Author Topic: carbon dioxide.. global warming  (Read 1282 times)

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Offline zeker

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carbon dioxide.. global warming
« on: November 09, 2015, 06:04:14 PM »
If carbon dioxide is so bad for the planet,
why do greenhouse growers buy CO2 generators to double plant growth?

Carbon Dioxide In Greenhouses<blockquote><blockquote>The benefits of carbon dioxide supplementation on plant
growth                and production within the greenhouse environment
have been well                understood for many years.

Carbon dioxide (CO2) is an                essential component of
photosynthesis (also called carbon assimilation).
Photosynthesis is a chemical process that uses light energy to
convert                CO2 and water into sugars in green plants. These
sugars                are then used for growth within the plant, through
respiration.                The difference between the rate of photosynthesis
and the rate of                respiration is the basis for dry-matter
accumulation (growth) in                the plant. In greenhouse production
the aim of all growers is to                increase dry-matter content and
economically optimize crop yield.                CO2 increases productivity
through improved plant growth                and vigour. Some ways in
which productivity is increased by CO2                include earlier lowering,
higher fruit yields, reduced bud                abortion in roses, improved
stem strength and flower size. Growers                should regard CO2 as a

             For the majority of greenhouse crops, net photosynthesis
increases as CO2 levels increase from 3401,000                ppm (parts
per million). Most crops show that for any given level                of
photosynthetically active radiation (PAR), increasing the CO2
level to 1,000 ppm will increase the photosynthesis by about
50%                over ambient CO2 levels. For some crops the economics
may not warrant supplementing to 1,000 ppm CO2 at low                light
levels. For others such as tulips, and Easter lilies, no response
has been observed.
of all the things I,ve lost.. I miss my mind, the most