Decreasing Inputs to Benefit Iowa’s Water

With a rich family history in rural Harrison County, Iowa Learning Farms farmer partner Brandon McHugh is no stranger to the world of agriculture. With 1,700 acres of crops, 150 head of cattle, and four poultry buildings, he knows the importance of being a steward of the land. No-tillage and cover crops have helped Brandon reduce inputs, but he continues to experiment with new ways to lessen his impact. As a member of Iowa State University’s Master Conservationist Program, Brandon hopes to be a leader in soil and water quality.

Brandon McHugh stands in front of his cover crop seed drill

Born into a farm family, Brandon was immersed in agriculture as a child. After graduating high school, he chose to enlist in the U.S. Army and served in Kuwait for three years. Returning in 1995, Brandon again became an important part of his family’s cattle and row crop operation. It was at this time that he also decided to further his education and earned his degree in farm management from Iowa Western Community College. With his new education and partnership in the farm, Brandon established Two Oaks Red Angus in 2005. Since then, Brandon’s operation has added four poultry buildings that supply broiler chickens to a large supermarket chain. Over his career in agriculture, Brandon has come to see the importance of conservation on Iowa’s landscape. Mainly utilizing cover crops and no-tillage, he is working towards his larger goal of reducing the need for human-made inputs. To help boost the growth of his cover and cash crops, Brandon recently installed subsurface irrigation. This new addition to his farm will also reduce risk during dry years. Brandon’s hope is that combining these practices will lead to more stable soils and cleaner water.

Brandon’s four poultry buildings

In his push towards conservation, Brandon didn’t stop with common practices. His most recent efforts have been looking at the benefits of agricultural biologicals that could help with a crop’s nutrient uptake. Ideally, these products would reduce the need for commercial fertilizer by taking additional nutrients out of the soil and air. Brandon also has interest in utilizing drones for pesticide application. With consistent labor hard to find, his hope is that the new technology could save the need for another employee. 

The filter setup for Brandon’s subsurface irrigation system

Brandon’s push for conservation hasn’t come without challenges. His biggest hurdle is the lack of reliable help. He estimates he has had 12 employees since 2006. Brandon also struggled establishing cover crops on his first attempt. Despite being unsuccessful initially, he planted cover crops again. “You can’t always get discouraged when you have a flop, farming is a marathon.” His overarching goal with cover crops is to benefit the soil in the long run, not improve his yield. Cover crops have also helped Brandon grow a more consistent crop over the years. He notes seeing his fields continue to produce fair yields even during seasons of adverse weather. For Brandon, a consistent crop is crucial to a farm. With no guarantee of a crop every year, Brandon thinks farmers should be doing all they can to reduce variability.

As Brandon looks into the future of nutrient management, he can’t help but remember his roots. Being part of a long line of farmers, he sees the benefits of growing up in Iowa. Even with hardships, Brandon finds joy in waking up every day to work with his livestock and surround himself with nature. With the legacy he has built upon, Brandon pushes to better the land so it can someday be passed on the next generation of Iowa farmers.

-Mitch Harting

The Coolest Drainage Plots in the US


Across much of the agricultural Midwest, tile drainage has been widely utilized for decades to facilitate crop production in areas where wetness limits crop productivity. However, as you journey north to the Red River Basin of northwest Minnesota, you’ll encounter a landscape where tile drainage is largely in its infancy.

The most recent episode of the Iowa Learning Farms Conservation Webinar Series takes us up north to the University of Minnesota-Crookston to some of the newest AND coolest drainage plots in the US (literally … their average annual temperature is 40°F)!  With average annual precipitation of 23” and such a short growing season, is tile drainage worth it?

Dr. Lindsay Pease, Assistant Professor and Extension Specialist in Nutrient and Water Management, explores numerous facets of this question in her recent talk Does Tile Drainage Pay if You Only Get 20 inches of Precipitation?.


Pease’s drainage plots were established in Fall 2019 – with drained and undrained plots side-by-side. Their current crop rotation includes wheat and soybean. 

With four full seasons of crop production now under their belts, tile drainage was found to—

  • Boost crop yields in wet years (little/no yield impact in dry years)
  • Allow production to be more consistent year-to-year
  • Result in drier soybeans in the drained plots (potential to harvest earlier)
  • Move nitrogen down deeper in the soil profile

Check out Pease’s full presentation, Does Tile Drainage Pay if You Only Get 20 inches of Precipitation?, for further details on this research—and for all the dog people out there, you can look forward to several appearances by this most delightful Corgi field research assistant!

To catch up on any other webinars in the ILF Conservation Webinar series, all past presentations are archived on the ILF Webinars page for your viewing pleasure.

Ann Staudt

Protecting Soil and Water Through Climate Resilience

With climate change becoming an ever-increasing topic of discussion, it is important to begin thinking about the actions that can help us maintain productivity, stability, and sustainability. In our most recent webinar, Dr. Rick Cruse, professor of agronomy and director of the Iowa Water Center at Iowa State, discusses Soil Conservation and Water Management – The Keys to Improving Climate Resilience.  

Agriculturalists have put great effort into growing crops in all kinds of conditions, whether it be infertile soils, too much water, or not enough water. Looking at yield maps across a field, it is easy to see not all areas are ideal for crop growth. Dr. Cruse notes that these low producing areas often align with highly eroded parts of the field. With less topsoil leading to reduced yield, it is essential to begin looking at how we can protect topsoil in these areas for the future.

With a changing climate, it is also important to consider the changes in water availability to crops. In addition to rainfall, underground water plays a key role in crop production. Shallower water tables have the ability to help feed crops as they grow. As noted by Dr. Cruse, the water table depth correlates with the topography of the land. Knowing where the water table is in a field can help us better align what is grown with water availability. Learn more about improving climate resilience by watching this week’s full webinar. Also, tune in next week as we hear from Lindsey Pease on Tile Drainage with Only 20 Inches of Rain, and check out our archives for past webinars.

Mitch Harting

Agricultural Climate Resilience Improvement Strategies

Please join us for the 300th episode of the Iowa Learning Farms Conservation Webinar Series at noon CST, Wednesday, Feb. 28, featuring Rick Cruse, professor of agronomy and director of the Iowa Water Center at Iowa State University. Cruse was raised on a farm in Northeast Iowa and has been engaged with Iowa farmers while working at Iowa State University for over 40 years. His research, teaching and extension efforts address management impacts on soil erosion, water and crop production.

In the webinar, “Soil Conservation and Water Management – the Keys to Improving Climate Resilience,” Cruse will discuss current climate and agricultural practices as well as highlighting factors and practices which affect agricultural climate resilience. He will focus on the importance of water and water management and discuss actions including draining excess water, capitalizing on water sourced from shallow groundwater and maximizing water infiltration and storage through improving soil health.

“Water and water management are the most fundamental components of climate-resilient farm plans,” said Cruse. “We are eager to help Midwest farmers gain a better understanding of the underutilized water resources that they may already have, and how those resources can substantially improve their climate resilience.”

Webinar participants are encouraged to ask questions of the presenters. People from all backgrounds and areas of interest are encouraged to join.

This episode marks the 300th in the ILF Conservation Webinar Series since 2011. These weekly webinars consistently draw live audiences exceeding 100 participants, offering insights on a broad range of topic areas as well as opportunities to ask questions of the presenters. The webinar series has logged more than 75,000 live and archival views to date.

Webinar Access Instructions

To participate in the live webinar, shortly before noon CST Feb. 28:

Click this URL, or type this web address into your internet browser: https://iastate.zoom.us/webinar/register/WN_xtAwWXycQZW8iwtNLz34GA#/registration

Or, go to https://iastate.zoom.us/join and enter webinar ID: 999 3709 5398

Or join from a dial-in phone line:

Dial: +1 646 876 9923

Meeting ID: 999 3709 5398

The webinar will also be recorded and archived on the ILF website, so that it can be watched at any time. Archived webinars are available at https://www.iowalearningfarms.org/webinars For a list of upcoming webinars visit https://www.iowalearningfarms.org/events-1

A Certified Crop Adviser board-approved continuing education unit (CEU) has been applied for. Those who participate in the live webinar are eligible. Information about how to apply to receive the credit will be provided at the end of the live webinar.

Lake Drainage in Iowa, 1880-1920: Why, How and Effects on Conservation Today

Please join us for the Iowa Learning Farms webinar at noon CST, Wednesday, Jan. 11, featuring Joe Otto, director of special projects and partnerships, Soil and Water Conservation Society (SWCS), and doctoral candidate in history, University of Oklahoma. Otto directs operations for over $2 million in federal and state grants, including partnerships with Iowa NRCS and the Iowa Department of Agriculture and Land Stewardship. As SWCS historian, he works to preserve the history of the Conservation Movement. His doctoral research focuses on the agricultural and environmental history of Iowa, with a focus on drainage water management, drainage districts, and the contested process of planning, building, and maintaining drainage systems.

In the webinar, “Lake Drainage in Iowa, 1880-1920,” Otto will provide a look back at events in the development of Iowa’s agricultural industry which forever changed the landscape through lake drainage and gave rise to the creation of the State Board of Conservation (predecessor to the Iowa Department of Natural Resources) in 1918. He will discuss the goals and controversies surrounding lake drainage and the redefinition of the physical and legal barriers of the state’s numerous depressional lakes. Otto will also cite the sometimes complex conflicts over the benefits of drainage and the ethical stewardship of private lands and public waters.

“During this historical period, farmers and landowners established a large patchwork network of drainage infrastructure that continues to operate beneath Iowa’s fields and farms,” said Otto. “Reconnecting with this historical moment in Iowa’s agricultural past that is as forgotten as it is brief provides a foundation for understanding some of the water conservation and quality challenges facing us today. Exploring Iowa’s history from the water’s edge makes the past a lot muddier.”

Webinar participants are encouraged to ask questions of the presenters. People from all backgrounds and areas of interest are encouraged to join.

Webinar Access Instructions

To participate in the live webinar, shortly before noon CST Jan. 11:

Click this URL, or type this web address into your internet browser: https://iastate.zoom.us/j/364284172

Or go to https://iastate.zoom.us/join and enter meeting ID: 364 284 172

Or join from a dial-in phone line:

Dial: +1 312 626 6799 or +1 646 876 9923

Meeting ID: 364 284 172

The webinar will also be recorded and archived on the ILF website, so that it can be watched at any time. Archived webinars are available at https://www.iowalearningfarms.org/webinars For a list of upcoming webinars visit https://www.iowalearningfarms.org/events-1

A Certified Crop Adviser board-approved continuing education unit (CEU) has been applied for. Those who participate in the live webinar are eligible. Information about how to apply to receive the credit will be provided at the end of the live webinar.

A Roadmap to Water Resilience in the Corn Belt

Please join us for the Iowa Learning Farms (ILF) webinar at noon CST, Wednesday, Nov. 9, featuring John McMaine, the William Mibra Griffith and Byrne S. Griffith Chair in Agriculture and Water Resources, South Dakota State University. Dr. McMaine is passionate about solving challenges related to water and weather through his work in extension and research in South Dakota. He regularly works with individuals and organizations across the agricultural and environmental spectrum to address challenges and assist in water management practice decision making.

In the webinar, “Building South Dakota’s Roadmap to Water Resilience,” McMaine will discuss water quality and water management challenges related to changing climate and landscape conditions. He will draw on studies of water quality, water management, and soil health in South Dakota that are also relevant to producers in other Corn Belt states. McMaine will also present current research from South Dakota regarding soil health and conservation drainage and how to build resilience into agricultural systems.

“As South Dakota continues to see changes to climate and landscape and as the Corn Belt pushes further west and north, the imperatives for improving water management in the field has implications for both the farmer and downstream users from water quality and water quantity standpoints,” said McMaine. “We cannot control the weather, so it is critical that we take effective steps through structural and management practices to ensure we make the most of the water we have to work with.”

Participants in Iowa Learning Farms Conservation Webinars are encouraged to ask questions of the presenters. People from all backgrounds and areas of interest are encouraged to join.

Webinar Access Instructions

To participate in the live webinar, shortly before noon CST Nov. 9:

Click this URL, or type this web address into your internet browser: https://iastate.zoom.us/j/364284172

Or go to https://iastate.zoom.us/join and enter meeting ID: 364 284 172

Or join from a dial-in phone line:

Dial: +1 312 626 6799 or +1 646 876 9923

Meeting ID: 364 284 172

The webinar will also be recorded and archived on the ILF website, so that it can be watched at any time. Archived webinars are available at https://www.iowalearningfarms.org/webinars For a list of upcoming webinars visit https://www.iowalearningfarms.org/events-1

A Certified Crop Adviser board-approved continuing education unit (CEU) has been applied for. Those who participate in the live webinar are eligible. Information about how to apply to receive the credit will be provided at the end of the live webinar.

New USGS Water Cycle Includes Humans for the First Time

Earlier this month the US Geological Survey released an updated version of the water cycle to reflect the impact humans have on our water. This update comes to the now-renamed Natural Water Cycle released in 2000 depicting the water cycle under natural conditions and without human influences.

Human water use has and continues to affect where water is stored and how water moves. Not to mention the impact on water quality. Across all landscapes – urban and rural – fertilizers, pesticides, soil and more are transported into rivers and groundwater. Power plants and factories return heated and contaminated water to rivers. The transport of these pollutants can lead to harmful algal blooms, unsafe drinking water, and cause habitat degredation for wildlife. 

Cover crops are a tool for the farmer and gardener alike to help reduce the transport of nutrients and soil downstream and slow the flow of the water, offering time for increased infiltration. To learn more about cover crops check out our website and download the FREE, and newly updated, Whole Farm Conservation Best Practices Manual.

Liz Ripley

Oct. 20 Virtual Field Day: Exploring a Pumped Bioreactor System for Improved Water Quality

Iowa Learning Farms, in partnership with the Iowa Nutrient Research Center and Conservation Learning Group, will present a virtual field day on Thursday, October 20 at 1 p.m. CDT. Join us for a live conversation with Iowa State University Ph.D. candidate, Lindsey Hartfiel, Michelle Soupir, professor and associate chair for research, department of agricultural and biosystems engineering, Iowa State University and Natasha Hoover, water quality research scientist at Iowa State University.

Lindsey Hartfiel stands near the pumped bioreactor system at the ISU Uthe Farm.

In recent years, bioreactors have shown themselves to be efficient and dynamic tools for improving water quality through denitrification. Now, a new innovation suggests an additional use for these bioreactors, even when water isn’t flowing from the field tile drainage.

This new design is a pumped bioreactor system with a pilot project installed just outside Ames. Pumping water through a bioreactor allows it to be used beyond the seasonal patterns of subsurface drainage, extend its use to new applications, and very possibly extend the life of the bioreactor itself. This virtual field day will explore the results of the design and discuss future plans for the project.

Participants in Iowa Learning Farms virtual field days are encouraged to ask questions of the presenters. People from all backgrounds and areas of interest are encouraged to join.

Virtual Field Day Access Instructions:
To participate in the live virtual field day, shortly before 1:00 pm CDT on October 20, click HERE or visit http://www.iowalearningfarms.org for the registration link.

Or, join from a dial-in phone line:
Dial: 1.312.626.6799     
Meeting ID: 914 1198 4892

The field day will be recorded and archived on the ILF website so that it can be watched at any time. The archive will be available at https://www.iowalearningfarms.org/virtual-field-day-archive.

Participants will be eligible for a Certified Crop Adviser board-approved continuing education unit (CEU). Information about how to apply to receive the credit will be provided at the end of the live field day.

Liz Ripley

How can Long-Term Soil Health Practices Improve Water Quality?

On this weeks webinar Dr. Vinayak Shedekar from The Ohio State University and Dr. Will Osterholz with the U.S Department of Agriculture, Agricultural Research Service, and Soil Drainage Unit spoke about their work with long-term soil health practices and how they can improve water quality. They each shared a different side of the project, giving perspectives from both the statistical and in field practices side.

Shedekar’s research is currently focused on agricultural water management, monitoring and modeling of soil health. He emphasized that it would be wrong not to note the obvious visible difference in the land that is covered (LT Soil Health) versus the land that is left bare (conventional). Throughout the webinar, Shedekar and Osterholz discuss the different variables that were researched and analyzed. 

In the webinar, only a year of data was analyzed and shown. The data is from January 2021 through December 2021. But even in the one year of data, many conclusions can be drawn from the different approaches and practices. Below is an example to show the difference in flow rate in a long-term soil health field (DB1) verse a conventional drainage field (MH1).

Check out this week’s webinar for more of their findings!

Hannah Preston

Feeling drained? So are our agricultural lands! Jane Frankenberger discusses transformative drainage and the importance of keeping water in the landscape.

In this week’s webinar, Jane Frankenberger with Purdue University, presented her work with the Transforming Drainage project. The project was very successful in finding the benefits and costs of storing drainage water in the landscape. The National Ag Library Ag Data Commons is home to the database from the subsurface drainage research sites where the drainage storage practices were studied. The results from these studies can be easily accessed using the data visualization tool the project developed. This project overall brought together and synthesized research, produced results that could be easily accessed, and increased education and adoption.

Frankenberger highlighted the advances made by the project in various water storage practices. Different field practices that were highlighted to help control water in the landscape were controlled drainage, saturated butters and drainage water recycling. The goal of transforming drainage is to reduce uncertainty and risk related to water availability and reduce nutrient loss from agricultural fields.

Education tools available

The controlled drainage sustainability tool is just one of many available to the public. This one is used to identify land in the Midwest that may be ideal for controlled drainage or sub irrigation. This tool is used by farmers, advisors, educators and those in the conservation field.

Drain spacing tool, drainage rate calculator, controlled drainage sustainability tool, Field Nutrient Loss app, and interactive maps showing the likely extent of agricultural drainage across the Midwest are all tools that Frankenberger discusses in this weeks webinar.

Be sure to check out the webinar recording to learn more!