Tag Archives: erosion control

Midwest Cover Crop Council Publishes Cover Crop Manual

Producers who want to prevent soil erosion, improve nutrient cycling, sustain their soils, and protect the environment have been returning to a very old practice: planting cover crops.

Although farmers have been using cover crops for centuries, today’s producers are part of a generation that has little experience with them. As they rediscover the role that cover crops can play in sustainable farming systems, many growers find they lack the experience and information necessary to take advantage of all the potential benefits cover crops can offer. That inexperience can lead to costly mistakes.

This guide will help you effectively select, grow, and use cover crops in your farming systems. While this guide isn’t the final word on cover crops, it is meant to be a useful reference.

CLICK HERE TO READ MORE AND TO ORDER THE BOOK

http://www.ag.purdue.edu/agry/dtc/Pages/CoverCropsFG.aspx

Annual Ryegrass Cover Crops in Iowa – Field Day on March 30th

COVER CROP FIELD DAY

RYEGRASS vs. CEREAL RYE

March 30TH – 10 a.m.

Steve Berger Farm, 1267 Elm Ave., Wellman, IA

Field plot site is one-half mile North at Elm Ave & 120th St.

Topics: Benefits of Cover Crops – Reduce erosion – Nitrogen credit for next crop – Build organic matter

Corn Stover Harvesting Will Hasten Moves to Cover Crops

Two recent developments, one by Archer Daniels Midland and the other by New Holland, will likely spur the need for cover crops, according to Dan Towery, an Indiana agronomist and cover crop specialist.

The first development: adding hydrated lime (calcium oxide) to corn stover renders the plant material sufficiently digestible (after aging in ag bags), according to studies at Iowa State and the Univ. of Nebraska. The stover is then combined with “wet distillers grains and solubles” (WDGS), a by-product of corn ethanol production. ADM is a leading supplier of distillers grains to the livestock industry. The company is hoping to speed adoption by cattle feeders.

According to an ADM news release, over a six-month period at Iowa State University, 210 steers received the WDGS treated solution mixed with the aged stove. This allowed researchers to cut the percentage of grain in animals’ rations by half—from 70 to 35 percent—without impacting the animals’ growth or development.

The other development is a piece of equipment that attaches to the head of a corn combine during harvest, grinding up corn stover and putting into windrows for easy collection.See more on the hardware by clicking here.

Dan Towery said if this practice becomes popular, it will effectively remove tons of corn stalk residue from fields, thus reducing organic matter important for soil building. Simultaneously, it will leave crop acreage barren and subject to severe erosion, unless farmers plant cover crops. Cover crops like annual ryegrass, crimson clover, cereal rye and radish will keep something growing in the ground, while also preventing erosion, providing organic matter and important soil nutrients as the cover crops decay.

Annual ryegrass, in particular, sucks up the available nitrogen and makes it available to the following corn crop. Likewise, it also breaks up compaction by sending roots deep into the soil (more than 5 feet deep over winter).For more information about annual ryegrass, visit this site.

PENN. Extension Recommends Annual Rye as One Cover Crop Option

No-till is no longer enough to conserve soil and produce good yields. Experts at the Pennsylvania No-till Day held Jan. 31 in West Middlesex, Pa., say it takes the combination of no-till and cover crops.

Read the whole article in Farm and Dairy Magazine

Here are excerpts:

Charlie White, a member of the crop management extension team for Penn State University, also spoke at the meeting, about making the most of cover crops.

He said a farmer must first decide what the needs are in the fields.Does he need to alleviate soil compaction, improve the soil structure, improve nitrogen fixation or nitrogen retention?

He suggested farmers mix different species with complementary growth periods and different architecture. Some suggestions he gave were radishes and turnips with the Austrian winter pea. He also suggested annual rye grass with a crimson clover or a blend of sorghum, sudangrass, soybeans and red clover.

Iowa Grower Builds Soil, Stabilizes Organic Matter Losses with Cover Crops

Going to No-till in the late ’70 helped reduce loss of organic matter,” said Iowa grower Steve Berger, “but adding cover crops in the past decade has really made a difference. “The organic matter present in the fence rows is between 5% and 6% but less than 4% in the fields. With cover crops, we have stabilized the losses we continued to see in our soybean rotation.”

Boosting organic matter is important, but Berger says these other things are more easily accomplished and witnessed:

Better, “mellower”, soil structure
increased microbial action
more root channels for corn roots to follow
the soil’s “bulk density” is down
infiltration rate of precipitation is up
soil erosion on his rolling, terraced fields is reduced

Berger has used cereal rye as a cover crop pretty consistently but tried annual ryegrass about five years ago because of its deeper rooting and its ability to soak up and store nitrogen for use during the next crop season. “That’s important, especially in wet years,” he said, “because annual ryegrass will cycle nutrients and keep them from being flushed out of the field through the tiles.”