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Heavy lake-effect snow dumps more than 5 feet over parts of Great Lakes region; Study: Fish farms consume far more wild fish than previously thought; Maryland's federal workers prepare to defend their jobs; Federal investments help bolster MA workforce training programs.

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A plan described as the basis for Trump's mass deportations served a very different purpose. Federal workers prepare to defend their jobs if they lose civil service protections, and Ohio enacts bathroom restrictions on transgender people.

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Residents in Colorado's rural communities face challenges to recycling, climate change and Oregon's megadrought are worrying firefighters, and a farm advocacy group says corporate greed is behind high food prices in Montana.

A high-tech approach to studying Iowa's future soil health

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Monday, July 22, 2024   

Farmers in Iowa are studying interactions between crops, water usage, carbon and nitrogen storage, and how those factors combine to affect longterm soil biodiversity. It's part of a seven-state project in the Midwest.

Researchers are looking at the effects of crop combinations on soil and moisture across the Corn Belt.

Iowa State University Agronomy Professor Sotirious Archontoulis is running one research site in the five-year, $16 million project.

He's monitoring how crop management, carbon and nitrogen content affect soil moisture - and will try to predict the impact on the viability of future crops.

"We have the same setup in many different environments to capture different organic matter, soil hydrology conditions," said Archontoulis, "so we get a better understanding of the complexities in the agronomic system."

Archontoulis said scientists can also study greenhouse gas emissions from the soil.

He said these ultimately affect its health and can have an impact on large ag operation waste runoff, which is known to pollute nearby ground and surface water. The research is gearing up now.

Based on the computer model's findings, Archontoulis said researchers can make recommendations to farmers based on - for example - how much nitrogen the soil is losing in certain places, and how they can adjust planting schedules as a result.

"We can say, 'This cropping system with this management practice typically loses that amount of nitrogen,'" said Archontoulis. "'However, the other combination of cropping system could reduce nitrogen loss and improve productivity by X%, so this is a better strategy to move forward.'"

Archontoulis said the research begins across the Midwest this summer.




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