After the grafting of vegetables, pay attention to the prevention of sprouting
After grafting, if vegetables are affected by the adverse environment, they often show the phenomenon of leaf wilting. The vegetable farmers are called flash sprouts.
First of all, after the grafting, it should not be too hasty. Generally 4 to 5 days after grafting, the general farmer thinks that the interface is basically healed, and usually the air will be released. However, after grafting, the seedlings were in a high-humidity environment. The transpiration of stems and leaves was weak, and the water absorption in the roots was also relatively small. If the wind was suddenly enlarged and the light was strong, the transpiration of the leaves suddenly increased, and the water absorbed by the roots could not meet the transpiration of the leaves for a time. Needs, the leaves will be wilting. The wilting condition is serious, and the newly joined part of the interface will be separated again. Therefore, when the air is released, generally 7 to 8 days after grafting, the grafting interface should be completely healed. When ventilating, it is necessary to pay attention to gradual and gradual ventilation. At the beginning, the ventilation volume should be small, and then gradually increase again. Do not suddenly exhale.
Second, pay attention to the adjustment of temperature. Strengthen the temperature control, the daytime temperature is maintained at 24 °C ~ 26 °C, night reduced to 14 °C ~ 16 °C, day and night temperature difference maintained at about 10 °C. Grafted seedlings first receive scattered light.
In addition, in the case of continuous cloudy days, see the plant leaves wilting, to slow down the temperature of the greenhouse, wait for the leaves of the plant to stretch, then roll the grass curtain, let a small amount of light enter, so repeated many times until the plant leaves Stretch normal so far.
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