Hydroponic melons have high yields:
Pruning fruit. Hydroponic melon is cultivated on a stand, with double vines. After planting, when the seedling grows to 4 leaves and 1 heart, the heart is topped. When the vine grows 10 to 15 cm long, choose 2 growable and strong vines on the shelf, and the rest are cut off. When the sub-management section grows to 25 knots, the topping is selected, and the two vines are selected from the 8th to the 12th. After Sun Man sits on the melon, leave 2 leaves to pick the heart. When the young melon grows to the size of the egg, the melon is sprayed, and the squash is used to increase the nutrient transport and promote fruit development.
Temperature control and humidity control. Melon nutrition and reproductive growth are in the high temperature and strong light season from August to September. Installing a rainproof shed on the roof can reduce the intensity of sunlight radiation, reduce the temperature inside the shed and maintain the humidity inside the shed, so that the daily temperature in the shed is 28 °C ~ 32 °C, the night temperature is 20 °C ~ 25 °C, the relative humidity of the air in the shed is Less than 75%.
Pest Control. For the prevention of aphids, viral diseases and blight, insect-proof net cover technology and hydroponic technology can be used. In the early stage of melon planting, the root disease 800 times liquid + tree guard general root can prevent melon disease; in the later stage of growth, powdery rust powder + new high fat film spray can prevent powdery mildew.
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