Decade of demos and data
Dr. Jason Weirich, MFA vice president of Agri Services, leads a tour group at the Training Camp field day on Aug. 16. This is the 10th year for research at this site in the Missouri River bottoms outside Boonville.
During a session on foliar nutrition and fungicides, Brian Norton, Syngenta agronomic service representative, discusses the different classes of fungicides and how their modes of action help to prevent or cure plant diseases.
In mid-September, corn in the fungicide timing trials show obvious differences. The healthiest-looking plants, at right in the photo, are the ones sprayed at the optimal time of VT (tassel). Plants to the left were sprayed at various stages earlier in the season.
Cameron Horine, MFA staff agronomist, coordinates agronomic research efforts, including Training Camp and other replicated trials across MFA territory. Here, he leads a session on nutrient-efficiency product research.
Soybean trials at Training Camp feature new and experimental varieties of MFA’s own MorSoy line as well as partner brands. These varieties are also used in trials that evaluate fungicides, seed treatments, foliar nutrition and other agronomy products.
MFA held the first Training Camp field day in August 2012 at its 20-acre research site in Boonville. Replicated trials have been held here every year since except 2019 when the Missouri River flooded the area.
Thad Becker, MFA precision data manager, displays a chart showing ammonia loss from the soil after applications of granular urea either alone or with various stabilizers. Trials verifying the importance of nitrogen stabilizers have been conducted for several years at Training Camp and other MFA research plots.
Dara Boardman, MorCorn product manager, second from left, shares information on this year’s hybrid lineup with field day participants. In addition to yield trials, all of the MorCorn hybrids were included in studies to see how each reacted to the fungicide Trivapro.
Adam Jones, MFA natural resources conservation specialist, demonstrates the structural differences between soil that has been continually tilled, on the left, and soil taken from a no-till field of cover crops. The tilled soil falls through the grate into the water while the other stays intact.
When MFA held its first Training Camp in August 2012, the event was billed as a real-world research site for some of the latest innovations in agronomic products and services as well as a hands-on teaching tool for employees.
Now in its 10th year, Training Camp continues to serve these important purposes but also provides something even more valuable for MFA and its customers—confidence.
“The ultimate goal of our research is to help growers make the best decisions on their farms,” said Cameron Horine, MFA staff agronomist. “We want them to know what products are out on the market that can help them boost production and improve practices. By taking a look at these things ourselves—in our own replicated trials, in our own geography—we can be confident in the results and recommendations we make.”
More than 300 employees and industry representatives from across MFA territory attended the 2021 Training Camp field day on Aug. 16 at the 20-acre research site in the Missouri River bottoms outside Boonville. Participants viewed trials and heard presentations on MorCorn hybrids and MorSoy varieties, fungicides, seed treatments, foliar nutritionals, nitrogen stabilizers, late-season insect feeding, cover crops and more.
Horine, who coordinates Training Camp and more than two dozen other replicated field trials across MFA’s trade territory, said the testing program not only includes studies designed by the MFA agronomy team but also evaluates emerging products from other agricultural vendors.
“We have two parts to all of our testing,” Horine said. “We work with a number of companies that are bringing in new products and want us to have a first look at them. Often, we’re testing a product while it’s still two or three years from the marketplace. That gives us a chance to get our own insights and determine whether or not we want to move forward in providing that product to our growers. We’re only going to sell something if we know it works.”
“The other reason for our trials is applied agronomics,” he continued. “How is this going to be beneficial to the producer? How can we make sure our recommendations make sense? And is it bringing an added benefit to the grower? Those are just a few of the questions we’re trying to answer every year.”
MFA’s small-plot research takes place at Boonville and another 35-acre site east of Columbia. Each study is set up in four-row plots that are 10 feet wide by 25 feet long, Horine explained, and they are replicated to reduce variability and provide multiple data points for a better statistical yield average. To further protect the integrity of the data, harvest is a very scientific process, he added.
“We use a special plot combine, and we only harvest the middle two rows, which provides a buffer between treatments,” Horine said. “The combine has a specialized yield monitoring and weighing system. I stop at the end of each plot and wait for all the grain to go into the weigh bucket. It weighs the actual amount of grain, takes moisture readings and calculates test weight. All of those numbers flow into a statistical sofware program and are analyzed to determine if there is a significant difference between treatments.”
Typically, Horine said, the trials are set up for multiple years of study to verify results.
“I prefer at least three years because every year is different,” he said. “We don’t like to push out information after just one year, and even with two years, it’s hard to get a trend. Maybe we had a really wet year and then a really dry year, or maybe we had two really great years. In three years of trial work, generally speaking, we’ll get a whole cycle of what we normally see here in Missouri, and we can feel more comfortable about the data.”
Although details won’t be available until after harvest and analysis by Horine and the MFA agronomy team, here are a few highlights and observations from this year’s research and Training Camp presentations. Look for more detailed information and charts in the March 2022 issue of Today’s Farmer.
Fungicides have been a key focus of MFA’s agronomic research for the past several years, with several different trials examining timing, variety response and product evaluations. These studies are not meant to merely show the value of fungicides but to delve deeper into how they can be used most effectively, said Jason Worthington, MFA director of account management who coordinated the research program in his previous position as senior staff agronomist.
“At this point, we know fungicides work,” Worthington said. “You’re going to get yield benefit from them. Now, we’re interested in the nuances. Can we increase that benefit by applying fungicides at the right time or by putting something else with it to enhance performance?”
This is the third year for research on fungicides by hybrid and variety at the Training Camp site. All of MFA’s commercial MorCorn and MorSoy products were tested with fungicides, Trivapro on corn and Miravis Top on beans. They were applied at the same time—VT to R1 for corn and R2 to R3 for soybeans. Replications of the same corn and soybean products without fungicides were used as checks. Visual differences were observed, and then yield data was used to measure the impact.
Results from these studies in 2019 and 2020 have shown a wide variance in fungicide impact, Horine said. On the higher side, some corn hybrids averaged increases of 8 to 15 bushels per acre versus untreated plots, while others only yielded a few bushels more. In soybeans, the differences were 4 to 6 bushels per acre versus untreated plants, but many varieties showed a less-positive impact. There were even some hybrids and varieties that had zero yield advantages.
“The purpose of these trials is to see which varieties are responding to fungicides better,” Horine explained. “For producers trying to make decisions on when and where to spray fungicides, this information can be valuable and help them get a better return on investment.”
When looking at fungicide timing, however, results have been fairly consistent, Horine said. MFA’s research reinforces the labeled recommendations of applying fungicides in the early reproductive stages of VT-R1 in corn and R2-R3 in soybeans.
“From the two years of data that we have so far—and we have the study again this year—on corn, that VT to R1 time frame is optimal,” he said. “We still see an added benefit by having a fungicide at the other timings. That’s just the sweet spot. We’ve seen the same thing in soybeans. It falls right along with what’s on the label. That R2-R3 time frame is really where it’s consistently paying.”
With this summer’s severe outbreak of southern rust, visual differences in fungicide treatments have been especially striking in the corn plots, Horine added.
“This year, especially at our Boonville site, the fungicide timing trials have really shown what is working well against southern rust,” he said. “It’ll be interesting to see what happens when we harvest those plots.”
Studying the impact of nitrogen stabilizers is nothing new for MFA agronomists, but this year’s research put renewed focus on the different options available to prevent loss of this critical crop nutrient through volatilization, denitrification and leaching.
“We have a pretty good understanding that we need stabilizers, especially when it comes to early-season nitrogen applications, but we also do a lot of top-dressing on corn now,” Horine said. “The last few years we’ve had really wet springs, and even some wet falls. This summer, you could see nitrogen loss in fields every day just driving down the road. We want to reiterate the importance of stabilizers and show people the impact of how much nitrogen they’re potentially losing by not having proper stabilization.”
Thad Becker, MFA precision data manager, led a session on nitrogen stabilization at the Training Camp field day in August. He displayed a nitrogen-deficient corn plant to illustrate the visual symptoms and discussed the need for N throughout the crop’s growth cycle.
“Once we get to the silking stage, the corn has only taken up about two-thirds of the nitrogen it needs. We’ve still got a third to go,” Becker said. “So, we have to make sure a third of our total nitrogen is left in the gas tank to feed that plant, which means it needs to be around pretty late in the season. If that nitrogen source isn’t protected, you can’t be sure it’ll still be there.”
Whether a grower chooses to apply nitrogen in the form of anhydrous ammonia or granular urea, he continued, MFA has nitrogen stabilization products to protect that fertilizer investment. N-Serve and Centuro are two MFA-recommended products for anhydrous; N-Guard and SuperU are stabilizers of choice for urea.
“I will tell you, nitrogen trials are difficult to measure,” Becker said. “If you ask me which is better, I’d say we have not found much difference between them, but we’ve been pleased with what we’ve seen. The important thing is that we keep nitrogen available for the crop. If not, it can be one of the most yield-limiting factors in the field.”
COVER CROPS AND SOIL HEALTH
New to the offerings at Training Camp this year was a demonstration of cover crops, a hot topic in the agricultural community right now.
“There’s a lot of talk about cover crops, from carbon credits to the sustainability aspects,” Horine said. “We wanted to take a look at some of the added benefits of cover crops and understand more about the soil health aspects.”
The cover-crop plot at Training Camp consisted of a summer blend of forage sorghum, pearl millet, cowpeas and sunflowers. It turned out to be a timely demonstration in a year when many fields were flooded late in the spring and lay fallow over the summer, Horine said.
“Down in our river bottoms, we had a lot of guys who lost their corn crop, and this could be another option than just trying to replant beans,” he said. “If you’re a cow-calf producer as well, maybe you can use a summer mix of cover crops and get some forage or hay out of it.”
Adam Jones, MFA natural resources conservation specialist, led the cover-crop presentation with a visually striking demonstration. He took soil samples from a continuously tilled field and soil samples from a no-till cover-crop field and dropped each into a clear cylinder of water with a grate at the top. The tilled soil disintegrated into the water, while the no-till soil stayed mostly intact.
“What’s the difference?” Jones asked attendees. “Biology. The only difference is how much biology is here. The soil from the cover-crop field retains its structure because it’s held together by living roots, root exudates, earthworm goop, mycorrhizal fungi, microbes. In the other sample, the particles have nothing to keep them together, so they detach and are at the whim of wherever the water is going.”
Planting cover crops and reducing tillage are two ways to increase biology in the soil. “Our goal is to put living roots in that soil for as much of the year as we possibly can,” Jones explained.
The benefits of cover crops are well documented, he said, from reducing soil erosion and suppressing weeds to moderating soil temperatures and building organic matter. But, he cautioned, growers must have clear objectives and plans for terminating and planting into cover-crop fields.
“In the last 15 years, we would have solved a lot of issues if growers had answered one question before putting cover crops on their farm: Why?” Jones said. “A lot of these scenarios have gone awry because we’ve lost focus of what the objective is. Knowing the answer to that question can guide decisions in the right direction.”
- Created on .
- Hits: 1082