Elevated CO2 and Crop ChemistryPosted: May 24, 2018
ESSENTIAL reading and research for the ‘failing’ Guardian and New York Times respectively, who both launched new attack pieces on essential trace gas CO2, claiming this time that “Climate change [CO2] will make rice less nutritious”… 🤔
Before it was expropriated by the global warming/climate change movement, the term “Greenhouse Effect” referred to the effect of elevated carbon dioxide in greenhouses on crop chemistry. We know from greenhouse studies going back to the late 19th century that crop chemistry reflects the balance between soil chemistry, air chemistry, and light intensity. The important features of air chemistry are the availability of carbon dioxide for photosynthesis and of oxygen for plant respiration. The important features of soil chemistry are the availability of water, nitrates, phosphates, and minerals.
Greenhouse operations irrigation, air circulation to maintain air quality, heating for temperature control, the introduction of carbon dioxide to maintain elevated carbon dioxide levels of 1000 to 2000 parts per million for photosynthesis enrichment, and the availability of sufficient light for photosynthesis to occur. Photosynthesis enrichment improves crop yield and corresponding changes to soil chemistry must also be maintained to preserve the…
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