Insect net in the wind, rain and snow climate in the greenhouse insulation will play what kind of effect?Let's have a look.Temperature precipitation, continue low temperature, weak light, may be on the greenhouse vegetables and fruits attack more severe impact.Production countermeasures are proposed as follows:
1, do a good job in greenhouse insulation: in winter, rainy and snowy climate, the lack of heat and light in the greenhouse, constitute a great difficulty in greenhouse insulation in winter.
l choose multi-layer cover insulation skills, can travel greenhouse internal temperature at night, useful to beat the winter low temperature to prevent.Selection of "three shed four film" that is, the greenhouse + shed + shed + plastic film multi-layer covering insulation is economically useful.
l cover data.The inner shed is covered with heat preservation materials such as straw curtain, insect proof net, etc. The outer apron can also be covered.Control the ventilation moment.Morning evening ventilation, early afternoon cover film.
l in case of strong cold air, can be heating or other equipment heating.
2, strengthen the treatment of greenhouses:
l vegetable greenhouse production process must strengthen light treatment, in the premise of conducive to heat preservation, should be uncovered as soon as possible, more light, extend the light moment, try to add light.
l increase carbon dioxide.The application of carbon dioxide fertilizer skills, adding carbon dioxide content, is also conducive to enhance the cold talent of the plant.Should pay attention to vegetable blight, grey mildew attack and extension.
l cut off dead branches.Cut the stem and leaf that suffer from frost in time austere, avoid to arrange mildew pathological change, cause disease.
l successively low temperature cloudy rain and snow climate back clear climate should be careful greenhouse back curtain cover in time, to avoid the plant withering away.If the leaves are normal, gradually add the number of straw curtain, until all open;If discover to have wilting phenomenon to appear, answer to cover a few straw shade again in time, let crop habit.
l long after clearing, should repeat the wind, so that the room, the temperature difference between the surface and the inside and a few days ago, together, let the greenhouse slowly warming up, to avoid a sudden rise in temperature, resulting in the death of the plant.
l pay attention to avoid ventilation too fast, and the door to put a shelter, prevent cold wind blowing, resulting in the plant Withers away.