Method for increasing yield and sweetening in watermelon cultivation
First, increase boron fertilizer
According to the test, the application of boron fertilizer in watermelon, melon vine without the application of boron fertilizer 0.24 meters longer, flowering 3 days in advance, the rate increased by 7.4%, 11.7% increase in yield, sweetening 0.7 degrees. Boron fertilizer can be used as a base fertilizer in watermelon, top dressing fertilizer application: 1 base. 0.5 kg to 1 kg of borax per acre, or 3.5 kg to 7 kg of boron magnesium fertilizer, or 15 kg to 20 kg of boron sludge, mixed with appropriate amounts of nitrogen and phosphorus fertilizer, and turned into soil when soil preparation. Generally do not use furrows or acupuncture, so as to avoid local soil boron concentration is too high and have a toxic effect on watermelon. 2 top dressing. Foliar spraying with 0.1% to 0.2% borax solution.
Second, the application of watermelon
Watermelon is a kind of new kind of watermelon special liquid concentrated compound fertilizer which is based on trace elements such as boron, copper, zinc, manganese and cobalt. It is suitable for the production of nitrogen, phosphorus, potassium, magnesium and other nutrients. After the application of watermelon, the seedling period can be advanced by 1 day, the emergence rate can be increased by 10%, the fruit setting rate can be increased by 7.7% to 10.1%, the yield can increase by 6.5% to 21%, and the sweetness can be increased by 0.69 degrees. Application method: First, use 300 to 500 times the watermelon seed soaking for 12 hours; the second is to use 200 to 300 times the watermelon liquid in the watermelon seedling stage, sit melon period and the expansion of the melon period foliar spray, seedling Mu spray 40 kg , Zuogua period and the expansion period of 50 kg to 75 kg.
Third, spraying plant cytokinins
The use of "5406" antibiotics to extract plant cytokinins by industrial fermentation can promote the formation of chlorophyll and protein synthesis, and increase the photosynthesis and stress resistance of plants. Applying on watermelon, the satiety rate can be increased by 19.5%, the sugar content is increased by 0.5 degrees to 2 degrees, and the yield is increased by 28.6%. The utility model has the effects of reducing diseases and promoting premature ripening. Application method: The main use of foliar spray, from the melon vines to the beginning of the 7th ~ 8th section, with 600 ~ 800 times the liquid every 7 days ~ 12 days spray once, spray a total of 3 ~ 4 times.
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