科学家研究表明 ,色光与作物的产量和品质密切相关。例如 ,在红色地膜中 ,胡萝卜长得特别快 ;甜菜、甜瓜特别甜 ,维生素Ｃ含量高 ,甜瓜还可提前两个月上市 ;水稻、小麦生长旺盛。黄色地膜中 ,黄瓜可增产５０ %以上 ;芹菜和莴苣植株高大粗壮 ,食用期延长。蓝色地膜中 ,小麦的蛋 Scientists have shown that shade and crop yield and quality are closely related. For example, in the red film, carrots grow particularly fast; sugar beet, melon is particularly sweet, high vitamin C content, melon can be listed two months in advance; rice, wheat is vigorous growth. Yellow film, cucumber yield increase of more than 50%; celery and lettuce tall plants, extended period of consumption. Blue mulch, wheat’s egg