Recently, the snowfall in many places in China has caused a large number of low-temperature and low-temperature illumination, which has had a very negative impact on the cultivation of fruit trees in the facility. Remind farmers to take relevant countermeasures as soon as possible and to conduct scientific management on the ground and underground of fruit trees in greenhouses.
Insulation warming
At low temperature, it is the most common method to increase the temperature of the greenhouse insulation by thickening the straw curtain on the greenhouse and carrying out multi-layer covering. After entering the weather in September, the fruit growers can also use the cold ditch to protect the greenhouse against cold. Under normal circumstances, two or three consecutive days of rainy weather, when the greenhouse temperature is lower than eighty-nine degrees, the fruit grower must consider to increase the temperature inside the shed to provide temperature for the fruit trees within the shed to adapt to growth. The mobile warmers dedicated to the existing sheds are very convenient, and traditional smoke methods are not currently advocated.
Fill light
In addition to warming, supplementing the light is an urgent task for the management of fruit trees in the sheds in the open air, in addition to promptly unveiling the straw curtains, keeping the sheds clean, and securing light for crop growth. At present, modern industrialized greenhouses have the conditions for lightening crops. The most common method is to install some light sources and use the fill lights to allow crops to have sufficient light for photosynthesis and ensure their normal growth. Including bio-sodium lamps, LED lights and so on.
Turn to the ground
In addition to warming and supplementing the light, maintaining the ground temperature is also a very important point in the management of fruit trees in the greenhouse. Continuous low temperatures will result in lower temperature in the greenhouse, and farmers can increase the temperature of the ground by turning the floor.
Strictly control the moisture
In addition, fruit growers need to pay special attention to the issue of irrigation. Under low-temperature and low-light conditions, if the soil in the greenhouse is not particularly dry, avoid irrigation. At this time, irrigation will cause the soil temperature to decrease, which is very unfavorable for crop growth.
Shed covered shed early
Finally, for the time of covering sheds, if the type of greenhouse is arched shed, farmers should advance the time for covering the shed in the afternoon. Because the arch shed is different from the solar greenhouse, it does not have insulation walls, so the insulation performance is worse.
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