There are a lot of questions about led plant lamp coming for consultation, including how to use the plant lamp, how to make up the light distance, the light time and the power illumination, but the most frequently asked questions are the spectral ratio of the plant lamp.
Led plant lamp is used for plant lighting, all schemes must be customized around plants, and what kind of shape plants need to grow into is cultivated according to people's needs, so when looking at the proportion of red and blue lamp beads of LED plant lamp, we should first consider the growth needs of plants and human needs.
However, from the perspective of light, whether it is the demand of plant growth or the demand of human beings for plants, the control methods can be summarized as the control of light quality, the control of light intensity, and the control of light time. Only when the light intensity reaches between the light compensation point and the light running point, can the plant grow; only when the light duration reaches a certain time, can the plant grow healthily. Next, focus on light quality.
When LED plant lights are used to supplement light for plants, most of the light source of photosynthesis is led plant lights. Different light quality of LED plant lights has different physiological significance for plants. The chips of plant lamp beads are mainly red lamp beads, blue lamp beads and full spectrum lamp beads. The main function of red light on plants is to regulate the light cycle of plants and affect the flowering and bearing of plants; the main function of blue light is to affect the movement of leaves and plastids, promote the growth of stems and leaves, and to some extent inhibit the flowering and bearing of plants; the main wave band of full spectrum lamp beads is also red and blue spectrum, and the principle is the same.
From the function of red and blue light, we can see that when choosing the proportion of red and blue lamp beads of LED plant light, we should first determine what kind of plant to plant and what kind of growth form to achieve. For example, for lettuce planting, lettuce is a plant for human use. The purpose of lettuce is, of course, to choose a light supplement scheme to stimulate the quality and yield of stem and leaf. The proportion of blue light beads in LED plant lamp can be increased appropriately. For example, for tomato planting, our purpose is to eat large, round, healthy and green high-quality tomatoes, that is, to stimulate their flowering and bearing during the planting process For the purpose, the proportion of red lamp beads of LED plant lamp species can be increased properly. LED perpetual lamp plant growth lamp red and blue beads ratio is roughly between red: blue =6--9:1, according to different plant needs and uses, choose different lamp bead ratio. Sometimes a small amount of green lamp beads will be mixed in the LED plant lamp. Its main function is to adjust the comfort of light and protect the naked eye.