Title Year Category
Description

In a Nutshell This project compares yields of fall brassica crops following a spring cover crop of oats and peas. In treatment plots spring cover was grazed by sheep; control plots were un-grazed. Key Findings There were no …


Publish Date
December 5, 2017

PFI Staff
Liz Kolbe
Cooperators
Carmen Black
Mark Quee
Description

In a Nutshell Two farmers provided enterprise budgets for cherry tomato production in 2017. Cherry tomatoes were grown in a heated greenhouse (Ann Franzenburg), and an unheated high tunnel (Emma Johnson). Revenue and expenses, including a breakdown of labor, was …


Publish Date
December 4, 2017

PFI Staff
Liz Kolbe
Cooperators
Ann Franzenburg
Emma Johnson
Description

In a Nutshell A roller-crimper presents farmers the opportunity to mechanically terminate cover crops without chemicals or tillage. This method is dependent on a large amount of cover crop growth and the cover crop reaching the flowering stage …


Publish Date
November 30, 2017

PFI Staff
Stefan Gailans
Cooperators
Tim Sieren
Description

Summary Farmers reported that in 59 of 63 site-years, properly managed cover crops had little to no negative effect on corn and soybean yield (and actually increased soybean yield in 8 site-years and corn yield in 2 site-years).


Publish Date
November 30, 2017

PFI Staff
Stefan Gailans
Cooperators
Bill Buman
Randy Caviness
Jim Funcke
Devan Green
Rick Juchems
Rob Davis& Darwin Pierce
Mark Pokorny
George Schaefer
Jerry Sindt
Rob Stout
Gary & Dave Nelson
Kelly Tobin
Collaborators
Iowa Learning Farms
Description

In a Nutshell After participating in the 2016 Summer Broccoli Variety Trial, Rob Faux wanted to do a 4-year comparison of his yields for Gypsy and Belstar. He collected data in 2017 to match his informal data collection …


Publish Date
November 22, 2017

PFI Staff
Liz Kolbe
Cooperators
Rob Faux
Description

In a Nutshell Successfully raising corn after a cover crop requires timely cover crop termination and N fertilization. Commonly, farmers terminate a cover crop 2-3 weeks prior to planting corn but generally do not need to apply any …


Publish Date
November 20, 2017

PFI Staff
Stefan Gailans
Cooperators
Dick Sloan
Tim Sieren
Description

In a Nutshell Three farms conducted replicated variety trials in high tunnels of tomato varieties: Big Beef, Rebelski, Big Dena. Key Findings No farm showed statistical differences in overall yield (lb/ft2) among varieties. Landgraf and Quee had statistical …


Publish Date
November 20, 2017

PFI Staff
Liz Kolbe
Cooperators
Tim Landgraf
Lee Matteson and Rose Schick
Mark Quee
Description

In a Nutshell Cover crops are gaining new attention for their ability to reduce weed pressure in soybeans. Specifically, when seeding soybeans directly into a thick cover crop. Farmer-cooperators Jack Boyer and Scott Shriver investigated the effect of …


Publish Date
November 15, 2017

PFI Staff
Stefan Gailans
Cooperators
Jack Boyer
Scott Shriver
Description

In a Nutshell Can frost-seeding small-seeded brassica species into crop residue be an effective spring cover crop strategy? Key Findings Among three locations, mustard provided the most groundcover. When frost-seeded in the spring, cover crop growth appears to …


Publish Date
October 16, 2017

PFI Staff
Stefan Gailans
Cooperators
Jeremy Gustafson
Chad Ingels
Steve McGrew
Description

In a Nutshell Small grain crops, like oats, are seeing renewed interest by farmers in Iowa. Iowa was once a nationwide leader in oats production, but many farm families have not grown them for a generation or two. …


Publish Date
October 16, 2017

PFI Staff
Stefan Gailans
Cooperators
Matt Schnabel
Ken Pecinovsky
Brian Lang
Wayne Koehler
Description

In a Nutshell Seeding cover crops earlier in the fall can translate to greater fall and spring biomass and may present the opportunity for more diverse cover crop species selection. Early maturing varieties of corn (104105-day) and soybean …


Publish Date
August 23, 2017

PFI Staff
Stefan Gailans
Cooperators
Jon Bakehouse
Description

In a Nutshell Cereal rye, oats and other small grains grass species have been proven as effective cover crops in corn-soybean systems in Iowa. Cooperators screened grass, legume and brassica species for fall and spring groundcover in hand-seeded plots …


Publish Date
July 25, 2017

PFI Staff
Stefan Gailans
Cooperators
Jeremy Gustafson
Chad Ingels
Clarke McGrath
Mark Peterson
Myron Rees
Bil Schrader
Paul Kassel