How to achieve light management in agricultural greenhouses?

Agricultural greenhouses are controlled agricultural systems built to provide an environment suitable for plant growth. Light is one of the important factors affecting plant growth and yield. In a greenhouse, the management of light is essential for plant growth. This paper will discuss how to achieve light management in agricultural greenhouses.

Light management in agricultural greenhouses involves the control of light intensity, light duration and spectrum. We'll look at each one below.

First, the management of light intensity is very important. Different plants have different requirements for light intensity. In general, the higher the light intensity, the faster the plant growth, but it can also be hurt by too much light. Therefore, the light intensity in agricultural greenhouses needs to be adjusted according to the requirements of specific plants. In order to achieve the management of light intensity, the light intensity can be changed by adjusting the shading screen in the greenhouse or using adjustable transparent shading cloth. In addition, lighting devices can be used to provide additional light, such as LED lamps.

Secondly, the management of light time is also very important. Different plants have different requirements for light duration. In general, most plants need more than 12 hours of light to grow properly. Therefore, in agricultural greenhouses, the light time needs to be controlled according to the requirements of the plant. This can be achieved by adjusting the working hours of the lighting equipment in the greenhouse. Generally speaking, the light schedule can be developed according to the growth stage and needs of the plant to ensure that the plant can get enough light at different growth stages.

Spectrum management is also one of the important aspects of light management in agricultural greenhouses. Spectrum refers to the distribution of wavelength and intensity of light, and different wavelengths of light have different effects on plant growth and development. In agricultural greenhouses, the spectrum can be changed by using specific wavelengths of light to provide a light environment suitable for plant growth. For example, the use of red light can promote plant growth, while the use of blue light can promote plant flowering and fruit formation. Therefore, according to the needs of the plant, the appropriate spectrum can be selected to provide light.

These are the general principles of light management in agricultural greenhouses, and how to implement these management measures will be further discussed below.

First of all, in order to achieve the management of light intensity, the appropriate shading materials can be selected according to the lighting requirements of different plants in the greenhouse. In general, the choice of shading materials should have a high shading rate, and can be adjusted as needed. For example, some blackout nets can adjust the blackout rate according to needs, so as to achieve the control of light intensity. In addition, a movable shade cloth can be set up in the greenhouse to adjust the light intensity as needed. In addition, additional light can be provided through the setting of the lamps, adjusting the number and brightness of the lamps according to the requirements of the plants.

Secondly, in order to achieve the management of lighting time, a timer can be used to control the switching time of the lighting equipment. According to the needs and growth stage of the plant, develop a reasonable light schedule to ensure that the plant can get enough light at different stages. In addition, the light cycle can be set according to needs to mimic the light changes of plants in the natural environment.

In order to achieve the management of the spectrum, a lighting device with a specific wavelength can be used. Choosing a spectrum suitable for plant growth can provide the light environment required for plant growth. For example, LED lamps can be used to provide specific wavelengths of light, such as red, blue, and so on. Adjusting the proportion and intensity of different wavelengths of light can have different effects on plant growth and development.

To sum up, light management in agricultural greenhouses is very important. By controlling factors such as light intensity, light time and spectrum, a suitable light environment can be provided for plants to promote plant growth and development. The goal of light management in agricultural greenhouses can be achieved by selecting appropriate shading materials, using lighting equipment and adjusting lighting schedule.