Boron fertilizer is one of the indispensable trace elements in the growth and development of watermelon. The lack of boron in watermelon plants will reduce the yield, reduce the sugar content, and it will appear as budding or flowering. When the boron deficiency is severe, the female flower will also be detached from the spermatozoa, resulting in severe reduction of production.
The method of spraying boron fertilizer on watermelon is simple and the cost is low. The method is: as soon as the seed fertilizer is used, 0.5 kg of borax per acre is used, and 10 times fine soil can be used to spread the seeding ditch. The second is to extend the watermelon and extend it. Bud stage spraying 0.1% -0.2% borax aqueous solution each time, to spray until the water leaves of the melon leaves, promote the flowering and solid watermelon.
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