How to fill the light in winter and grow vegetables in greenhouse is the best?

If you grow vegetables in winter, it is foggy, the temperature is low, the light is less, and the vegetables grow poorly and slowly, which is easy to get sick. Moreover, when there is little light, the taste of some vegetables will also be affected, resulting in a decrease in sweetness. Persistent cloudy weather will directly affect the yield and quality of vegetables. This is because fog can absorb the blue color that promotes chlorophyll synthesis, and the light quality decreases, while vegetables do not absorb it, which leads to slower growth and absorbs the light that is beneficial to vegetable growth. At the same time, a lot of dust has accumulated on the film in the haze weather for several days, and the light transmittance has decreased.

The management of this period is very important for planting tomatoes, vegetables, melons and leafy vegetables. On the one hand, it is necessary to increase the temperature of the warehouse, on the other hand, it is necessary to supplement the light to ensure the growth of vegetables. In addition to warming measures, if you want to reduce the impact of weather on vegetables, it is also an effective way to use supplementary light. So, how to use fill light more effectively?

Different kinds of fill lights have different effects. For example, fluorescent lamps or tungsten wires commonly used by many farmers. Now we use spectral fill light. Blue light and red light are mainly used to simulate sunlight and let plants absorb it. The wavelength of the light emitted by the fill lamp and the absorption of crops are also sufficient. The advantage of fluorescent lamps is that they are cheaper to use. Farmers can choose according to the needs of crop growth. For plants, growth needs sufficient light. In this way, they can grow better, because leaves need light to make nutrition better, so insufficient light will also make the growth momentum of vegetables worse. But in winter, in addition to the temperature drop, lighting is also greatly reduced. There are more cloudy days, sometimes foggy weather and poor light. Especially for some crops planted in plastic greenhouses, the illumination stage is very poor.

In addition to illumination time, illumination intensity is also important. Insufficient light can lead to serious diseases and must be improved manually. For example, it is necessary to supplement and meet the growth of crops. So, how to supplement this light? Tell a simple story here today. The lighting of the plastic shed is inherently weak, so we should pay more attention to whether there is anything blocking the light source. Strive to improve. Climbing crops are generally supported by bamboo poles, and the shading area can be relatively reduced by using ropes. The plastic greenhouse base originally supported by bamboo poles can be replaced by iron wires, which can not only reduce shading, but also make the plastic greenhouse a sign for better lighting.