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SCOTUS skeptical that state abortion bans conflict with federal health care law; Iowa advocates for immigrants push back on Texas-style deportation bill; new hearings, same arguments on both sides for ND pipeline project; clean-air activists to hold "die-in" Friday at LA City Hall.

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"Squad" member Summer Lee wins her primary with a pro-peace platform, Biden signs huge foreign aid bills including support for Ukraine and Israel, and the Arizona House repeals an abortion ban as California moves to welcome Arizona doctors.

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The urban-rural death divide is widening for working-age Americans, many home internet connections established for rural students during COVID have been broken, and a new federal rule aims to put the "public" back in public lands.

Cover Crops: The Best Kept Farm Conservation Secret

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Monday, February 19, 2007   

Every year, tons of precious Iowa topsoil wash away into rivers and lakes, damaging water quality and leaving less fertile soil behind. Soil scientist Jeremy Singer with the National Soil Tilth Laboratory in Ames says there's a way to stop this waste. The best solution may be "cover crops," grains such as winter rye and wheat that can hold the soil in place through the winter.

However, Singer says a new survey indicates only one in ten Iowa farmers has ever planted these cover crops, and even fewer in recent years.

"Only six to 11 percent of respondents had used a cover crop in the last five years in their farming systems."

Singer adds cover crops should become even more important in Midwestern farming as producers plant more acreage to corn.

"The soil is susceptible to erosion even in no tillage, and that may be an opportunity to use a cover crop."

The National Soil Tilth Laboratory is experimenting a variety of cover crops to determine how well they protect soil from erosion with the least disruption to planting and harvesting. The survey was conducted by the Leopold Center for Sustainable Agriculture and included 3,500 farmers from Iowa and other Midwestern states. It is available online at:

www.leopold.iastate.edu/pubs/nwl/2006/2006-4-leoletter/cover.htm.



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