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作物或植物是靠光合作用制造养料来供应整个植株的生长、发育、开花、结果的。而光合作用时,空气中的二氧化碳则是不可缺少的物质条件。一般在空气里二氧化碳只占0.O3％,这对于大地里的作物来说,问题不大,因为大气的流动,二氧化碳会源源不断地前来补充,然而作(植)物在空气不太流通的暖棚里,情况又是怎样的呢? 上海科影厂八七年摄制的科教片《二氧化碳施肥》正是介绍这方面的知识,并着重表现近两年来江苏农学院的科研人员如何运用二氧化碳施肥办法,对黄瓜、番茄、小麦、水稻等作物进行科学实验,取得了显著的成果。如黄瓜增产80％以上,且好瓜率高,上市早。有的作物产量还能成倍增长。影片着眼于学得会,用
Crops or plants rely on photosynthesis to create nourishment to supply the entire plant’s growth, development, flowering and fruiting. Photosynthesis, the air of carbon dioxide is an indispensable material conditions. Carbon dioxide is generally only 0.O3% in the air, which is not a problem for the crops in the earth, because the flow of the atmosphere, carbon dioxide will continue to come to supplement, but for (plant) in the air is not very circulate Of the greenhouse, the situation is like it? Shanghai Science Factory in 1987 film science film “carbon dioxide fertilization” is to introduce this knowledge, and focused on the performance of the past two years, Jiangsu Agricultural College researchers how to use carbon dioxide fertilization Methods, cucumber, tomato, wheat, rice and other crops for scientific experiments, and achieved remarkable results. Such as cucumber yield more than 80%, and good melon rate, market early. Some crops can double their output. Film focus on learning will, use