Liz Morrison

Liz
Morrison
Articles
Saturated stream buffer test 1

A 120-foot-wide ribbon of deep-rooted switchgrass spools along the Yellow Medicine River, a meandering prairie stream that winds through Doug Albin’s Minnesota farm. For decades, this stream-side grass strip has filtered out pollutants in surface runoff from adjacent cropland.

Make data pay: Track variable rate cost per bushel 1

Integrating financial data and geo-referenced field data is the most sophisticated level of precision ag management, says Dan Frieberg, president of Premier Crop Systems. Precision software captures direct input costs for every 60x60-foot square of the field. The software also allocates indirect expenses by bushel, including insurance, equipment and land costs.

3 steps to create management zones

Precision ag expert Kevin Kruize uses three steps to create management zones in a corn-soybean rotation field. Those steps include pulling data from different precision sources, analyzing data layers and compare productivity and defining preliminary management zones.

Make Data Pay: Use data to manage zones

The first step in turning geo-referenced field data into useful knowledge is comparing productivity across years and crops, says Kevin Kruize, precision ag manager at Central Valley Cooperative.

6 factors impact runoff risk

Intense rainstorms stripped fertile soil from unprotected farm fields across the Corn Belt last spring. Parts of east-central and northwest Iowa lost as much as 24 tons of topsoil per acre in May, according to Daily Erosion Project estimates.

Make data pay: Improve agronomic decisions 1

How do you create real value from your GIS field data?

“By converting data to knowledge” that can improve production decisions, says Dan Frieberg, president of Premier Crop Systems, West Des Moines, Iowa, a precision agriculture software company.

That means “going beyond what you can see on a map,” and moving to sophisticated data analysis at the field level and across thousands of acres of pooled data, he says.

cover crop roots
Cover crops for beginners

Are you thinking about trying a cover crop next fall? It’s never too early to plan, and secure your seed supply. “Be very informed before you start. Talk to experienced cover croppers. Do your homework," says Nick Bowers, cover crop seed dealer.

Residue management can reduce continuous corn yield penalty 4

Crop rotation is the only certain way to eliminate the continuous corn yield penalty, says Joe Lauer, University of Wisconsin corn agronomist. But tillage and good residue management can reduce it.

Farmer tracks profits using data by management zone per field

Growing crops is always a gamble. That’s why Jeremy Hopper runs the numbers. Hopper manages several thousand acres of row cropland near Tiptonville, Tenn. Precision data guides his agronomic decisions and helps him hone his operation.

Data, field maps help farmer track profits

Jeremy Hopper, Tiptonville, Tenn., uses precision data to make many agronomic and management decisions. Using field maps and data, he can see yield distribution and evaluate hybrid performance, as well as influence irrigation and row spacing choices.

Ryan Britt of Salisbury, Mo., discusses weed issues seen during soybean harvest
Create a weed-management strategy

You plan years ahead for crop rotation, fertilizer and machinery acquisitions. Since the rise of glyphosate-resistant weeds, you should be doing the same for your herbicide program, says Lisa Behnken, a Minnesota Extension crops specialist.

Farmer stops erosion on highly erodible land

Though fertile — in a good year the Braggers raise 200-bushel corn and 50-bushel soybeans — their clay-loam hills are very vulnerable to water erosion. It’s the kind of terrain that some believe should not be cropped at all. Yet the Braggers farm this fragile land intensively, achieving high yields with little soil loss.

Including soybeans in crop rotation provides advantages

Corn rootworms in this longtime continuous-corn field seem to have become immune to the Cry3Bb1 trait, the most common source of transgenic rootworm protection, says Keith Schrader, who farms with his sons near Nerstrand, Minn. In 2011, YieldGard VT Triple knocked out just 25% of corn rootworms in this field, compared to an expected kill rate of more than 95% in fields where the trait works, says Ken Ostlie, University of Minnesota Extension entomologist.

Resistant Palmer amaranth hits Midwest, changes control programs 8

On July 6, 2011, Joe Steinkamp changed his entire weed-management program. Steinkamp raises seed soybeans and white corn on Ohio River bottomland near Evansville, Ind. On that July day two years ago, his neighbor brought over some weeds that had survived Roundup. “He said, ‘Joe, do you know that these are?’ I said, ‘I sure do!’ ”

Is Conventional Corn Worth Considering? 2

Carter Charles manages insects and weeds in his corn fields near Cyrus, Minn., without the benefit of genetically modified seeds.

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