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How to fertilize watermelon during its swelling period to make it bear more fruits?
Effect of spraying foliar silicon fertilizer during fruit expansion period

1, which greatly reduced the content of heavy metals in fruits. It can reduce cadmium absorption by 20%-50% and arsenic absorption by 20%-30% after being applied on moderately and lightly polluted land.

2. Effectively increase the output. After spraying, the branches and leaves are thick, the leaves are swollen and thick, which promotes the photosynthesis of crops, enhances the growth and development of roots and the effective utilization of nutrients, and makes the fruits bigger and sweeter. Reduce physiological diseases such as fruit drop, fruit shrinkage and abnormal fruit, and increase yield by 10-20%.

3. Reduce pesticide residues in watermelon and inhibit nitrate absorption. Improve stress resistance and pest resistance.

dosage

1, spraying period: spraying once at the late fruit setting stage and once at the swelling stage; Choose sunny or cloudy days to spray around 4 pm (at this time, the light and temperature are suitable, which is beneficial to crop absorption; If sprayed in the hot sun and high temperature period, the water evaporates quickly, which leads to the increase of fertilizer solution concentration, which can not be absorbed by crops and may even cause fertilizer damage)

2. Spraying dosage: 500ml/mu/time (500ml in a bottle), spraying twice in the whole period; Manual spraying uses 50- 100 times of water for foliar spraying, and unmanned aerial vehicle spraying uses 10-20 times of water for foliar spraying.