How to deal with even cloudy vegetables

Before the low temperature day arrives in the shade, anti-disease sprays or foliar fertilizers are sprayed in advance to enhance the ability of the vegetables to resist low temperatures. In continuous cloudy snow weather, the temperature inside the shed is low and measures should be taken to increase the temperature inside the shed. Conditions can be used to warm the fire, heating furnace heating, and fully increase the temperature inside the greenhouse, to ensure the safety of vegetable plants through the cold season.

In the case of even cloudy days, the grass cover must be covered early and covered in full, the scattered light should be fully used to increase the light in the shed, and the light curtain should be added to the back wall of the shed; the shed film should be cleaned in time to ensure that the shed film is clean and clean, and the light transmittance is increased. It is also possible to install fluorescent lamps, biogas lamps, etc. in the shed to supplement light and promote photosynthesis. In order to reduce the incidence and development of vegetable diseases in the facility, indoor air humidity should be minimized. In winter, watering should be strictly controlled. When the crops show drought, they can be poured into small water under the membrane on sunny days. When using pesticides to control vegetable diseases, dust or aerosols should be used as far as possible.

Timely removal of the old leaves of the plant, increase the amount of direct sunlight on the ground, increase the temperature of the ground, promote the growth of new roots, and also reduce the amount of transpiration of the leaves to prevent excessive water loss and wilting of the plants. On a continuous cloudy day, do not fully uncover the haystacks after the sudden turn of fine weather, prevent the seedlings that have experienced severe weather from seeing a sudden glare, and the temperature in the shed will suddenly increase, causing the seedlings to increase water transpiration and wilting. The method of management, that is, to expose the gaps, cover the gaps, and repeatedly reveal, and wait for the plants to no longer wilt and restore growth, then all unveiled.

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