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用 40 0W的高压钠灯 (HPSL)和日光色镝灯 (SDL)两种光源对温室栽培生菜 (Lac tucasativaL .)的生长进行了补光效果测试 结果表明 ,在相同的光照强度下 ,对于光合作用强度的促进效果 ,钠灯比镝灯好 ,但差异不很大 钠灯和镝灯在空间的光照强度分布不一样 ,在相同功率下 ,钠灯所产生的光照强度总体上比镝灯强 根据作物生长对光照的要求和不同光源的光照强度分布特点 ,分别设计了钠灯和镝灯在温室中的合理配置方式 ,钠灯为 0 .1 2 6盏 /m2 ,镝灯为 0 .1 71盏 /m2
The effects of light supplementation on the growth of cultivated lettuce (Lac tucasativa L.) were investigated by using 40W HPSL and SDL light sources. The results showed that under the same light intensity, photosynthesis Intensity of the promotion effect, sodium lamp is better than dysprosium lamp, but the difference is not very big sodium lamp and dysprosium lamp in the light intensity distribution is not the same, at the same power, the light intensity of the sodium lamp is generally stronger than the dysprosium lamp according to crop growth Lighting requirements and light intensity distribution of different light sources were designed sodium lamp and dysprosium lamp in the greenhouse in a reasonable manner, sodium lamp is 0.1226 / m2, dysprosium lamp is 0.111 / m2