In the whole growth process, the proportion of main nutrients required by melon is nitrogen: phosphorus: potassium: 30: 15: 55, which can be used as a reference for formula fertilization.
Melon is a potassium-containing plant. General 1000 kg of commercial melon needs 3 kg of nitrogen, 205 1.5 kg of phosphorus and 205.6 kg of potassium.
Secondly, continuous cropping of melon in greenhouse is more common now, and germs are easily spread through soil. Resulting in a sharp drop in output.
Soil disinfection is needed.
Using high-temperature disinfection to kill pathogenic bacteria, and using calcium cyanamide or Weibaimu at high temperature for half a month during crop replacement from June to July can kill most pathogenic bacteria in the soil, and at the same time, attention should be paid to supplementing microbial fertilizers (agents).
Talking about the pruning skills of melon.
If the pruning is not good, the eggs and melons will be scattered if there are more flowers and fewer melons. Therefore, pruning is an important job to promote sitting early and sitting well.
Generally, when the main vine grows to 4 or 5 leaves, it is necessary to pick the core to promote the growth of 3 or 4 lateral vines, leaving a strong main vine and cutting off all the others. Use the left vine to sit on 3 or 5 melons and pinch the tips.
Seed melons with lateral vine 1 and 2. If there are no melons on one vine, you can continue to leave 1 and 2 knots for topping.