论文部分内容阅读
温室气肥增施装置（四型）北京长缨机电设备厂１．气肥增施原理二氧化碳（化学式为ＣＯ２）是无色无味无毒的气体，在空气中的含量为０．０３９％～０．０４％（即３００－４００ｐｐｍ，１ｐｐｍ为百万分之一）。植物在光合作用中，叶片内的叶绿素吸收光能，将二氧化碳和...
Greenhouse gas fertilizer by the device (four) Beijing Ying Ying Electrical Equipment Factory 1. Principle of gas fertilization Carbon dioxide (chemical formula CO2) is a colorless, odorless and non-toxic gas with a content of 0.039% to 0.04% (ie 300-400ppm and 1ppm parts per million) in the air. Plant photosynthesis, the chlorophyll within the leaf absorb light energy, carbon dioxide and ...