Precision Pays

At the recent Holdrege Water Conference in Nebraska, several speakers talked about how precision technology is not only conserving water but saving growers money as well, according to this Nebraska TV report.

It really is a big money-saver,” said UNL Extension Educator Chuck Burr. “Several years ago, we had some irrigators figure out how much it costs them to make a circle, or put an inch of water on 130 acres. That can range from $600 to $1200 every time they apply an inch of water to that field. So if they can reduce a couple applications, you’re talking a couple thousand dollars for every pivot.”

The cost of pumping goes down, and so do labor and gas costs.

“With the new technology, [farmers] can sit at their computers and make sure the pivot is still
working,” Burr said. “If there is a problem, then they can drive specifically to that pivot.”

The experts say, irrigation technology helps more crops grow better. “Let’s say I have a field that has two different types of soil,” said Burr, “those soil types may require more different amount of water applied during the irrigation season.”

“We’re able to vary the speed that they run,” added Thorburn, “so that we can adjust them for different soil types. Sandy soils need more water than heavier soils.”

More efficient use of land and water means a brighter tomorrow. “Apply water just when it’s needed,” Thorburn said, “the better we are able to conserve that resource for the future.”

Click on the camera icon at this link to view the video.

Learn more about how AGCO’s AgCommand telemetry product can help you track, monitor and management all machinery in the field. Watch this video posted recently by Farm Industry News.

Steve Tupa of AGCO talks about an advanced version of AGCO’s recently introduced telemetry product called AgCommand. This product provides 25 different messages from fuel use to engine load which can be sent to home computer for observation. It was introduced at Ag Connect Expo, held recently in Atlanta, GA.

Telemetry systems like AgCommand allow navigation, prescription application, location and other data to be transferred easily to and from farm machinery. These systems will grow in importance as farmers seek ways to improve efficiencies on high-priced equipment.

If you irrigate and have not considered wireless sensors, the time is now to save money and improve yields.

The University of Missouri will sponsor three free breakfast workshops on wireless soil-moisture monitoring for timing irrigation. The workshops will feature representatives from six leading manufacturers of wireless sensors.

The workshops will take place Jan. 18 in Kennett, Jan. 19 in Sikeston and Jan. 20 in Columbia.

“The price of wireless technology has decreased so much in recent years that the annual cost for complete wireless systems can be as low as three to six dollars per acre,” said Joe Henggeler of MU’s Commercial Agriculture Program and workshop coordinator. “It won’t take too much extra cotton, corn or soybeans to pay for that investment.”

MU specialists and others will provide information on types of sensors, how far they can transmit signals and their usefulness to farmers. Company representatives will briefly explain their products.
Use of wireless sensors by 500 farmers in Nebraska has shown an average pump savings of $25 per acre for corn and $19 per acre for soybeans. Missouri survey results show that irrigators who use sensors have yields that are much higher than irrigators who do not use the wireless technology, Henggeler said.

Computer workstations linked to Google Earth will be available for use by farmers and company representatives. Farmers will be able to zoom to aerial views of their farms to see where to place sensors, measure the distances involved and observe if there are obstructions that may block signals.

The companies to be represented at the workshops are Campbell Scientific, Decagon Devices, Irrometer Company, John Deere Water, Onset Computer Corporation and Smartfield. Smartfield manufactures an infrared canopy temperature sensor that can determine when a crop needs to be watered.

Data is gathered 24/7 on the crop’s moisture conditions and is displayed on the computer as graphs. Almost all of the products can be set up to text-message an irrigator when a crop needs water.
Henggeler said he is pleased with the companies that will be represented at the workshops and with the personnel they will be sending. “Companies are not just sending regular sales staff but their vice presidents, product managers and other higher-echelon staff. They are eager to meet Midwestern irrigators because they feel they have products that will help them and they want to start partnerships here.”

Workshops are free of charge, but attendees are asked to preregister at http://agebb.missouri.edu/irrigate/bhconf/2011/prereg.htm.
Workshops begin 7 a.m. with a hot breakfast and conclude at 10 a.m. Dealers will be available later in the day to make site visits. Special workshop discounts will be awarded to attendees.

Dates and locations of the workshops:
-Tuesday, Jan. 18: American Legion Building, Kennett, Mo.
-Wednesday, Jan. 19: Clinton Building, Sikeston, Mo.
-Thursday, Jan. 20: MU Bradford Farm, Columbia, Mo.

For more information, see http://agebb.missouri.edu/irrigate/bhconf/2011/agenda.htm, or contact Joe Henggeler at 573- 225-7986 or henggelerj@missouri.edu.

This past week, I caught up with Matt Darr, Iowa State University ag engineer and precision farming guru, to chat with him about this past year in precision agriculture.

“We’ve said for a few years now that ‘accuracy is addictive.’ Well farmers are proving that as this has been a year driven by higher precision—a move to more RTK accuracy.”

The big deal. Darr cited the widespread nature of expanding RTK networks, both public and privately owned. “These networks are pushing us towards RTK becoming a standard commodity, which will help drive down the costs and give more growers the potential to achieve high-end accuracy. And that is a big deal.”

The CORS network has had a strong run over the past three years. Indiana is now online as the most recent, along with CORS networks in Iowa, Ohio, Michigan, Wisconsin, Minnesota and Missouri. “I see this growth slowing down, but we’ll continue to see greater stabilization and improvement in the signals,” Darr says.

In the private sector, we’re seeing greater expansion from Trimble’s VRS network and from John Deere’s StarFire 450 MHz radio system, as well as other smaller companies building systems across the Midwest.

Crop sensing. Another big push is on to figure out how to use active crop sensing to provide financial benefit. “With the addition of Ag Leader’s OptRx system, along with the Greenseeker from Trimble and CropSpec from Topcon, growers have the potential to unlock another area of profitability. It’s not as simple as auto guidance, and it may not work for everyone,” Darr says.

This technology offers a natural fit in wheat, since growers are used to topdressing in the spring. “Anytime you can automate N applications, you’re looking at both economic and environmental benefits. A reduction in the over-application of N is a big deal,” Darr says.

“The challenge for Midwest corn growers is that not every producer uses sidedressed N when corn is 12 to 18 inches tall, which is where this technology needs to be used. So you’re asking growers to change production practices as well as adopt new technology, so these challenges will slow adoption. But it offers huge potential,” he adds.

The future. “If you look back 4 or 5 years, and think about the automation technology that has come out—from auto swath to auto steer—all the easy things, relatively speaking, have been automated. Future automation gets tougher. We now need to circle back to data and press that information into greater knowledge. That’s what we’re after. We must gain knowledge from all this data to improve our operations,” he says.

GPS World offers a look at their top five events in GPS/GNSS for 2010, so check it out, too. http://www.gpsworld.com/survey/top-5-events-gpsgnss-2010-a-year-end-review-10854

Visit these links for more information.

CORS Network
http://www.ngs.noaa.gov/CORS/GoogleMap/CORS.shtml

Learn How CORS Network Can Fit Precision Farming
http://precisionpays.com/2010/01/learn-how-cors-network-can-fit-precision-farming/

Lessons in Differential Correction
http://www.agleader.com/2010/07/02/lessons-in-precision-ag-differential-correction-part-2/

RTK Network Options
http://farmindustrynews.com/precision-guidance/rtk-network-options

Ag Leader dealer locator
http://www.agleader.com/dealer-search/

You know how sometimes things happen in farm fields that are either out of your control, or perhaps something known as operator error. Well, some of those oops provide valuable learning experiences, don’t they?!

Such was the case with central Nebraska farmer Kurt Kroeger. Now Kroeger is a fairly advanced precision ag aficionado, playing with many things on his 1,250 acres. He’s a big fan of Ag Leader because the tools work well with all colors of equipment that he owns. And he’s become a whiz at SMS Advanced software to write his own variable-rate (VR) seeding and fertility prescription maps.

Another technology that has intrigued him since the late 1990s is the nitrogen crop sensor. “I followed the GreenSeeker sensor since it came out. Then I watched the Holland sensor become Ag Leader’s OptRx technology—and became one of the first to buy them.”

So, this past spring he mapped out a good test in a couple fields under pivots. “In one section of the corn field I applied a high rate (44 lbs./acre) of 32 percent nitrogen plus thiazole as a high yield check. In the second section I applied 32 percent based on the OptRx sensor, and in the third section I applied the nitrogen according to my fertilizer supplier’s best VR map based on soil type and fertility,” Kroeger says.

Then, that unplanned ‘fluke test’ happened, as he calls it. “The coolest thing in the world happened. When the corn was a foot tall, my mini-corner pivot got stuck all night and watered one spot heavily. As you can imagine, in another couple weeks when I applied the fertilizer, I had a nice and visible section shaped like a Nike swoosh mark in the field where all the nitrogen had leached away,” he says.

The OptRx sensors recognized the deficient plants in his ‘swoosh’ area and applied 50 to 56 gal., which was quite a bit higher than the whole field average of 34 gal. And compared to the 36 gal. on the retailer VR section, the OptRx not only saved 2 gal. it produced more yield too. These results not only sold Kroeger on the OptRx technology, but it changed his whole point of view on fertility in his sandier soils.

“The OptRx produced more uniform and higher yields, based on a philosophy of feeding all plants that need more fertility, which is different then the soil map VR philosophy that feeds the good areas and starves the poor areas of a field. It makes the whole field more uniform. I want every acre to pay for itself.”

Needless to say, Kroeger is sold on using the OptRx on all his corn next year. “If I had achieved the same results across my whole farm as I did in the plots, the system would have paid for itself this year alone,” he adds.

His next learning challenge…figuring out a way to use it on his sprayer to apply N using drop nozzles.

Visit these links for more information.

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

Blog posts on OptRx technology
http://www.agleader.com/category/optrx/

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

Ag Leader dealer locator
http://www.agleader.com/dealer-search/

A new publication for cotton growers offer insight and details into sensor-based variable-rate application and equipment, written by Oklahoma State University Ag Engineer Randy Taylor and Auburn University Precision Ag Extension Specialist John Fulton, funded by Cotton Incorporated.

There are great opportunities for this technology in cotton production for varying the application of plant growth regulators, harvest aids, and nitrogen. However, the users must understand the limitations of their equipment and the sensors being used in order to maximize the benefits.

Users should understand the agronomy behind prescriptions and be comfortable with the recommendations. Familiarity with these prescriptions can allow users to fine tune them for their environment or to develop their own prescription algorithms. They should also understand their equipment and know how to tune their controller for optimum response. As with all new technologies, users should seek advice from experts and those who are already implementing sensor–based variable rate application.

Learn more here.

And check out the Oklahoma State University Precision Ag Technology webpages.

A European Space Agency (ESA) project , TalkingFields, aims to takes satellite observations of fields and provide actionable advice to farmers throughout the growing season.

The TalkingFields initiative is now showing how to combine satellite observation with satellite navigation to benefit European farmers.
Sustainable food production and food security are critical challenges. TalkingFields will help by using precision farming methods to produce crops more efficiently. For instance, by optimising farmers’ use of fertiliser and giving early warning of plant disease risks, both costs and environmental impacts can be reduced.

“There are existing services variously employing Earth observation data, satellite navigation, farm management software and crop growth models, but TalkingFields is the first to combine them all,” said ESA’s Tony Sephton.

“We’re setting up an end-to-end service that is simple to use and sufficiently cost-effective to be self-sustaining.”

How does it work? The farmer requests the service for an area defined using satnav. Satellites gather information on the land’s potential – observations over several years can reveal variations in crop growth through soil changes – as well as current crop status.

These results are combined with information from field sensors such as weather conditions and soil moisture. The farmer adds in his own knowledge, and in return receives detailed satnav instructions on where and how much fertiliser to spray, for example.

A variety of satellites can be employed, although priority will be given to free data sources such as Landsat and ESA’s forthcoming Sentinel-2 satellites, due for launch in 2012.

“Ideally, we might have weekly satellite acquisitions, but cloud cover makes that unfeasible,” explained Dr Sephton.

“Instead, we need only two to four satellite images per growing season, which are fed into a sophisticated crop growth model.

“With TalkingFields the emphasis is on service: we’re not giving raw satellite data straight to farmers. Instead, we advise them directly on actions to be taken throughout the growing season.”

Read more

Fascinating video of how one Sonoma County, California vineyard, Jordan Winery, is finding the best grape characteristics in various field locations, digging soil pits and analyzing soil attributes and characteristics in order to bring that location’s success to the whole field. Talk about precision agriculture!

Take a look.

And here’s a blog post about the soil mapping study.

As the nights begin to cool, we know harvest is just around the corner. But before your mind gets totally wrapped around the culmination event of your hard work, take a break to visit and learn at one of the best outdoor farm shows, the Farm Progress Show, Aug. 31 through Sept. 2 near the central Iowa community of Boone.

If you’re going to the show, Ag Leader Technology has a special free t-shirt offer with a chance to win an EDGE display. Before you go, just visit the Ag Leader Facebook page and click on the invite under the tab ‘EDGE Giveaway.’ Then fill out the survey and bring it to the Ag Leader booth (Lot 517).

While at the booth, check out the live demonstration of the OptRx Crop Sensor. A Hagie sprayer, complete with the OptRx sensors, INTEGRA display and ParaDyme steering system, will be gathering crop condition data on live corn plants.

Also check out the new SMS Mobile PC software that will be available this fall for PC-based devices such as laptops, netbooks and tablets that run Windows XP, Vista or Windows 7.

And stop inside the tent to learn more about all the products from Ag Leader—from displays and guidance to planter/sprayer controls and software that handles all the data. Product experts will be on hand to help you learn what can best fit your operation.

Visit these links for more information.

Farm Progress Show Website http://www.farmprogressshow.com/

Ag Leader Precision Point Blog: Calling Farm Progress Show Attendees!
http://www.agleader.com/2010/08/23/calling-farm-progress-show-attendees/

Ag Leader Facebook page http://www.facebook.com/AgLeader?v=app_4949752878

Survey for Free t-shirt and EDGE drawing http://www.agleader.com/mirror/FB-EDGE-Survey.pdf

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

Fall Release of SMS Mobile Software http://www.agleader.com/2010/07/19/ag-leader-announces-fall-release-of-sms-mobile-pc/

German company RapidEye, the only geospatial solutions provider to own and operate a constellation of five identical Earth Observation satellites, announced today that over a period of just three months, 95% of the contiguous United States has been imaged. Almost 80% of this imagery was captured by the RapidEye satellites with less than ten percent cloud cover.

The campaign, which began May 1 and was completed on July 31, produced an abundance of imagery with many areas covered multiple times. Not only the United States was covered; 97% of Mexico was collected and almost 60% of Canada. Many areas were imaged more than once over this three month span and totaled 17 Million square kilometers of North America. All of this imagery is currently available for purchase in the RapidEye Library.

The company also has released a success story with the French precision farming company S2Bvisio about how RapidEye has delivered nitrogen fertilization maps for canola and wheat fields for the customer. You will find details about this project at http://www.rapideye.de/upload/documents/References/Customer_Reference_S2B_08_06_2009_ENG.pdf.

RapidEye images the Earth in unparalleled quantities and will continue to make its satellite imagery available through its Library, which can be searched either through a local distributor or directly through its Customer Service department. To find a distributor visit the RapidEye website at www.rapideye.de/distributors. Additionally, a selection of RapidEye products can be searched for, purchased and immediately downloaded through the RapidEye Geodata Kiosk at www.geodatakiosk.com.

Despite the heavy rains at times followed by high heat and humidity, around 800 growers, retailers and crop consultants came to Farm Journal test plots near Bloomington, Ill., to gain in-depth knowledge from experts at the recent Farm Journal Corn College.

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/

Producers came to learn at the recent Precision Ag Expo field days held recently in North Dakota. Numerous questions, according to a story in Farm & Ranch Guide, aimed at gathering facts about zone maps, satellite imagery and variable rate precision farming.

Kelly Sharpe, of GK Technology, Inc., in Halstad, Minn., said his company creates variable rate mapping, taking an image from a field and creating zones based off of this input image.

Zones are soil sampled and fertilizing and seeding maps are created. The producer receives a prescription that he can input into his GPS system to apply fertilizer and seed at the correct rates while traveling across the field.

“Economics has forced us to make more money off the same acres,” Sharpe said. “There’s a lot of variability in every field caused by topography and soil types. Maps can show you where there might be more leaching of nitrogen or different soil types requiring different treatments.”

“You could put 30 pounds of nitrogen on the top of your hills and 90 pounds on the bottom of your valleys and it might not be accurate,” he said. Zone mapping is the solution to putting on the right amounts, and it can be done “right from the cab,” Sharpe said.

Check out this piece to learn more about the benefits of satellite imagery and variable rate manure application.

UC Davis has prepared a great all-day workshop on Site-Specific Management to help increase widespread adoption of this valuable tool. It will be held July 14 in the UC Davis conference center (the day before Weed Day). Here’s a look at the program:

Workshop Goal: Present and discuss SSM concepts and applied research in order to provide the audience with a comprehensive understanding of how to identify and manage within-field variability to improve crop management.

Target Audience: Soils and crop management professionals, including UCCE Farm Advisors and Specialists, Pest Control Advisors, Certified Crop Advisers, Growers and others having an interest in improving their knowledge of SSM techniques.

Session I (8:30 AM to Noon) - Theory of SSM: Overview of concepts and techniques used to identify and manage within-field variability, Jose P. Molin, Biosystems Engineering, University of Sao Paulo, Brazil. Integrating geospatial technology with agronomic practices, GPS/GIS overview, methods for detecting soil and crop variability, use of sensors and yield monitors, creation of maps and variable rate input recommendations.

Noon to 1:00 PM – Lunch break

Session II (1:00 to 5:00 PM) - Applied research findings and examples illustrating the practical benefits of this technology

• Use of Precision Agriculture in the West - Rob Mikkelsen, Director, Western North America IPNI

• Site-specific methods for reclaiming salt-affected soil using electrical conductivity; and Use of Remote sensing on cotton fields for irrigation management, planning defoliation and its relationship with cotton growth and yield. Richard E. Plant, Department of Plant Sciences, UC Davis

• Site-specific nutrient management in California orchards – identifying almond yield and fertility variability and its implication on fertility management. Patrick Brown, Department of Plant Sciences, UC Davis

3:00 to 3:15 PM – Break

• Site-specific herbicide applications based on weed maps provide effective control. Tom Lanini, Department of Plant Sciences, UC Davis

• Site-specific management at Bowles Farming Company – Cannon Michael, Vice President Bowles Farming Company

• Knowledge Acquired, Intelligence Applied: Tomorrow’s Technology for Today’s Crops – Jason Ellsworth, Regional Technology Specialist, Wilbur-Ellis Company

5:00 PM – Adjourn

Please contact Andre Biscaro for details: asbiscaro@ucdavis.edu  (661) 974-8825

Click here to register: http://ucanr.org/sites/paica/Registration/

Click here for flier: http://ucanr.org/sites/paica/files/13632.pdf

ARS researchers have developed a way to make more precise agricultural maps of fields from data generated by LIDAR (light detection and ranging) sensors to help farmers target more of their resources to the highest-yielding parts of their fields. Graphic courtesy of James M. McKinion, ARS.

Using an airplane with LIDAR (light detection and ranging) sensors is helping USDA-ARS researchers build better management zone maps that can accurately predict yields based on topography.

With the maps fed into computerized, variable-rate fertilizer applicators, precision farmers can divert more of their costly fertilizer to the highest-yielding zones and the least to the lowest-yielding zones. They can also use the zone maps to make other decisions, such as planting more drought-tolerant varieties in low-yield zones, or sowing less seed.

Five years of comparisons between these maps and actual “on-the-go” yield monitoring for cotton and corn on a farm in Mississippi showed that accurate yield predictions can be made based on topography.

Researchers contracted to have a plane with LIDAR (light detection and ranging) sensors fly over the 1,000 rolling acres of the farm. LIDAR is a form of radar that can map elevations digitally, showing slopes and sun exposures, by bouncing laser light off the landscape.

By blending yield results with the maps, the scientists divided fields into high-, medium-, and low-yield zones.

One advantage of LIDAR landscape mapping is that it only has to be done once.

LIDAR topographic mapping is spreading from state to state. Louisiana, for example, has financed LIDAR mapping of the entire state.

Otherwise, it is expensive for an individual farmer to pay for LIDAR mapping. So, McKinion is also looking for alternative topographic mapping techniques.

James McKinion, an electronics engineer at the ARS Genetics and Precision Agriculture Research Unit at Mississippi State, Miss., did the study with entomologist Jeff Willers and geneticist Johnie Jenkins at the ARS unit in Mississippi. This research was published in Computers and Electronics in Agriculture.

ARS is the principal intramural scientific research agency of the U.S. Department of Agriculture (USDA). This research supports the USDA priority of promoting international food security.

When discussion centers around all the data that fields can generate these days, crop consultants and savvy growers truly love powerful software programs. Especially when data can transfer easily between desktop and a mobile device to take to the field.

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/