1, 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.
2, timely sowing
The key to cultivating thick seedlings is timely sowing, seed dressing with a new high-fat film (which can be mixed with seed coating agents), repellency of underground pests, isolation of virus infections, no effect on germination and ingestion, enhancement of respiratory intensity, and improvement of seeds. Germination rate. Take the nursery seedling nursery 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.
3, 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: not burning seedlings, but also prevent leggy, timely spray promotion Huawang No. 3, can transform the vegetative growth of plants into reproductive nutrition, inhibit the growth of the main shoots, promote flower bud differentiation, more flowering, improve pollen fertilization quality, More flowering, more fruit set, prevent fruit drop, promote development.
4, scientific fertilizer
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 top-dressed, combined with spraying Zhuangguti Ling to make Guatea thicker, to strengthen the directional delivery of nutrition, promote the rapid development of the melon body, melon type is beautiful, multi-flavored; the growth cycle is not Falling flowers, not falling melon, no crack melon, no abnormal melon. When the watermelon sits inflated, the roots extend to the two fertilization ditch. The nutrients are sufficient, and it is advantageous to quickly grow into a melon-shaped large melon.
5, disease prevention
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.
Chemical control: The use of dichlorvos, dimethoate, trichlorfon and carbofuran to control respectively, the effect is better.
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