How to prevent watermelon from being long

The overgrowth of watermelon vine leaves will cause the growth center to shift, and the nutrition is concentrated on the growth of vine leaves. The performance on the plants is called leggy, which is also called running vines, madness, and prosperous growth. After a long watermelon, it usually shows thick and brittle vines and long internodes; petiole is thin and long, leaves are thin and long, leaf color is light, female flowers are delayed, and it is not easy to seat melon; when female flowers are open, melons are fine and short The ovary is small and easy to shrink. The following measures are commonly used in production to control watermelons:
(1) Control of water and nitrogen fertilizer: excessive application of fertilizer and water, especially excessive nitrogen fertilizer. When phosphorus and potassium fertilizers are insufficient, it is easy to make plants grow. The improper use of fertilizer and water can also cause leggy. For example, in front of the melons, the fertilizer and water are too large and the nutrition concentrates to supply the vine leaves. The growth center cannot be transferred from vegetative growth to reproductive growth in time, and thus the prosperous people get more prosperous and the weaker people get weaker. If nitrogen fertilizer and moisture are controlled, vegetative growth can be inhibited and the growth center can be transferred to reproductive growth in time. According to experiments, the distance between the nodes of the female flowers and the tip of the vines is a sign of whether the growth center is transferred or not. When the female flower is open, the growth and development of the female flower to the growing point is 25-30cm, showing a harmonious development. When the distance from the female flower to the growing point exceeds 25-30, it indicates that the growth is too prosperous, the internodes are longer, and it is not easy to seat the melon. It is proved that the growth center is still in the aspect of vegetative growth without transfer;
(2) Plant adjustment: The adjustment of the nutrient distribution of watermelon plants to control vigorous vegetative growth through pruning, vine pressure, and topping, etc., can promote early flowering and early squash. Practice has proved that the melon vine before the head of the vine vine pressure, that is, deep pressure, pressure or pressure with a larger piece of soil in the melon vine close to the growth point of about 2cm, can control the growth of melon vines. Especially when the plant growth is too prosperous and has caused serious growth, measures such as near-head pressure are adopted to control the growth of vine leaves and promote the seat guarana to have significant effects. In addition, when the melon fetal growth to the size of the egg, in order to save organic nutrients, can take measures to control the growth of melon vines, accelerate the expansion of watermelon, promote early maturity. If the female buds are found in the main vines at the 12th to 15th centuries, and the plants have a tendency to grow indefinitely, the growth points can be found at the 5-6 leaves in front of the flower buds of the female flowers (the melon vines are at the front and the plants are at the rear). Nutrition concentrates on female flower development. After this treatment, the ovary can be significantly enlarged, effectively increasing the rate of squash. During the flowering period of watermelon, often due to improper management of fertilizer and water or abnormal climate, so that the guava vine grows, female flowers are not well developed and can not be normal seat melon. Therefore, timely picking up can effectively prevent falling flowers and promote fruiting, otherwise the effect of picking up the heart is not ideal. After the main vine has picked up its heart, if the heart breaks off after flowering, it should stay in the lateral vines and pick up the heart after showing the female flowers to promote the pods and ensure that each pod is covered.

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