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对日光灯在苗床上同一高度平行悬挂,研究其间距不同,灯下与灯间的光线分布。发现灯间距越小,同一测点的光线越强。同时发现,灯下的光强随距离加大而减弱,灯间下光强分布是由弱到强,再由强到弱,其中最大位置与灯间距有关。由此,根据灯间距不同,应适当调整日光灯悬挂的高度,以确保秧苗生长区的光线分布最大且尽可能均匀。
Fluorescent lamps in the same height parallel to the hanging on the bed to study the different spacing, lamp and lamp light distribution. The smaller the lamp spacing, the stronger the light at the same point. At the same time, it was found that the light intensity under the lamp weakened with increasing distance, the light intensity distribution under the lamp room was from weak to strong, and then from strong to weak, the maximum position of which was related to lamp spacing. Therefore, depending on the lamp spacing, the height of the fluorescent light bulbs should be properly adjusted to ensure that the light distribution in the seedling growing area is maximized and as uniform as possible.