Prevent towel gourd from breaking stubble and rest seedlings in the early morning

The environment with too long light time in summer is different from the growth habits of towel gourd, which is the main reason why there are few female flowers and it is difficult to set towel gourd in summer. Towel gourd is a short-day plant, the current sunshine time is too long, which suppresses the flowering conditions of towel gourd, which will lead to poor flower bud differentiation and decrease of female flowers. Therefore, in the summer towel gourd management, attention should be paid to shortening the sunshine time. Can be covered in the shed sunshade net or grass grass son, the appropriate time to cover before 8:00 in the morning. At the same time, although towel gourd likes temperature and heat resistance, but the current high greenhouse temperature, often more than 40 ℃ during the day and more than 25 ℃ at night, is not conducive to the growth of towel gourd. In particular, too high night temperature will greatly increase respiratory consumption, towel gourd plants are easy to grow, the stem is thin and weak, and then it is easy to have the problem of fruit setting. Therefore, in the summer towel gourd management, it is necessary to strengthen the temperature control, so that it is not only conducive to the growth needs of towel gourd, but also will not cause excessive night temperature. The daytime temperature can be controlled by ventilation, shading and water spraying, so that the daytime temperature can be controlled at 30 ℃ ~ 35 ℃ and the night temperature should be reduced to about 20 ℃ so as to avoid excessive consumption of nutrition. In addition, the vine fall is not timely, the range of vine fall is too small, it is also easy to lead to towel gourd vegetative growth overgrowth and difficult to sit melon. Therefore, summer towel gourd needs to strengthen vine fall management. For the middle and late spring stubble towel gourd should be accompanied by picking the gourd and picking the heart in time to fall the vine; for the early growth of the summer towel gourd in time to fall vine at the same time, increase the range of falling vine, each fall vine not less than 80 cm, keep the plant height at about 120 cm. In order to promote towel gourd sitting gourd, it can also be combined with hormone regulation. For over-summer towel gourd, plant growth regulators (such as ethephon, etc.) can be sprayed early to promote female flower differentiation and improve flower formation rate. For prosperous plants, it can be sprayed with 2000-fold solution of 5% daizhuangsu or 750-fold solution of 25% zhuangsu, and so on.