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日光温室蔬菜生产是在光照条件差、温度低的冬春季进行,因此,光照弱、地气温低成为日光温室蔬菜生产的限制因素。在育苗床和栽培畦北侧张挂农用反光幕,既可增加光照强度,又能提高地、气温,对蔬菜育苗和栽培有良好的作用。 一、农用反光幕的增光效应
Solar greenhouse vegetable production is in poor light conditions, the temperature is low in winter and spring, therefore, the light is weak, the low temperature to become a solar greenhouse vegetable production constraints. In the nursery bed and planting 张 flanked by agricultural anti-reflective screen, can increase the light intensity, but also improve the ground temperature, vegetable nursery and cultivation have a good effect. First, the agricultural light curtain effect of light