June and July coincided with the critical period of the flowering of the watermelons in the open season. Due to the high temperature and raininess, combined with improper top dressing, it was easy to cause the plants to be long, ie “crazyâ€. If there are signs of “crazy†development, measures should be taken early to control the situation. long. Here are some ways to control the growth of plants: First, a 7-10 cm deep pit is to be dug by the counter pressure method, tighten the stem vines by hand, and push the pits in the direction of the melon root so that the vines in the back will arch upward. Then fill in real shots. This can effectively control the growth and increase the flowering rate during flowering. Second, the pressure leader finds that watermelon stems are high-warped, that is, digging a deeper vine in the ground near the tip of the stem, pressing the stem into the groove, so that the tip of the stem exposes 5-10 cm of vines, which is effective. Controls the apical dominance and suppresses plant growth. Third, the end of the pan head watermelon into the fruit after the expansion period, the vine before the vine to be properly inhibited, can not make it prosperous, a waste of nutrition. The method is to pull back the vine before the vine, circle it on the side of the watermelon, and remove the vine. After such treatment, the plant growth will be inhibited for a while, but it will not hinder the growth and development of watermelon in the later period. Fourth, spray dilute amine sprayed dilute amine in the 1-2 days before swelled melon water, can effectively control the "madness", so that the melon vine-like without prosperous.