Loofahs in the summer sheds often suffer from problems such as severance, restlessness, and difficulty in sitting. It is necessary to strengthen early management of field management. The long sunshade time is the main reason for the low number of female flowers in the summer and the difficulties in sitting. Loofah is a short-day plant, long hours of sunshine will inhibit flowering conditions, resulting in poor flower bud differentiation, female flower reduction. Loofahs in summer sheds should pay attention to shorter sunshine hours, and shade nets or straw can be covered in the sheds. Although the cooling temperature loofah heat and heat, but the summer greenhouse temperature is too high, is not conducive to the growth of loofah. Especially if the night temperature is too high, the respiratory consumption will be greatly increased, the plants will become prosperous and the stem vines will be weak, which will lead to difficulty in sitting. In the management of loofah in summer, it is necessary to strengthen the control of temperature so that it is conducive to the growth of loofah. Through ventilation, sunshade, water spray and other measures, so that the daytime temperature is controlled at 30 ~ 35 °C, night temperature dropped to 20 °C. Falling vines are not timely or the vine spread is too small, but also easily lead to nutrient growth of loofah and it is difficult to sit melon. For loofah in the middle and late spring floods, should be accompanied by picking and picking the heart promptly falling vines; to the summer of the loofah, in the early growth period should be timely vines, and increase the extent of ranch, each fell vine not less than 80 cm, maintain the strain 120 cm high. To tune over the summer loofah, can spray ethephon and other plant growth regulators to promote female flower differentiation, increase flowering rate. For prosperous plants, spray 25% Methionine 750 times liquid control.
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