How to prune and press watermelon covered with plastic film

The cultivation of watermelon with plastic film mulching is easy to senescence in the later stage because of the rapid release of soil fertilizer. On the other hand, plastic film will produce high temperature burning vine phenomenon in the later stage of watermelon growth. Therefore, the root and vine base of the branch should not be too clean, so that it should play the role of covering and supporting, early-maturing varieties can not be branched. The open pressure method is used to press the vine above the plastic film, and the melon vine climbs over the plastic film to take root and flourish, so it is necessary to press the vine in time to regulate the relationship between vegetative growth and reproductive growth and promote fruit setting.