No matter in greenhouse or indoor artificial light factory, insects will grow. The key is how to control. The greenhouse is a semi manual control environment. If the door is not well managed, there will be insects coming in. Usually, there is a large space and there will be insects coming in. The strict conditions of plant factory management and greenhouse management are not the same level. When we enter the plant factory, human hair should be protected. In addition, the air and water of the plant factory are purified or filtered. If we strictly follow the management mode of the plant factory, the probability of growing insects is very low, so the plant factory is not allowed to use insecticides. In greenhouse, we can only reduce the proportion of pollution as much as possible. Hydroponics through nutrient solution is one of the methods.
On the basis of different light quality, how to ensure its luminous flux density? In addition, how to ensure that it is in the same light intensity. For example, the red and blue light sources are combined into the same power, and the blue light chip and the red light chip voltage chip are not the same. Different numbers seem to represent different light intensity, that is, PPF is not the same, because the light flux is related to plant chlorophyll a and B.
Even if it is the same PPF, each watt is similar to the concept of light efficiency, and the impact of different spectra on plant growth is certainly different. Many of the lamps sold on the market now measure the performance by PPF per watt, which I think is not comprehensive, because it does not include spectrum. Effective PPF is very important for plant growth spectrum.
We all know that it is very difficult to achieve complete uniformity of the light spot of any lamp when designing a lamp. It can only be achieved through optical design at the stage of lamp production, making the light more uniform as much as possible. For example, some linear lamps with medium power are not wrong. If you want to supplement the light in the shed, you need more accurate optical design.