carbon dioxide as fertilizer …

Vegetables adore huge increases in CO2, by more than double in one case.  The Garden Pea data:

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Aranjuelo et al. (2013)

The total dry matter of well-watered plants grown for four weeks, one to each 2.5-L plastic pot filled with a 3/2 mixture of vermiculite/perlite, in controlled-environment chambers where they were fertilized with N-free nutrient solution for N2-fixing plants
 

67%

 

Aranjuelo et al. (2013)

The total dry matter of well-watered plants grown for four weeks, one to each 2.5-L plastic pot filled with a 3/2 mixture of vermiculite/perlite, in controlled-environment chambers where they were fertilized with 10 mM KNO3 for nitrate-fed plants
 

104%

 

Aranjuelo et al. (2014)

Whole plant biomass of well-watered and fertilized (but supplied with no nitrogen) plants growing one to each 2.5-L pot filled with a 3:2 mix of vermiculite-perlite within controlled-environment chambers maintained at 25/18°C day/night temperatures
 

50%

 

Aranjuelo et al. (2014)

Root nodule biomass of well-watered and fertilized (but supplied with no nitrogen) plants growing one to each 2.5-L pot filled with a 3:2 mix of vermiculite-perlite within controlled-environment chambers maintained at 25/18°C day/night temperatures
 

47%

 

Butterly et al. (2015)

Above-ground biomass of plants grown from seed to maturity in well-watered and fertilized virgin soil contained within PVC columns located inside of outdoor SoilFACE bunkers at Horsham, Victoria, Australia
77%

 

 

Coll and Hughes (2008)

Dry weight of the central leaflets of the youngest, fully-expanded leaves of well watered and fertilized plants grown from seed in 15-cm pots filled with common potting soil and placed within controlled-environment cabinets
81%

 

With 600 more ppm of CO2, more than double the dry matter. Stunning improvements all round. Burn more coal and gas.

About Tom Harley

Amateur ecologist and horticulturalist and CEO of Kimberley Environmental Horticulture Inc. (Tom Harley)
This entry was posted in Environment, science, weather and tagged , , , , , , , . Bookmark the permalink.

One Response to carbon dioxide as fertilizer …

  1. Pingback: carbon dioxide as fertilizer … | pindanpost | Cranky Old Crow

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