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Cover Crop Termination Rules Updated By USDACover Crop Termination Rules Updated By USDA

Rules for insuring a cash crop planted after cover crops have changed since last spring.

Rod Swoboda 1

March 26, 2014

3 Min Read

The rules for insuring a cash crop such as corn or soybeans that is planted after a cover crop have changed since last spring. As growers prepare to terminate cover crops before planting corn and soybeans in spring 2014, these new guidelines should be reviewed.

USDA's Natural Resources Conservation Service, or NRCS, USDA's Risk Management Agency, or RMA, and the USDA Farm Service Agency, or FSA, have worked to create guidelines that allow cover crops to achieve their conservation benefits while minimizing risk of reducing yield to maintain crop insurance eligibility.


Cover crop termination guidelines for management zones
USDA's NRCS has released its updated guidelines for terminating cover crops prior to spring planting of corn and soybeans in 2014. Barb Stewart, state agronomist for NRCS in Iowa, says the most important information to gather from the new guidelines is more of a clarification on how farmers can use cover crops. "The new guidelines clearly state that haying, grazing and cutting covers for silage are all acceptable cover crop uses during a typical year," she says. "But farmers must leave enough cover crop biomass to meet the conservation purpose."

According to USDA's Risk Management Agency, crop insurance guidelines, as long as it's not a prevented planting situation or a designated fallow year, then haying, grazing or cutting the cover are all acceptable. Check with your crop insurance agent if you are unsure.

Thinking About A Cover Crop? Start With Developing A Plan
Taking time to design your cover crop plan will increase the successful establishment of the crop and potentially allow for improved staggering of fall harvest.

For farmers who have planted cover crops to benefit their corn and soybeans, you need to use the best timing and considerations for termination of the cover crop, advises Stewart.

NRCS map shows Iowa cover crop termination zones
For 2014 visit directives.sc.egov.usda.gov to view the NRCS guidelines. Additional information on cover crops and crop insurance rules, provided by RMA, can be found online.

The guidelines for cover crop termination zones shown on the NRCS map use four strategic management zones across the U.S., she notes. About a third of Iowa (the western portion) is in Zone 3, while the remainder is in Zone 4.

For farmers in Zone 3, NRCS continues to recommend terminating cover crops at or before planting a corn or soybean crop. Farmers in Zone 4 should terminate cover crops at or within 5 days after planting, but before crop emergence.

Stewart says that if you follow the updated termination guidelines that will provide the best opportunity for farmers to achieve the soil and water conservation benefits from cover crops, while minimizing risk of reducing yield to the following cash crop due to soil water use.

Don't use tillage to kill cover crops
Some cover crops winterkill; others need to be manually terminated through tilling, mowing or applying herbicide. If not terminated properly, cover crops can act as weeds in crop production, slowing soil drying and warming in spring. Stewart recommends avoiding tillage to terminate cover crops. "Tillage negates most of the soil health benefits cover crops provide, and could lead to additional soil erosion issues," she says.

For information about cover crop termination, visit your local NRCS office or go online to the NRCS website and click on "Agronomy" to view the map showing Iowa's termination zones for cover crop termination and other information.

About the Author(s)

Rod Swoboda 1

Editor, Wallaces Farmer

Rod, who has been a member of the editorial staff of Wallaces Farmer magazine since 1976, was appointed editor of the magazine in April 2003. He is widely recognized around the state, especially for his articles on crop production and soil conservation topics, and has won several writing awards, in addition to honors from farm, commodity and conservation organizations.

"As only the tenth person to hold the position of Wallaces Farmer editor in the past 100 years, I take seriously my responsibility to provide readers with timely articles useful to them in their farming operations," Rod says.

Raised on a farm that is still owned and operated by his family, Rod enjoys writing and interviewing farmers and others involved in agriculture, as well as planning and editing the magazine. You can also find Rod at other Farm Progress Company activities where he has responsibilities associated with the magazine, including hosting the Farm Progress Show, Farm Progress Hay Expo and the Iowa Master Farmer program.

A University of Illinois grad with a Bachelors of Science degree in agriculture (ag journalism major), Rod joined Wallaces Farmer after working several years in Washington D.C. as a writer for Farm Business Incorporated.

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