“Strong and speedy Internet access is important to our growers, so NCGA supports the expansion of broadband in rural America,” said Ethan Mathews, manager of Public Policy and Regulatory Affairs for NCGA said. “However it must not come at the expense of high-precision GPS.”

Although LightSquared states that solutions to the interference problem have been developed by several independent companies, the company has yet to provide access to either the test results or the devices. Further, the FCC and the National Telecommunications and Information Administration are continuing their evaluation of theGPS interference issue. NCGA will look to the FCC and NTIA to ensure the issue has been resolved without loss to accuracy and performance.

In addition, NCGA will continue to work closely with John Deere, the American Farm Bureau Federation, the National Association of Wheat Growers and the American Soybean Association to ensure the GPS technology remains available to our farmers.

USDA Agricultural Research Service (ARS) scientists have found that some Pacific Northwest farmers can increase corn yields by using strip tillage and banding fertilizer instead of conventional tilling. Strip tillage and banding involves excavating a single row for planting about 6 to 12 inches wide and 6 to 8 inches deep with a knife-like shank that can also inject fertilizer directly below the seed.

The scientists found that using these practices increased corn grain yields on severely eroded soils st higher elevations by 12 percent the first year and 26 percent the second year. This translated into yield increases between 11 and 26 bushels per acre.

Read more from ARS here.

Photo courtesy of David Tarkalson, ARS.

The winner is Jeff Peterson of Port Byron, IL. He’s flanked by Rick Hofer, Iowa Territory Manager (left) and Travis Goedken, Minnesota Territory Manager. That’s a nice prize to go home with!

While I was at this event I spoke with Katie Beeler. She says Ag Leader Technology is very happy to participate in a Corn Strategies event. Looking ahead to harvest she says auto steer and yield monitoring will help corn growers. The company will be at a number of summer farm shows and I know I’ll see them again soon.

You can listen to my interview with Katie here: Katie Beeler Interview

Wyffels Hybrids Corn Strategies 2011 Iowa Photo Album

Attendance at the annual meeting of corn, soybean, wheat and sorghum growers shattered previous records. Total attendance was more than 4826, breaking the previous record at Nashville three years ago by almost 300. Total number of growers was over 1600, compared to the previous record of 1513 in 2009 in Grapevine. The number of media was down a bit, but still a pretty substantial 126. Next year, Classic is back in Nashville, maybe to set yet another record!

In a show of unity, the leadership of the National Corn Growers Association, the National Association of Wheat Growers, the American Soybean Association and the National Sorghum Producers issued a joint statement on the federal deficit and debt reduction following the conclusion of the Classic business sessions.

“We note that agriculture made a down payment in cutting spending when the Department of Agriculture directed $4 billion in savings under the Standard Reinsurance Agreement for federal crop insurance toward deficit reduction. We believe any further reduction in discretionary spending should recognize and reflect this contribution. We would also note that agriculture-related programs represent less than one-half of one percent of the federal budget.

“Looking forward, we believe any meaningful approach to deficit and debt reduction in the FY2012 budget must encompass all entitlement programs and all discretionary spending. We look forward to working with Congress and the Administration to develop a budget that successfully addresses the need for federal deficit and debt reduction balanced with the need of ensuring a successful agricultural economy.”

Special thanks to John Deere for helping to sponsor our coverage of the 2011 Commodity Classic!

2011 Commodity Classic Photo Album

AgWired coverage of the 2011 Commodity Classic

Field trials conducted from 2006 to 2010 tabulated information gathered by global positioning systems and variable rate technology, including the electrical conductivity-based Veris 3100 and EM38 sensors for on-the-go soil mapping, plus harvest yield mapping data.

This technology illustrates that nematicide applications can be applied sparingly in some cases while maintaining good nematode control and trimming chemical costs.

The grower cooperator field trials included six studies with the nematicide Telone II applied at pre-plant in cotton and corn in central and southwestern Arizona conducted by University of Arizona (UA) researchers Randy Norton, Tim Hatch, Mike McClure, and Pedro Andrade.

Norton, UA regional extension cotton specialist based in Safford, shared the findings during the 71^st annual Cotton Disease Council meeting at the 2011 Beltwide Cotton Conferences in Atlanta, Ga., in January.

Norton labeled the RKN as the No. 1 nematode species threat in Arizona. The microscopic roundworm damages crops by attacking the young tap and secondary roots which stimulates the production of galls. Galls interfere with the ability of the roots to absorb water and nutrients, and allow other disease-producing organisms to enter the plant.

Arizona hotspots for RKNs include the Coolidge, Casa Grande, Florence, and Buckeye areas in central Arizona and the Bonita area in the Sulphur Springs Valley in southeastern Arizona.

In cotton, the RKN is responsible for a 5 percent lint yield reduction on average across the Cotton Belt, Norton says. Five gallons is the standard Telone II application rate in Arizona to maintain cotton yields in RKN-infected fields.

Read on to learn more…

To learn more about how OptRx worked, I spent some time with Mike Olson, North American Sales Manager for Ag Leader, during the show. He said releasing this crop sensor was the next logical step for them because there is a huge demand in both North America as well as globally for nitrogen for wheat.

Applying the right amount of nitrogen at the right time is very important for wheat so you don’t have issues like lodging, and you get better crop stand. “So if we can monitor crop health as you go through the field and apply nitrogen based on it, we can use nitrogen more wisely across the field and give you a better overall stand,” explained Olson.

Last year, Ag Leader released OptRx crop sensor for corn. Olson said that in the past two years, the Midwest has seen very wet springs and crop variability has been very, very high. This has caused a lot of nitrogen leeching. Growers who used OptRx last year, on average, saw a $25 per acre improvement over not having the crop sensor and using a flat rate application.

Since real-time variable rate nitrogen applications in the field, such as OptRx are pretty new technologies, I asked Olson what the three most common questions were from growers, He said, “What’s the technology? What equipment do I need? and What are the benefits?” You can get detailed answers to these questions in the video below.

The 2011 season is fast approaching so now is the time to purchase your technology. Olson said that both the OptRx crop sensor for wheat and corn are now available and the has team members standing by to give growers the 411 on the technologies. In addition, his team members can help them get set up and ready to go so when the window of opportunity is available to apply nitrogen, they’re ready to go.

For more information on OptRx for wheat and corn, visit www.agleader.com.

Miss the show? Check it out in our Iowa Power Farming Show flickr photo album.

Precision Pays coverage of the Iowa Power Farming Show is sponsored by: .

The new technology was on demonstration during the show, and Mark Anderson, Territory Manager for Ag Leader talked to me about the product. It was a little cold and the concrete was a little hard to do any corn planting during the show, but I was still able to get a virtual tour of how the Advanced Seed Monitoring tool worked.

The technology was designed specifically for corn farmers to use on Ag Leader’s INTEGRA displays and when integrated with SeedCommand, is another precision ag technology that will help farmers increase yields and increase profits.

Anderson mentioned some additional features along with the ones mentioned above. These include:

• Virtual Seed Trench for a seed-by-seed view to assist in diagnosing problematic rows.

• Automatically determines and displays the rows operating at the lowest and highest levels for singulation and population.

• The new Advanced Seed Monitoring incorporates seed meter and placement details into SeedCommand’s row shutoff and planter-drive modules on one, easy to read and navigate screen.

Anderson said that growers were already really excited about the product at the show and once the word gets out, he expects high demand for the product. So, to ensure that all their growers get the update in time for planting, he encouraged them to order their Advanced Seed Monitoring tool as soon as possible. You can do just that by giving them a call at 515- 232-5363 or visiting their website at www.agleader.com.

And before you’re ready to apply nitrogen this growing season, check out their OptRx technology. Growers who used the technology last growing season, on average, improved their bushel per acre costs of $25.

Miss the show? Check it out in our Iowa Power Farming Show flickr photo album.

Precision Pays coverage of the Iowa Power Farming Show is sponsored by: .

Research agronomist at MU’s Greenley Research Center in northeast Missouri Kelly Nelson says that ag operations in the U.S. create 58 percent of the world’s nitrous oxide, a greenhouse gas that contributes 300 times more to global warming than carbon dioxide. His work is focusing on the placement and source of fertilizers to reduce that nitrous oxide number.

“The fertilizer placement for a no-till system would be, for dry fertilizers, would be broadcast applied over the soil surface. We thought with a strip-till system we can till a small area, usually about 12 inches wide, usually less than 30 percent of the field, and maintain good soil cover, and apply that fertilizer in a band right under the plant so it has easy access to the fertilizer.”

He says using an enhanced-efficiency polymer coated urea and non-coated urea, they were able to test in a clay pan soil, where there is very poor internal drainage and fertilizer loss can be substantial.

“We saw that over the entire growing season, we were emitting about 2.4 to 3.8 percent of the nitrogen applied as nitrous oxide.” Nelson says that while it doesn’t seem like a big number, it shows how much greenhouse gas can be emitted into the atmosphere. Plus, he says this system was able to increase yields. “We were seeing that our strip-till system was increasing yields by about 50 bushels to the acre (in corn), compared to our no-till system.” And it reduced greenhouse gas emissions by about 25 percent, compared to no-till systems.

Nelson admits that they didn’t compare the amount of emissions for running the extra equipment in the strip-till versus no-till operation, but that would be a comparison of CO2 emissions, and as stated earlier, much less impactful when you are considering greenhouse gases. Plus, the increased yields should help make up any differences by increasing the amount of carbon sequestration going on in the higher yielding strip-till operations.

He credits new, advanced precision agriculture equipment and practices for even making this kind of work possible.

“Getting the right product at the right time in the right place, that’s what we’re working toward. Precision ag is moving us in that direction.”

Listen to my interview with Kelly here: Kelly Nelson, MU research agronomist

Fertilizer production costs will be substantially higher in 2011 than they’ve been for the past couple of years. When you look at the numbers, remember that commodity prices also have increased significantly.

If you are a shrewd marketer, you have taken advantage of crop pricing opportunities that will help offset the higher production costs. You may still be able to find a few holiday bargains for pre-paid fertilizer, however, most of the good deals ended in November. Following these tips can help you achieve a profitable fertilizer program for 2011

10 Tips for Getting the Most from Your Fertilizer Investment

• Follow a good soil testing program to know macro and micronutrient levels.
• Use the most efficient methods to apply phosphorus (starter or strip-till application) and timing options/methods/sources for nitrogen.
• Take deep soil samples for residual nitrate to fine-tune N rates.
• Set realistic yield goals. Expected yield is the major factor in determining the nitrogen rate for corn. Use a proven five-year average corn yield plus 5% (to account for hybrid and management improvements).
• Credit N from previous crop residue or legume crops. Soil tests will not show legume or crop residue credits as the residue or nodules must break down during the growing season. Credit N for corn after soybean, sugar beet, alfalfa, and dry beans.
• Value and use manure sources properly. Manure is an excellent nutrient source for nitrogen, phosphorus, and micronutrients.
• Not all fertilizer recommendations are the same. UNL fertilizer recommendations may seem conservative compared to some commercial labs. UNL suggestions are based on research and on-farm verification. They are generally the most economical rates, even for high yield situations.
• Consider replicated strip trials to determine the effect of lower or higher rates on yield. Fine-tuning fertilizer use needs to be an on-going process.
• Comparison shop. Look at different products and do your “fertilizer arithmetic” to compare the actual cost per pound of nutrients.
• Work with a reputable dealer who can provide quality product, price assurances, timely delivery, and well-maintained equipment. Remember, service after the sale is also important.

Gary Hergert, Extension Soils Specialist
Panhandle REC, Scottsbluff

See more recommendations for surviving high input costs.

Sent to over 400,000 growers as a supplement to the November issue of Successful Farming magazine, the 28-page guide is a valuable resource for growers striving for next-generation yields, as well as a great sales tool for Mosaic’s retail customers.

The guide features new thinking on building a well-balanced fertility program and highlights the latest research on topics like uncovering the nutrient requirements of today’s new hybrids, real experiences of producers implementing innovative best management practices and facts on the latest advancements in fertilizer.

“It’s with a pioneering spirit and quest for better information that The Mosaic Company brings you the Balanced Crop Nutrition supplement to Successful Farming,” said Rick McLellan, Mosaic’s senior vice president of Commercial Operations. “Technology continues to evolve and promises higher levels of crop performance, but to maximize this potential, fertility strategies also must move forward. Fertilizer is the foundation on which all high-yield crop systems must be based.”

To view the guide and order additional copies visit: www.back-to-basics.net.

They listed:
- Raven Sling Shot system
- Connected Farm concept
- GSI Binspector
- Grain entrapment rescue tubes
- Votivo nematicide seed treatment
- SmartStax corn
- Agrisure Viptera trait
- Surveillance sunglasses
- Vertical till revolution
- Kixor herbicide technology

Read on to learn why.

We’ve shared with you in this forum on many occasions that increased regulations and legislation are headed your way. And in this case, some farmers and applicators might be asking for it. It is too early to be fall applying nitrogen. Environmental extremists are documenting, right now, everywhere they can find, individual cases of N being applied at inappropriate times. Is the rush to get field work done worth costing everybody in the industry fall applied nitrogen? That’s not an exaggeration and the outcome is nearer than you might choose to believe.

We’ve all been victims of “one bad apple spoiling the whole basket.” Years of responsible fertilizer application and nutrient management plans by thousands of farmers in Illinois will be undone if irresponsible behavior is undertaken and we turn a blind eye.

Take a lesson from what happened in the state of Florida. Legislation via litigation ended up costing farmers in that state after extreme environmental groups pushed their agendas through the courts. Illinois is next on their hit list. This means you. The loss of fall applied nitrogen will cost Illinois agriculture billions of dollars.

You may not be fully aware of how imminent this situation is. But take this as your notice. You will lose the opportunity to include fall applied N as a management tool in your nutrient plan if as a whole, we don’t do what’s right. We’ve talked the talk. Now it’s time to walk the walk.

Illinois farm organizations and the Illinois EPA have been in your corner, supporting your access to fall N. Not following best management practices for nitrogen undermines everyone’s credibility and will soon cost you this option.

The future of fall applied N in the state of Illinois depends on YOU. Do what’s right.

• The IL Fertilizer and Chemical Association recommends using nitrogen stabilizers for ALL fall applied N.
• Wait until after October 15th before even considering N application.
• Only apply N when the soil temps are in the low 50’s and the longterm forecast is for sustained cool weather.
• If you choose NOT to use an N stabilizer, only apply N when soil temps are below 50 degrees and will stay that way.

SuperU is a finished grade urea and when Agrotain makes the SuperU, they add the nitrogen stabilizer to chemically stabilize urea for its use in the field.

To learn more about Agrotain Plus and SuperU, I spoke with Martin Case. He told me, “We’ve seen a lot of nitrogen deficiency in the crops this year where we’ve run the nitrogen out early down low and the corn turned yellow early down low. Then we had a lot of excess water that drove the nitrogen out of the root zones, so the corn has suffered and died early.”

Case recommended that grower start thinking about their programs for next year and anticipate any problems that were seen this year and what they may expect next year for weather. Then, he said, apply either Agrotain Plus to your UAN or buy SuperU and apply it based on your agronomist’s recommendation on the best way to get the most return.

Case said the products work and he mentioned that they have been studied independently by the USDA (studies are now in their third year) and USDA is seeing a dramatic economic value, meaning more corn yield which equates to more profit for the farmers. In addition, they are seeing a reduction in the loss of nitrous oxide to the atmosphere.

You can learn more about Agrotain and SuperU, by listening to my interview with Martin Case here. USDA Confirms Agrotain and SuperU's Value

Farm Progress Photo Album

In addition, they use swath control, or the ability to turn individual rows on and off using GPS so that a farmer who is planting corn doesn’t overlap. This helps to eliminate yield loss that comes from over planting as well as saves farmers on their seed costs.

In a corn husk, pardon my pun, Precision Planting uses variable rate technology to help farmers understand how to pick the right population for the area they’re in. And this is important. “For every percentage improvement we can give someone for accuracy, from 95 percent of the seeds placed correctly to 97 percent of the seeds placed correctly, that equals a $10 per bushel yield advantage.”

You can listen to my interview with John Larkin here. John Larking Talks Precision Planting

Farm Progress Photo Album

But to keep the ag industry strong, the country must pass long-term energy policy that will support increased market access for ethanol. “It is vital that Congress and the EPA move forward and approve these needed long-term policy proposals,” Northey said. “It is important that we send a signal to the industry and investors that support structures that will remain in place and allow the industry to continue to advance and adopt new technologies including eventually cellulosic ethanol.”

The Green Jobs Waiver, or E15 waiver would do just this. It would help to open up the markets for more ethanol. But any decision on this front is still a ways a way. According to Tom Buis, the CEO of Growth Energy, the EPA and DOE will finish testing on 2007 and newer cars this month and 2004 and newer cars by the end of November. No one knows for sure how the EPA will rule, but there is widespread confidence that E15 will be approved.

Approving the extension of the ethanol tax credit is also important in sending the message to investors that this industry is here to stay.

Northey also stressed that success of the ethanol industry has allowed the success of other companies as well, many who are participating at this year’s Farm Progress Show. Therefore, Northey concluded, it is not only important for many states’ economies and the agricultural industry for ethanol to succeed, but it is ultimately important for all forms of alternative fuels.

You can listen to the Growth Energy press conference here. Growth Energy Press Conference During Farm Progress Show

Farm Progress Photo Album

Precision Pays coverage of the Farm Progress Show is sponsored by: .

Nitrogen has also become more expensive over the past couple of years so more effective nitrogen programs are of great value to them. Enter the OptRx Crop Sensor by Ag Leader. This is variable rate technology that not only applies nitrogen, but adjusts the rate of application on the go. The sensor is able to determine if the soil needs more or less nitrogen and on the fly, makes appropriate adjustments.

Jessica Reis, with Ag Leader, explained that being able to adjust nitrogen offers a multitude of benefits but one of the most important of them is the ability to use appropriate amounts of nitrogen on each area of the field will improve yield and that means improved profit.

Check out our Farm Progress Photo AlbumFarm Progress Photo Album.

Precision Pays coverage of the Farm Progress Show is sponsored by: .

During this week-long classroom and in-field event, hosted by Farm Journal field agronomists Ken Ferrie and Missy Bauer, participants gained hands-on information about such topics as planter impact on root growth and development, variable-rate population and nitrogen, the significance of water pH on herbicides, lime quality and application methods, and much more.

Ag Leader Technology was one of the sponsors of the event, and the company hosted a luncheon ‘Learning Session.’ “We talked about crop sensor technology from A to Z—from helping growers understand how the technology works to what farmers need to consider when adding the technology to their operation,” says Jessica Reis, Marketing Communications Specialist for Ag Leader.

“It was an excellent dialogue with growers, who helped remind us how cutting-edge this nitrogen sensor technology is from their perspective, which is different from those of us who deal with it daily,” Reis says. “We talked a lot about how growers can add sensors to gauge crop health during a postemergent herbicide application, as well as how the sensors, such as our OptRx Crop Sensor, can be incorporated into a nitrogen application program. It was a great learning session for us as well as the growers.”

Sponsors of the event also participated in a trade show area to answer any and all questions. “We had a lot of questions about planter section control, such as our SureStop Clutch and SureVac Shutoff, to help grower save seed costs,” Reis says. “Data questions, such as how to analyze years of collected data for improved management decisions, were very popular. We helped growers understand the benefits of our SMS Basic and Advanced software, and how it can work with data from many types and colors of equipment.”

For more information from this third annual event, visit www.farmjournalcorncollege.com. And check out RFD-TV on September 1 as Corn College TV will air 30-minute educational programs weekly.
Visit these links for more information.

Farm Journal Corn College http://www.agweb.com/farmjournal/farm_journal_corn_college/

OptRx Crop Sensor http://www.agleader.com/products/directcommand/optrx/

SMS Basic Software http://www.agleader.com/products/sms-basic/

I spoke with Greg Kneubuhler the other day, who is a certified crop consultant, agronomist and owner of G&K Concepts in Harlan, Ind. Greg has been a true pioneering consultant in the NE Indiana/NW Ohio area—starting growers down the precision farming/yield gathering path back in the late 1990s. Today, his clients’ business has evolved into intensive precision management that includes precise zone management and applying the right variable-rates—all driven by on-farm research on every farm. To help accomplish such research, Greg works on numerous projects in cooperation with Joe Nester of Nester Ag, Bryan, Ohio.

“We’ve always used a zone management philosophy in fields—which started with soil types. Then we added yield and soil test data layers to begin developing variable-rate applications of nitrogen, lime, and even seed by management zones. But an accurate yield map is critical,” he says.

Kneubuhler, who has used various software over the years, now relies on SMS Advanced software from Ag Leader. Its data layering and management zone capabilities, along with its smooth data transfer between the SMS Mobile software on a handheld computer.

“I’m a daily SMS Advanced user, and I have yet to find a software that is better. If there was one, I’d be using it. I can manage all clients zones, all research trials, and easily sync data to SMS Mobile so I can use it to walk corn fields to exact locations for stalk nitrate tests or to check on potential issues that show up on aerial imagery,” he says.

These valuable information tools help Kneubuhler take all the geo-referenced data his clients collect, which he layers into his ‘sandwich.’ “As an agronomist, we use this tool to build a sandwich of every type of information we can gather—and that really helps us make very good management decisions today, and down the road.”

For more information, visit

SMS Advanced Software http://www.agleader.com/products/sms-advanced/

SMS Mobile http://www.agleader.com/products/sms-mobile/

Ag Leader Precision Point blog – “Scouting the Crop” http://www.agleader.com/2010/05/25/scouting-the-crop/

G&K Concepts http://gkconcepts.com/Contact-Us.html

Nester Ag http://www.nesterag.com/

Certified Crop Advisors https://www.certifiedcropadviser.org/

I spoke with Cory De Jong, Certified Crop Advisor and GIS/Agronomy Sales at Sully Cooperative Exchange in Sully, Ia. today. They tested the Ag Leader OptRx crop sensor system last year during all the heavy rains. “We strictly used the sensors on a sprayer for mapping purposes, as we weren’t set up yet to apply nitrogen. And we saw a lot of (plant health) variability in fields, covering several thousand acres that we mapped,” he says.

“Last year, sidedressing N definitely paid due to all the spring rain we had here in central Iowa. On average, growers gained at least 15 bushels an acre by sidedressing. And if they applied variable-rate, they could have gained 30 bushels,” De Jong says. “We saw 50 bushel per acre differences within fields with the OptRx. So this year we’ve got a bar ready to custom apply with OptRx to apply sidedress N. And we have a bar with OptRx that customers can rent, too.”

De Jong says there is a lot of hog and chicken manure used by customers in his territory, and they are interested in this sensor technology. “For example, one grower who has a lot of hog buildings wanted to know how much N he was getting from his manure. We used the sensors to shoot the plant leaves and saved him input dollars. And in some areas the N gets reallocated to areas of the field where N is needed most,” he adds.

He feels this sensor technology will gain more and more users, once growers see the benefits of variable-rate application. “As interest picks up, we’ll add sensors to a sprayer that will just be dedicated to sidedressing. We may be losing some N business due to manure, but we’re gaining business by helping customers apply N only where the sensors detect it is needed—as well as how much the plants need.”

For more information, visit

OptRx Crop Sensor http://www.agleader.com/products/directcommand/optrx/

Ag Leader Products http://www.agleader.com/products/

Sully Cooperative Exchange – Agronomy Dept. http://www.scecoop.com/index.cfm?show=10&mid=7

Certified Crop Advisors https://www.certifiedcropadviser.org/

“At the peak of the season we’ll test 20,000 samples each day,” says Kennard Pohlman of Omaha’s Midwest Labs. “We always test the organic matter in the sample and the pH. You want to verify the nitrogen carryover and the level of phosphorus, potassium, sulfur and zinc. I can almost tell you, by looking at the soil sample results, what the farmer has been doing in the past and how good the farm is. That’s how much information is available in a soil sample.”

Grid sampling is Oldham’s specialty and he said a growing number of producers, especially those growing corn, are realizing the benefit of managing input costs and improving yields by testing their soil quality in single or multiple-acre grids.

“Sometimes producers believe the cost of sampling is greater than the cost savings or increased yield they see,” Oldham said. “Actually, the investment in the sampling analysis generally isn’t even recognizable in contrast to the combination of savings on inputs and the increased yield. If you’re analyzing just a few samples from your field, you obtain information about the averages in soil quality for that field. Getting samples from every 2.5 acres or less really allows you to combine that information with a variable rate prescription that allows for the best management of inputs and maximizes yield.”

For more details, read the story.

Many agronomists and producers conduct experiments that test the impact of rates of fertilizer, population, or pesticide on yield. To analyze this data we need to conduct a yield response analysis. Agronomists and or producers that understand yield response and how to use yield response to determine the point of optimum economic return will be able to make better management decisions. The point of optimum economic return is determined by:
1. Conducting a yield response experiment
2. Converting the yield response data to a functional relationship,
outputcorn yield = f(input the plant population)
3. Using calculus to determine where the change in the value of the input equals the change in the value of the output.
In site-specific farming, scientists have found that yield response relationships may change spatially and temporally.

To learn more, read the paper “Using Yield Response Analysis to Calculate an Optimum Plant Population“.

The Furrow

Broadwater, Neb., grower Frank Lussetto says zone management helped him accomplish three broad goals of being agronomically sound, economically smart and environmentally safe. He uses zone maps for phosphorous, nitrogen and seeding rates, grouping six to eight soil types in a field into three to five zones. And he used elevation and electrical conductivity as the primary drivers in zone development.

The story also featured Enterprise, Kan., farmer Larry Hottman and his use of zones, derived more prominently from yield maps collected since 1998. He too used electrical conductivity readings to map soil properties along with grid soil sampling.

University of Nebraska agronomist Richard Ferguson says they are seeing a $26 per acre benefit using site-specific nitrogen application and zone management.

For more details, read the story.

Hopefully you pulled out that owner’s manual, or enlisted your local dealer’s help, several weeks ahead of pulling into the first field with a planter full of seed. “The equipment only works as well as the set-up, so running the calibration software on your monitors should be an annual event,” says Nick Ohrtman, Technical Support Supervisor for Ag Leader Technology.

Since there’s no real standard procedure when calibrating for variable-rate technology, it is critical that you follow the guidelines in the owner’s manual of both the piece of equipment and the monitor that is driving it. “Our display monitors, like the Insight or INTEGRA, have a calibration wizard that walks you through seed meter calibration, allowing you to count the actual seed that drops per revolution, which is critical for variable-rate seeding” he says.

“If your variable-rate monitor is set to plant 34,000 seeds and the population monitor says you’re only seeding 30,000, then that’s a sign that the calibration was done inaccurately. If this happens with our system, when both monitors are running through our display, an alarm sounds when the populations don’t match up,” Ohrtman adds.

Granted, most calibration settings made are saved by crop, but it is still wise to recalibrate every year for each crop. “Once you’ve calibrated for corn and soybeans, then every field will use the same calibration. And the calibration doesn’t change when you’re switching plant populations,” he adds.

For growers using planter section or row shut-off technology, it’s advised to make sure your settings are correct each year. “With our AutoSwath system, there are three different settings available, so it’s wise to check the owner’s manual every year, as well as do a dig check in the soil on the first round to make sure the row shut-offs are working correctly.” Nick talks about tips for using AutoSwath in his blog post here.
For more information:
Calibrating Equipment for Variable-Rate Application

Variable Rate Equipment – Technology for Weed Control

Gear Up For VRT (Farm Journal, March 2009)

“I like knowing exactly to a row when hybrids and varieties start and stop—especially when you have to switch near the end of a field—so when you analyze yield results you know why the yields went up or down,” Cannon says. “That practice led to conducting strip trials across whole fields. And I often plug in all my hybrid/variety numbers into the monitor before I head to the field so changing numbers and fields is simple.”

And Will does a lot more than just track yields. “Last year we conducted alternate strips across a field to compare no-till and strip-till soybeans. We set up and mapped alternate passes of strip-till in the fall, came back in the spring, locked in with auto-steer to fertilize and plant into the strips, then no-till plant in-between those passes,” he says.

Cannon likes having all that mapped in the spring, because come harvest he doesn’t have to worry about where the combine is in the field. “I can just harvest and not worry about anything else, because I trust the monitor and data gathering.” Then during post-harvest into winter he crunches data. “I really like the capabilities of the SMS software. There are great tools I can use to select which passes across the field I want to analyze and compare. And I learned a lot about what tillage systems work best in specific fields.”

Another data layer is tracking his refuge management acres. I see this as becoming more and more important, as different hybrids change percentage of refuge acres, plus if I get audited I can direct them exactly to where they need to take tissue samples. And exact location is a big help if I need to apply insecticides on those acres,” he says.

Cannon continues to be impressed with the flexibility built into today’s software and data recording capabilities. “You have a lot of features to document things, so you don’t have to remember it all. And as more growers learn the capabilities, they figure out new ways to use it—because what appeals to one grower may be the opposite of what another guy wants. And the history of data that you build up is invaluable in the future.”

1. Corn Quality Issues:
- Frost-damaged corn often stops at 17-18% moisture (stopped at 20-22% in 2008 in Iowa). Expect low test weights due to immature kernel.
- Pay attention to stalk health, as you may want to harvest wetter corn first if lodged.
- Expect drydown costs about 5 cents per point of moisture removed. Remove 8 points down to 15% will cost about 40 cents per bushel plus weight shrink.
- Corn test weights below 54 lbs. after drying should not be stored into warm weather, and should be dried to less than 15% for storage of any duration.
- Scout for field molds problems, because they can create toxins and feed value concerns, possibly creating discounts.

2. Field Mold Issues:
- Cool, wet harvest conditions favor ear rot and stalk rot fungi. Harvest problem fields first to reduce ear loss due to ear rot and increased mycotoxin levels.
- Adjust harvest equipment to minimize kernel damage.
- Dry and cool the grain as quickly as possible to reduce further mold growth and toxin production.
- Expect end users to increase their level of grain quality grading.
- Test all questionable grain before feeding to livestock.

3. Storage Issues:
- The extra costs in additional handling and drying logistics will likely pay off in terms of avoiding spoiling losses later on.
- Check combine settings between fields for fines and cracked kernels because they accelerate spoilage.
- Fungi grows very fast in corn above 20% moisture, so get wet corn into aerated storage immediately–don’t let sit in truck or wagon overnight.
- Monitor wet corn weekly in storage. Airflow must be good, as problems can start to show up in February and March as temperatures rise.
- Options when wet corn exceeds drying capacity: 1. Dry to 17-18% then cool in storage bin; it’ll end up at 16% and good aeration can get it down to the needed 14% for midsummer storage. 2. Dry to 20%, cool in bin, hold wet corn for spring but not summer. 3. Dry in two passes–first down to 17-19% then rest of drying after harvest is over. (This requires more handling and logistics, but could be profitable if the market carry increases to encourage storage.)
- Decide which corn and bins will be kept into summer (your best corn of highest test weight that was harvested below 20% moisture).

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National Corn Growers Association chairman Bob Dickey is also chairman of CleanFlex Power Systems, which is so new they haven’t built a website yet, but what they have done is developed a method to efficiently use ethanol in diesel engines.

Dickey started the idea a year ago when he bought a new John Deere 150-hp four-cylinder turbo diesel irrigation system engine and retrofitted it to use an ethanol and diesel blend. “It worked so well that we applied for a grant at the University of Nebraska and we’re currently doing research there to bring credibility to what we’re doing,” Dickey says.

The company has developed a new hydrated-ethanol fuel called EM60 (a mixture of 60% ethanol and 40% water) to combine with diesel fuel to power diesel engines. “Just like oil and water don’t mix, ethanol and diesel don’t mix,” Dickey said. So, they run two lines into the diesel engine. “The only time the ethanol, water and diesel are together is at the point of combustion and it really works well. The engine runs cooler, it runs more efficient and the emissions are reduced.”

CleanFlex president Ron Preston says they are talking with agricultural equipment manufacturers, railroads, and even bus companies about the idea because the EM60 fuel has the potential to help meet Tier 4 emission standards that become effective in 2011. “There are 60 million diesel engines in the United States,” Preston says. “We’ve been working with EPA and going through the proper steps to make ethanol a solution that will help them meet emissions requirements.”

Listen to a Precision Pays Podcast with Bob Dickey and Ron Preston about CleanFlex by clicking on the player below – or subscribe to our monthly podcast, sponsored by AgLeader Technology, by following this link or the sidebar link.

Ag Leader InSight monitor shows Trimble's AgGPS Autopilot screen

“If you don’t know where you’re at, it’s hard to tell where you’re going,” Nathan says, with regard to their lack of baseline yield data. So last fall, he and his dad Randy talked about needs with their local equipment dealer. After checking out Ag Leader and John Deere, they opted for the Ag Leader InSight system to start measuring and mapping yields last fall.

“We chose the InSight for several reasons. My dad’s not a big computer guy, so we really liked how easy it is to use, yet it can handle the complex future jobs I want to try such as variable rate seeding and fertilizer application. And, even though we run mostly Deere equipment, we went with Ag Leader due to its versatility to work easily in different equipment brands, just in case we switch combine or tractors,” Kramer says

Since half of their 2,200 combined acres (they farm their own ground and share equipment) are dryland, Nathan believes he can find added efficiency in varying his seeding and fertilizer rates on fields where soils and topography are most variable. “We feel that perhaps variable-rate seeding will pay off faster in dryland than on our irrigated acres. And we hope for a similar payoff with fertilizer. We may not use less of either one, but we’ll hopefully increase efficiency across the field.”

The Kramer’s next step into precision farming is drilling wheat next week using their newly purchased auto steer with RTK accuracy. “We’re looking forward to planting more acres per day due to less fatigue,” Nathan says.

Once fall harvest is in the books, and yields on maps, Nathan plans to spend some time this winter talking to neighbors experienced in precision farming, and working with a consultant to develop some prescription maps and test protocols for next spring. “We expect a lot of trial and error with different practices we want to try—everything from planting populations, fertilizer rates, hybrids and irrigation rates. It’s difficult to keep up with all this technology, that’s why it’s important to have good local service and expertise,” he adds.

Here at the Farm Progress Show, Gen. Wesley Clark, Growth Energy, announced a new initiative. The organization is calling for country of origin labeling for fuel. I would call that the “COOL for fuel” initiative! Hey, we do it with food, why not fuel?

General Wesley Clark, Co-Chairman of Growth Energy, today called on the United States Congress and the White House to take action to dramatically enhance the market transparency of the nation’s fuel supply by requiring a national standard of country of origin labeling (COOL) for fuel.

Clark also unveiled Growth Energy’s labelmyfuel.com, which showcases the costs of American dependence on foreign oil, and serves to rally grassroots support for Congressional action on COOL for fuel legislation.

So what do you think about this initiative? Good idea?

You can listen to the press conference here: fps-09-growth-press.mp3

Farm Progress Show Photo Album

Precision Pays coverage of the Farm Progress Show is sponsored by: .

The new 4630 Sprayer is ideal for cotton farmers who want a low-cost, comfortable, and productive machine that’s simple to operate. It’s also ideal for corn, soybean, or small-grain producers that want a productive yet comfortable machine with advanced options. The 4630 Sprayer replaces John Deere’s discontinued 6700 Sprayer.

For more details you can visit with your local John Deere dealer, or go online and visit the company’s Web site at www.JohnDeere.com.

It was designed to help educate policy-makers in Washington D.C.

Check it out, and pass it on!