The Grow Light time of fill light is not fixed, but also depends on the light intensity of vegetables. [Light intensity is a physical term, which refers to the luminous flux of visible light received per unit area.] It needs flexible adjustment. Due to different habitats and climate adaptability, vegetables have different requirements for day length, which can be divided into three categories: vegetables with long sunshine, vegetables with short sunshine, and vegetables with medium sunshine.
It requires high light intensity and length of eggplant. Light saturation point [Chemically, it refers to the limit of the amount of solute in solution or the limit of water vapor in air.] 40000 to 50000 lux (legal symbol lx) is the unit of illuminance.] Light compensation point [Below the light saturation point, when the light intensity decreases, photosynthesis will also decrease. When the organic substances produced by photosynthesis and the substances consumed by respiration reach a balance, the light intensity is called the light compensation point.] It is 2000 lux. Under natural light, sunshine duration [sunshine duration is a very important factor for perennial plants. Sunshine duration refers to that the sunshine duration is more than 14 hours per day before flowering.If the natural sunshine time is less than 14 hours, artificial lighting is required.
Natural sunshine means that the flowering of this plant is not controlled by the sunshine time, and it can blossom without long sunshine, but some varieties will blossom 1-2 weeks earlier.] The sunshine time is shortened, the growth is poor, the growth is weak, and the flower bud differentiation [Flower bud differentiation refers to the process in which the growth point of the plant stem changes from branching out leaves and axillary buds to differentiated inflorescences or flowers.] Delayed, high rate of flower falling, and poor fruit development. According to the above growth habits, light can be enhanced at any time of the day to extend the effective light time. For example, when the sunshine length and intensity are insufficient in cloudy days or winter, photosynthesis can be supplemented. Photosynthesis is divided into aerobic photosynthesis and anaerobic photosynthesis.
2. Pay attention to moisture-proof
Since the humidity in the greenhouse is higher than that outside, when installing the grow light, it is necessary to protect the lamps against moisture to extend the service life of the fill light. The lamp can be sealed, or the fill light with good waterproof and moisture-proof performance can be selected. Of course, not only the lamps and lanterns should be well protected against moisture, but also the wire interfaces, lamp holders and switches used for light compensation in the shed should be well protected against moisture.