anthracnose prevention methods: avoid continuous cropping, generally 4-5 years interval, do a good job ditch drainage, found the diseased plants in a timely manner. Chemical control: Spraying with 75% chlorothalonil WP, or 70% of dexamethasone, or 20% thiazole, or Bordeaux, all have good efficacy. The main pests of watermelon are: Huang Shougua, tigers, aphids, and red spiders. Drug control methods are: the use of dichlorvos, dimethoate, trichlorfon and carbofuran respectively control, the effect is better. Scientific fertilizer, prevent leggy. Under the premise of applying the base fertilizer, only one application of human excrement 200 kilograms and urea 3 kilograms can be applied during the extension period. Due to flowering and fruit setting period, watermelon is very sensitive to water and fertilizer. If fertilizer and water are excessive at this time, the nutrition of the plant is excessive, and it is easy to cause leggy, which is an obstacle to sitting and stabilizing the melon. Therefore, when the young fruit has large eggs, it may be applied in appropriate amounts. Apply 10 kg of urea per acre, 10 kg of potassium chloride, and 40 kg of dried cabbage cake cooked through mash, 10-15 cm from the base of the stem, and beware of burning. Er, affect normal growth. Reasonably pruning and fight in time. The pruning of watermelon should not be too early, too early is not conducive to the growth of roots and vines. In the past, the melon farmer stayed on the side of the shortened section, because the short-throwing section was extremely strong, so that the main and lateral branches of the three vines went hand in hand. The performance of the main and sub-divided, the main vines turned into weak vines, and the future was bound to be detrimental to Chang Chengda. melon. Artificially assisted pollination and improved fruit setting rate. The watermelon is a cross-pollination crop that relies on insect pollination. However, female flowers only have the highest fertilization rates at 7-9 am. Through artificially assisted pollination, the fruit set rate can reach more than 98%. In the flowering period of watermelon, if it is raining day after day, it interferes greatly with flowering pollination. To prevent pollen from losing fertility due to the absorption of water, wear a paper hat to prevent rain on the afternoon of the day before the flowering of female flowers and male flowers. Even if it is raining in the morning, an umbrella must be used to complete the pollination. Afterwards, a paper hat is used to prevent rainwater. The paper hat is removed the next day after the rain stops so as not to affect the growth. Tea Cup Holder,Diatomite Products,Soap Dish Diatomite,Soap Diatomaceos Earth Dongguan Vanilla Bioengineering Co., Ltd. , https://www.healthecigarette.de