2021 Research and Demonstration Farms Progress Reports

Horticulture Research Station


Tall Fescue Shade Cultivar Evaluation Trial

Adam Thoms, Thomas Gould, A.J. Lindsey, Nick Christians and Ben Pease

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 51–53

Tall Fescue Simulated Traffic Cultivar Evaluation Trial

Adam Thoms, Thomas Gould, A.J. Lindsey and Nick Christians

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 55–57

Effects of Smooth Crabgrass and White Clover Populations in Athletic Turfgrass Under Simulated Traffic

Thomas Donelan, Adam Thoms, Thomas Gould and A.J. Lindsey

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 59–60

Effects of Various Wetting Agents on Athletic Turfgrass Under Simulated Traffic

Thomas Donelan, Adam Thoms, Thomas Gould and A.J. Lindsey

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 61–62

Evaluation of Algae-Based Fertilizers on Kentucky Bluegrass Quality and Soil Health

A.J. Lindsey, Adam Thoms, Nick Christians, Thomas Gould and Thomas Donelan

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 63–64

Evaluation of Algae-Based Fertilizers on Zoysiagrass Quality and Soil Health

A.J. Lindsey, Adam Thoms, Nick Christians, Thomas Gould and Thomas Donelan

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 65–66

If You Build It, They Will Come: Jack Trice Sod Project

Thomas Gould and Adam Thoms

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 67–68

Recovery of Fairway Creeping Bentgrass (Agrostis stolonifera) and Tall Fescue (Festuca arundinacea) From Injury

Thomas Donelan, Thomas Gould, Adam Thoms and A.J. Lindsey

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 69

Sports Field Recovery from Unplanned Suspension of Maintenance Activities

Thomas Gould, Adam Thoms, Grant Thompson, A.J. Lindsey and Nick Christians

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 71–72

Evaluating the Efficacy of Intelligent Sprayer Technology in Conjunction with Warning Systems for Apple Diseases

Olivia Meyer and Mark L. Gleason

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 73–74

McNay Memorial Research and Demonstration Farm


Farm and Weather Summary

Logan Wallace and Brad Evans

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 5

Southern Iowa Grazing and Forage Budgets for Beef Cows

Logan Wallace

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 7–8

Water Quality Evaluation of Integrating Strips of Native Prairie into Rowcrop Agriculture Fields

Lydia English, Chris Witte, Matthew J. Helmers, Lisa A. Schulte-Moore, Matthew Z. Liebman and Tim Youngquist

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 9–10

Evaluating Cover Crops and Summer Annual Forages for Beef Cattle—Year 3

Chris A. Clark, Erika L Lundy-Woolfolk, Patrick B. Wall, R. Aaron Saeugling, Rebecca Vittetoe, Josh Michel, Logan Wallace, Brad Evans and Gary Thompson

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 11–13

Effects of Late Gestation Nutrient Restriction on Late Gestation Cows

Garland R. Dahlke, Devin Jakub and Erika L Lundy-Woolfolk

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 15–17

A Comparison of TDN and Net Energy Calculations for Estimating Empty Body Weight Change for Beef Cows Using ADF, NRC-01 Lignin and TTNDFd Methodology

Garland R. Dahlke, Devin Jakub and John Goeser

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 19–22

On-Farm Demonstration Trial: Crop Production Studies Harvest by Timing Trials

Mike Witt, Brandon Zwiefel and Gary Thompson

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 23–25

On-Farm Demonstration Trial: Crop Production Studies Soybean Date of Planting Trials

Mike Witt, Andrew Weaver, Brandon Zwiefel, Ken T. Pecinovsky, Zachary Koopman, Craig Riesberg, Ryan Farmer, Gary Thompson and Chad Hesseltine

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 27–28

On-Farm Demonstration Trial: Crop Production Studies Soybean Population Trials

Mike Witt, Zachary Koopman, Craig Riesberg and Gary Thompson

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 29–30

On-Farm Demonstration Trial: Growth Promoter Studies Envita™ Corn and Soybean Trials

Mike Witt, Zachary Koopman, Ken T. Pecinovsky and Gary Thompson

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 31–32

On-Farm Demonstration Trial: Growth Promoter Studies Humic Acid on Soybean Trials

Mike Witt, Zachary Koopman and Gary Thompson

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 33–34

McNay Reproductive Efficiency Report

Megan S. Hindman

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 35–36

Effectiveness of Foliar Fungicides by Timing on Foliar Diseases on Hybrid Corn

Alison E. Robertson and Matt L. Schnabel

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 7

Northeast Research and Demonstration Farm


Farm and Weather Summary

Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 5–7

Effectiveness of Foliar Fungicides by Timing on Foliar Diseases of Hybrid Corn

Alison E. Robertson and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 9–10

Evaluation of Soil-Applied Insecticide and Bt Corn for Management of Larval Corn Rootworm in Northeast Iowa

Aaron J. Gassmann and Ben Brenizer

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 11–13

Comparisons of One-pass and Two-pass Herbicide Programs for Weed Control in Corn

Prashant Jha, Damian D. Franzenburg and Iththiphonh Macvilay

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 15–16

Profile Morphology in Response to Liming in the Kenyon Soil

Nicola Timbas, Francis Akitwine, Ken T. Pecinovsky, Shillah Kwikiiriza, Gail R. Nonnecke and Lee Burras

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 17–18

Oat and Cereal Rye Variety Trial

Lydia English, Stefan Gailans and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 19–20

Long-Term Tillage and Crop Rotation Trial

Mark A. Licht and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 21

Denitrification Bioreactor in Northeast Iowa

Matthew J. Helmers and Carl Pedersen

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 23

On-Farm Demonstration Trial: Crop Production Studies Soybean Date of Planting Trials

Mike Witt, Andrew Weaver, Brandon Zwiefel, Ken T. Pecinovsky, Zachary Koopman, Craig Riesberg, Ryan Farmer, Gary Thompson and Chad Hesseltine

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 25–26

On-Farm Demonstration Trial: Growth Promoter Studies Envita™ Corn and Soybean Trials

Mike Witt, Zachary Koopman, Ken T. Pecinovsky and Gary Thompson

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 27–28

On-Farm Demonstration Trial: Fertility and Soils Starter Fertilizer on Corn Trials

Mike Witt and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 29–30

On-Farm Demonstration Trial: Growth Promoter Studies Flotegic™ Plant Health Trials

Mike Witt and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 31–32

On-Farm Demonstration Trial: Growth Promoter Studies Humic Acid on Soybean and Corn Trials

Mike Witt, Zachary Koopman, Gary Thompson and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 33–34

On-Farm Demonstration Trial: Crop Protection Studies Veltyma® Fungicide Application on Corn

Mike Witt and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 35–36

On-Farm Demonstration Trial: Crop Production Studies Planting Date—Corn

Mike Witt and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 37–38

Evaluation of Barley Varieties for Agronomic Characters and Panicle Diseases in Northeast Iowa

Shrishail S. Navi, Steven Harris and Ken T. Pecinovsky

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 39–40

Optimum Nitrogen Fertilizer Rates for Corn following Soybean and Corn following Corn in Northeast Iowa

Sotirios Archontoulis and Mitch Baum

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 41

Floyd County CREP Wetland Monitoring

William Crumpton, Greg Stenback, Steve Fisher and Jana Stenback

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 43–44

Effect of Annual and Perennial Cover Crops and Manure Application Timing on Yields

Brian Dougherty, Gabrielle Myers, Carl Pederson, Daniel S. Andersen, Matthew J. Helmers, D. Raj Raman and Kenneth J. Moore

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 45–46

2021 Home Demonstration Garden

Lesley Miliu and Ron Lenth

2022-01-31 2021 Research and Demonstration Farms Progress Reports • 47–48

Northern Research and Demonstration Farm


Northern Weather Summary

Matt L. Schnabel

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 5–6

Oat and Cereal Rye Variety Trials

Lydia English, Stefan Gailans and Matt L. Schnabel

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 9–10

Corn Date of Planting by Hybrid Trial Matt Schnabel

Matt L. Schnabel and Mark A. Licht

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 11

Interseeding of Grass and Legume Cover Crops Into Early Vegetative Stage Corn

Mark A. Licht, Fernando Marcos, Mike Witt and Angela Rieck-Hinz

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 13–14

Long-Term Tillage and Crop Rotation Trial

Mark A. Licht and Matt L. Schnabel

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 15

Soybean Date of Planting by Variety Trial

Matt L. Schnabel and Mark A. Licht

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 17

Soybean Yield Under N and S Fertilization

Mark A. Licht and Fernando Marcos

2022-05-31 2021 Research and Demonstration Farms Progress Reports • 19–21