Monthly Archives: June 2013

CO2 effects on crop growth

Posted by : Gordon Rogers | Category : Mitigation | Comments : 0 Comments

CO2 meter

The yield or growth rate of most vegetable crops is likely to increase as atmospheric CO2 levels rise. This effect is well known in the glasshouse industry where CO2 enrichment has been practiced for many years for crops such as tomatoes, cucumbers, capsicums and leafy vegetables. Global CO2 levels have just recently reached 400ppm, up from 320ppm [...]

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Effects of climate change on water use

Posted by : Gordon Rogers | Category : Mitigation | Comments : 0 Comments

lettuce wet

Water use by vegetable crops is mainly determined by loss into the atmosphere, rather than availability in the soil. The atmospheric demand for water is estimated by the potential evapotranspiration (PET). Four factors influence PET: Temperature Wind speed Sunshine Relative humidity Increases in temperature can be offset by decreases in sunshine, due to cloudy conditions, [...]

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The many tools available online

Posted by : Gordon Rogers | Category : Tools | Comments : 0 Comments

farm tools

There is a wide range of tools available for helping growers and others involved in the vegetable industry to manage the impacts of climate change and variability. Although some have been developed for other industries, such as grains and broad acre agriculture, they still contain elements useful for vegetable growers. The tools can be grouped [...]

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