Person: Tim Landgraf

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Following a 2016 tomato trial on Rebelski and Mountain Fresh Plus, three farms conducted replicated variety trials in their high tunnels on Big Beef, Rebelski, and Big Dena. Each farmer planted two tomato varieties inside a high tunnel in a randomized, paired trial. Farmer-researchers for this trial were: Tim Landgraf (One Step at a Time Gardens in Kanawha), Lee Matteson and Rose Schick (Lee’s Greens in Nevada), and Mark Quee (Scattergood Farm at Scattergood Friends School in West Branch). Spacing, mulch, trellis style, and planting date were determined by farm, and described in Table 2. Plants for the trial were started indoors and transplanted to the high tunnel (in-ground).

November 20, 2017 

BLOG POST

Growing tomatoes in the high tunnel gives farmers an early jump on the tomato market, and can help protect the plants from some environmental stressors.  Two farmers (Tim Landgraf at One Step at a Time Gardens and Mark Quee at Scattergood Friends School) conducted replicated variety trials in high tunnels of two determinate tomato varieties, Mountain […]

December 2, 2016 

BLOG POST

Two farms conducted replicated
variety trials in high tunnels of two determinate
tomato varieties, Mountain
Fresh Plus and Rebelski.
Key Findings
• Yield at both farms was lower than
yields reported in other published high
tunnel variety trials.
• Rebelski yield was higher at Landgraf’s,
with 1.4 lb/plant difference.
• Rebelski yield was also higher at
Quee’s, with 2.1 lb/plant difference.

November 22, 2016 

RESEARCH REPORT

Since joining Practical Farmers of Iowa in 1999, Jan Libbey and Tim Landgraf have participated in 15 on-farm research trials. The importance of on-farm research for farm profitability was the center feature of their field day on August 14 in Kanahwa. Said Jan, “Partnerships we’ve found through PFI have a lot to do with the success we’ve […]

September 15, 2016 

BLOG POST

Field day at One Step at a Time Gardens will highlight on-farm research, pollinators – Aug. 14, near KanawhaFor Release: August 3, 2016 Download PDF (82 kB) Tim Landgraf and Jan Libbey in their squash plants Contacts: Jan Libbey | One Step at a Time Gardens | (515) 851-1690 | [email protected] | ostgardens.com Tamsyn Jones [...]

August 3, 2016 

NEWS RELEASE

In a Nutshell
• Five farmers compared two bell pepper
varieties, Olympus and Revolution,
to determine which produces better in
Iowa’s climate.
• Each farm planted four randomized
pairs of research plots, each pair with
10-20 plants of each variety.
Key Findings
• Pepper yield was significantly different
by farm, but treatment (variety) also
had a significant effect on yield. Revolution
yield was significantly higher
than Olympus when all farms were
analyzed together.
• Revolution produced more pounds
and number of peppers per ft2 and
per plant than Olympus at three of
five farms. The remaining two farms
saw no difference in yield between the
varieties.
• Average plant yield of green bell peppers
across all farms was 4.3 lb/plant
for Revolution and 4.03 lb/plant for
Olympus.
• Plant spacing was different by farm,
but end-of-season yield for green bell
peppers ranged from 1.82 – 2.66 lb/ft2.

December 7, 2015 

RESEARCH REPORT

Objectives: 1. Determine which pepper variety, Olympus or Revolution, produces more marketable fruits and total yield in side-by-side field trials in Iowa.

July 5, 2015 

RESEARCH PROTOCOL

Aster Yellows in GarlicPublished: August 1, 2013 Download PDF (844 kB) View Fullscreen

August 1, 2013 

RESEARCH REPORT

Solar-powered potential: Practical Farmers of Iowa field day explores ways to harness solar energy on the farm June 23, near Kanawha For Release: June 11, 2013 Download PDF (140 kB) View Fullscreen

June 11, 2013 

NEWS RELEASE

Labor4Learning Program helps beginning farmers get paid on-the-job training from ten established farms around IowaFor Release: January 29, 2013 Download PDF (231 kB) View Fullscreen

January 29, 2013 

NEWS RELEASE