Features on agronomy.org
Changes in temperature, CO2, and precipitation under the scenarios of climate change for the next 30 yr present a challenge to crop production. This comprehensive review, published in Agronomy Journal, focuses on the impact of temperature, CO2, and ozone on agronomic crops and the implications for crop production.
Corn stover, left in fields after corn grain harvest, has been identified as a potential feedstock to help supply biofuel. However, harvesting excessive corn stover could reduce crops yields directly or indirectly by diminishing total total organic carbon levels until soil’s production capacity is threatened. This large-scale study is measuring the effects of harvesting corn stover across the eastern half of the United States.
The implementation of stricter drinking-water quality regulations for disinfection by-products has highlighted the need to understand sources of organic matter to drinking-water intakes. 
Soil is a major component in the ecosystem carbon balance. The availability of small, solid-state sensors has allowed for the continuous measurement of soil CO2 in field settings.
An expansion of soybean production into areas where soybean has seldom, if ever, been grown presents a steep learning curve
The American Society of Agronomy held its Annual Meeting in Long Beach CA this year and hosted more than 3,500 scientists, professionals, educators, and students 
The American Society of Agronomy will host 3,000 scientists, professionals, educators, and students to the 2010 International Annual Meetings, Oct. 31-Nov. 3 in Long Beach, CA.
Double-cropping systems have been suggested as a way to increase annual dry matter production per hectare, while simultaneously delivering environmental benefits. Past research seems to indicate that there is a genotypic effect for the suitability of a crop for use within double-cropping systems; however, despite sorghum’s diverse genetic background, there has not been a great deal of work done to explore this response for this crop.
From the fields of corn and soybeans which cover the Midwest, the vibrant yellows of sunflowers in Canada, the expansive rice paddies of Asia, the vast acres of cotton drying under the hot Southwestern sun, to the lush green mountains of coffee growing in Central America, these crops are the work of agronomists. 
Crops responded positively to future levels of atmospheric carbon dioxide (CO2), but soil tillage practices had little effect on this response. The first long-term study comparing tillage practices under high CO2 levels showed that elevated CO2 caused soybean and sorghum plants to increase photosynthesis while reducing transpiration-the amount of water the plants release. This resulted in increased water use efficiency, whether the crops were grown with no-till or conventional tillage, according to USDA Agricultural Research Service.
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5585 Guilford Road | Madison, WI 53711-5801 | 608-273-8080 | Fax 608-273-2021
Certification: 608-273-8085 | Fax 608-273-2081