Rain, snow, autumn, greenhouse, greenhouse, vegetable management
1. Strengthen moisture control and disease prevention
Continuous low temperature rain and snow weather, the air humidity in the shed is large, easy to induce disease, should be ventilated and drained at noon for a short time to control the occurrence of diseases; pay special attention to the indoor temperature range of 15 ~ 25 °C, to ensure that the relative humidity of the air is controlled below 90%, so as to avoid The pathogen is rapidly infested. In the case of onset, smoke and dust can be used to prevent and apply evenly, so as to avoid excessive humidity in the shed.
2. Remedy in case of freezing damage
Cut off the dead branches, artificially spray water, manage with low temperature and less light, gradually increase the light and increase the temperature inside the shed. Plants with weaker growth or more results should be harvested in time, and appropriate amount of flowers and fruits should be reduced to reduce nutrient consumption. At the same time, foliar spray fertilizer, supplement nutrition. Generally, 0.3% potassium dihydrogen phosphate plus 0.3% calcium nitrate and 1% glucose solution can be sprayed on the foliage.
3. Slowly see the light and avoid flashing
When it is suddenly cloudy after the yin, you can use one or three grasshoppers to open one method, so that the vegetables gradually see the light, avoiding the seedlings to smash the seedlings (the environment changes cause the leaves to wither). Repeated for several times or several days, the number of exposures is from small to large, until the vegetables grow normally.
The shacks using the roller blind machine should not pull the quilts all at once, first roll them up a little, and then gradually increase the amount. After entering the normal management, the quilt should be exposed as early as possible and the quilt should be covered as soon as possible. The time for uncovering the quilt should not be significantly reduced after the quilt is uncovered. The time for covering the quilt should be based on the season and indoor temperature. It is advisable to cover the grass when the temperature in the shed is lowered to 17 °C.
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