Technology of pressing vine and pruning of watermelon

Vine pressing and pruning are the main technical links in watermelon cultivation and management. through vine pressing and pruning, land and light energy can be effectively used to regulate and inhibit the growth and distribution of watermelon stems, so as to improve the quality and yield of watermelon. 1. Invert seedlings and cultivate soil in the rhizosphere before pressing the vine. Before starting to draw the vine, dig a small pit 12 cm deep in the rhizosphere on one side of the climbing vine, so that the vine can be dumped in this direction. When the vine grows to about 30 cm, a small bowl-shaped mound is formed at the root, and gently pat, forcing the vine to crawl forward, and the direction is the easiest to climb downwind. Pressing the vine should start when the vine is 30cm long, and then press the vine every 30cm. After the fruit is enlarged, the vine leaves have covered the ground without the threat of wind damage, stop pressing the vine. However, it is necessary to press the new shoots climbing on the stems of other plants to the bottom of the leaves of other plants nearby at the right time, which is generally required to press the vine 5 Mel 6 times during the growing period. 2. The medium-maturing and early-maturing varieties of pruning small seed type are suitable for double-vine pruning. In addition to retaining the main vine, a strong sub-vine is selected at the 5th-7th nodes of the main vine. The two vines should be in the same direction and arranged evenly. At the same time of pruning, the ownership vines on the main vines and daughter vines should be removed as soon as possible. Each time you press the vine, all the young vines in the axils of the leaves between the vine and the root must be removed to the base. If you do not thoroughly remove the vines one by one, it will not be long before the branches grow, the guests will seize the master, the primary and secondary will be difficult to distinguish, intertwined and closed, and the melon will be affected. When the nutrition is mainly concentrated in the fruit growth in the later stage, but the stem growth becomes significantly weaker, the branching can be stopped. During the whole growing period, it forked for 5 times and 6 times. If the single vine is pruned, the plant spacing can be reduced to 45 cm. Single vine pruning without prepared vines and prepared melons, no room for manoeuvre, is not as good as double vine pruning. While pressing the vine, it should also be combined with weeding and killing pests. When the fruit is fully expanded, if the seedling vine growth is still strong, coring can be carried out. Otherwise, there is no need to pick the heart. In general, after the fruit expansion period, the growth of stem vines becomes significantly slower and weaker, and the new shoots no longer continue to grow. Due to the fragile growth of watermelon branches and vines, when pressing vines and pruning in the melon orchard, you should be very careful, come and go gently, do not hurt the stems and leaves, and do not step on the soil where the roots are concentrated.