At present, as the weather is getting hotter, the night temperature in the greenhouse is also high, so that the length of the tomato in the greenhouse is serious. In order to prevent the propolis from sprouting trees, it is necessary to take some comprehensive measures to control plant growth.
1, temperature control tree. The optimum temperature for the growth of eggplant is 25-28°C during the day and 15-18°C during the night. Overgrown plants can control relatively low temperatures. Ventilate in time during fine weather and control the temperature of the shelter no higher than 28°C. Decreasing the night temperature is the key to restraining growth, especially the temperature at the latter part of the night. The temperature in the first half of the night can be controlled at 18-20 °C, which is conducive to the outward transport of photosynthate from the leaves; the temperature in the latter part of the night is preferably 12-15 °C.
2, moisture control tree. Although excessive water control is not good, proper water control is one of the best ways to control trees. Prosperous sheds should be erected. Avoid bountiful flooding and watering should be done alternately. Only plants can be planted. To pour water, it is generally sufficient to pour half a ditch at a time. Diving after watering.
3, fruit control trees. Plants that grow too vigorously want to stay in the door and keep as much fruit as possible to regulate excessive vegetative growth. The door can not be removed early eggplant, eggs should be eggplant size, three eggplant flowers after removal. If the growth of the plant is still very prosperous at this time, the eggplant can not be removed for a short time, and the door eggplant can be twisted clockwise until the eggplant is rapidly expanded.
4, drug control tree. There are many plant growth regulators that control plant growth, such as chlormequat, auxiliaries, paclobutrazol, etc. However, due to the difficulty in controlling the concentration of chlormequat and paclobutrazol, it is recommended that vegetable growers use booster or higher concentrations of love. Make adjustments. The use of the general auxin is 750 times the concentration, love more than 2000 times.
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