It is skillful to grow watermelons with vines. Which vines need picking?

After the first watermelon harvest, we must pay attention to cutting off the old vines in time to promote the growth of new vines, so that watermelons can bloom and set fruit more regularly and facilitate the management of watermelons. Only by cutting off the old vines will the new vines grow better and faster. Generally, the functional period of watermelon leaves is about 50 days, even if it does not turn yellow in the future, the assimilation function is very low. Therefore, after the first crop matures, the main fruiting vine at the base, its old leaves and diseased leaves should be cut off, but 2-4 nodes should be kept to promote the appearance of side branches.

Leave the main vine of watermelon, choose two relatively strong lateral branches from the lateral branches growing at the root position, and pinch off unnecessary vines. This way, the watermelon yield is high, which is suitable for sparse Gua Tian. Double vine pruning is suitable for close planting, barren land and early farming. Operation method: On the basis of retaining the main vine, keep a thick lateral vine at the base of the main vine, divide it into 3-5 sections, and then remove all other lateral vines. Pruning with sharp pruning shears makes the wound small and smooth and easy to converge. At the same time, the base of the trimmed part should be 3-5cm long to prevent the wound from rotting and affecting the main vine. Pressing vines can make melon vines evenly distributed in the field, make full use of light, and also play a windproof role. In addition, vine pressing can also adjust the relationship between vegetative growth and reproductive growth, promote fruit growth, and produce adventitious roots on the stem nodes of melon vines. Trim three vines: in addition to the main vine, choose two healthy side vines at the base of the main vine, and pull out the rest at any time. This pruning method has high fruit setting rate and single fruit weight, and is widely used in low-density and high-yield cultivation with a yield of less than 600 plants per mu.

The flowering period of watermelon seedlings is around June every year. After the flowering period, the plants will enter the expansion period, and then they can be pinched. The flowering period of watermelon is 1 month to February, which is about July in summer. For watermelon growers in the north, because the rainfall is relatively small, growers can use dark pressure. Growers can dig shallow ditches with shovels and then press melons into the soil. For watermelon growers in the south, because of the heavy rainfall, growers can use open pressure.