The compatibility with Trimble GPS base stations will make conversions from buried wire to Valley GPS Guidance easier, as it doesn’t require the same labor and maintenance as buried wire. Another advantage of GPS Guidance is that growers can install a corner machine on rented ground without the commitment of a buried wire.

The Valley GPS Guidance options also provide growers opportunities to put more acreage into irrigated production.

For more information about GPS offerings with Valley Irrigation, producers can contact their local Valley dealers.

With the patent pending Cruise Control, available exclusively from Valley Irrigation, producers can program a center pivot irrigation machine equipped with a Pro2 control panel to automatically adjust its speed, based on completing a defined number of degrees in a specific amount of time. This feature will help producers more precisely manage chemigation and fertigation through their center pivot irrigation equipment.

Cruise Control will be standard on all Pro2 panels this spring. Existing Pro2 control panels can be upgraded with Cruise Control software. Interested producers should contact their Valley Irrigation dealer for more information or visit www.ValleyIrrigation.com.

Bruce Crapo, a grower of 6,000 acres of commercial potatoes and 2,000 acres of seed potatoes in Idaho, is a good example of how the average potato farmer looks at precision agriculture – he uses technology to reduce costs, increase output and improve profits.

Crapo isn’t thrilled at the cost of high-tech equipment such as GPS-guided tractors, but he knows it’s saving him money and there’s no way he can turn back now.

“There is a substantial initial cost involved,” Crapo said. “But I also know it is saving me money. What do you do? Go back to what you were doing before? That’s not an option.”

Crapo, who uses Global Positioning System (GPS) technology on all his planters and harvesters, said the latest precision ag technology has taken farming to a different level.

“It’s light years ahead of what it was when we were doing it by hand,” he said. “We’re not going to go back to not using it, but we are wincing a little at the cost.”

Precision agriculture can loosely be defined as using new technologies such as GPS, sensors, variable rate application equipment and aerial or satellite images to make farming easier and more profitable.

Simply put, precision agriculture can help farmers improve their margins by decreasing their operating costs.

Idaho farmer Robert Blair, owner of PineCreek Precision, says the biggest benefit of precision farming is that it gives producers the ability to manage their farm on a production zone basis rather than a whole field basis. This shift, he said, allows farmers to save time and money and helps them offset the rising cost of chemicals, nutrients, fuel and fertilizer.

Blair uses a wide array of precision agriculture techniques on his 1,500-acre farm and said the technology is saving him tens of thousands of dollars every year.

Read on to learn more…

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.

The Nebraska Agricultural Technologies Association (NeATA), founded in 2001 by innovative Nebraska farmers, ranchers, agribusiness representatives and the University of Nebraska Extension, has compiled another great conference.

Need a technology makeover? How about using Nitrogen more wisely? Do you want to learn how to tell your story and share your values with consumers? How about learning a better way to select crop genetics? Check out the upcoming program, and book your trip now.

For Facebook users, find NeATA here and add them as a favorite.

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 agreement creates an alignment of Valley Irrigation dealers with the latest in agronomic technology to provide growers true precision irrigation with center pivots. Valley Irrigation with VRI Zone Control, and CropMetrics with automated agronomic VRI prescription services, are also proud to announce their AE50 awards for 2011 as a top 50 innovative new product produced in 2010.

“Precision Irrigation starts with building a precise water management plan,” said Craig Malsam, Valmont Irrigation Vice President of Engineering. “Applying the optimum level of water and nutrients through a center pivot is more important than ever. We’re excited to be the first in our industry to supply a whole new dimension of precision irrigation through our agreement with CropMetrics and their optimization service available through our Valley dealers.”

“As our single most valuable natural resource, applying excess water is an unnecessary cost. Apply too little water, and yield potential is now lost as well. Our solution is to optimally apply water specific to soil type,” said Nick Emanuel, CropMetrics President. “We’re excited to work with Valley dealers and offer Valley customers the ability to take Precision Agriculture to the next level with our unique precision agronomic solutions and data services.”

CropMetrics specializes in full-service data collection, processing, and advanced yield analysis. The company supplies all proprietary web-based software and large-scale data processing so agronomists, crop consultants, ag retailers and Precision Ag specialists can focus on providing fast, reliable and profitable Precision Ag programs for variable rate irrigation, nitrogen and seeding.

Valley Irrigation VRI Zone Control provides individual sprinkler or span control and is fully compatible with all new and existing center pivots equipped with the Valley Irrigation Pro2 control panel. The Pro2 panel uses power line communication to remotely manage as many as 30 VRI Zone Control units. This allows each individual control unit to be easily positioned at any point along the pivot span. Because the new VRI Zone Control utilizes the on-board computing power of the Valley Irrigation Pro2 panel in combination with power line communication, the added VRI equipment cost is very reasonable.

“We believe that combining Valley Irrigation control technology with CropMetrics precision services is the future of mechanized irrigation,” said Malsam. “Producers with pivot irrigation have always been able to control how much water is applied to a field. But this technology allows producers to control how much water, fertilizer and other crop management products are variably applied based on precise agronomic data.”

The AE50 awards will be announced during a presentation at the American Society of Agricultural and Biological Engineers (ASABE) Agricultural Equipment Technology Conference (AETC) in Atlanta, Ga. on January 6 as part of the AG CONNECT Expo. Representatives from CropMetrics and Valley Irrigation will be available to demonstrate the new VRI technology in the Valley Irrigation booth at AG CONNECT.

McGrath, owner of McGrath Family Farms commented, “On our ranch there are several different soil types. One cropping program does not fit all. With ClimateMinder you get very accurate information about the soil moisture content on any block. I’m irrigating less overall. It’s saving me water, time, and money.”

ClimateMinder’s CEO Bulut Ersavas explained, “By monitoring and controlling to measured conditions, ClimateMinder can alert growers in real-time to conditions that threaten their crops, such as extremes in temperature or moisture, and the need to take corrective action.”

ClimateMinder’s monitoring, management and control platform is provided as an internet-based software-as-a-service (SaaS). The system gathers data using an intelligent, fail-safe mesh network of wireless sensors and controllers that can be installed quickly and cost-effectively throughout an entire field, with a recommended density of one station per 20-40 acres.

Ersavas also added, “Our system ensures that growers have the information to optimize the management of their water, nutrient and chemical supplies, lowering costs and increasing yield and profits. And by maintaining this information in ClimateMinder’s professional database, growers are able to better plan, budget, and organize their crops from season to season.

“We work with our growers from installation to training and on-site support to make sure they utilize the system to the fullest extent. We are also constantly innovating and improving the features of the system with the feedback from our clients.”

Mooney attributes much of the show’s success to their industry supporters. “The show was 30 years in the making so there was a lot of interest and a lot of participation from throughout the industry. So it was a very successful event,” said Mooney.

It’s also the support of the industry that is helping them create an even more educational event for next year. Mooney said this year there are more exhibitors and 35 brand new sessions targeted for growers who want to learn more about precision farming to those who own dairy or beef operations. Several of the educational sessions will cover smartphone technology, wireless technology and irrigation. All the sessions are designed to help growers better manage their farm operations all while increasing profits.

This year, AG CONNECT Expo 2011 will be hosted along side the American Farm Bureau Federation’s annual meeting. The group will be exhibiting along side AG CONNECT in the pavilion and attendees of both events will have access to all the exhibits. In addition, the event is certified as an international buyer program show by the U.S. Department of Commerce and Mooney said this is advantageous because the event is promoted at their posts throughout the world. Last year, 20 percent of the attendees were from other countries and Mooney expects this number to be much higher at next year’s show.

To learn more about the event, see a list of the dozens of educational programs and to view information about the more than 100 exhibitors, visit www.agconnect.com. You can also register online and those who sign up by December 10, 2010 will receive registration discounts.

You can also learn more about AG CONNECT Expo 2011 in Sara Mooney’s interview. Don't Miss AG CONNECT Expo 2011

Reetz is an independent agronomy consultant based in Monticello, Ill., with long experience in research and education, from his role as an extension and research corn specialist at Purdue University to a 28-year post as a regional agronomist with the Potash and Phosphate Institute/International Plant Nutrition Institute. Reetz was one of the founders of the Certified Crop Adviser program, has served as first vice chair of the Conservation Technology Information Center, serves on the Executive Committee of the National Association of Conservation Districts, and is an active member of the American Society of Agronomy, the Crop Science Society of America and the Soil Science Society of America.

“We are delighted to have Harold in the role of ADMC’s executive director,” says ADMC president Charlie Schafer. “He brings a combination of research expertise and on-the-ground practicality that will help the coalition continue to help advance the understanding of drainage water management systems and communicate that knowledge to many audiences. Harold’s interest in high-yield cropping systems and precision agriculture also make an excellent tie-in with the next frontier in crop production and environmental protection – the management of agricultural drainage water.”

ADMC conducts training sessions and serves as a clearinghouse for information on drainage water management systems. The group’s web site, www.admcoalition.com, features cost-benefit analyses of drainage management systems, guidance on drainage regulations, and data from many of the 19 on-farm demonstrations conducted as part of the Midwest project.

Reetz says he is eager to help ADMC develop even more outreach and educational programs.

“Having grown up on a grain and dairy farm in east-central Illinois, I have known the value of a good drainage system all my life, and I am intrigued by the possibilities for managing those systems for better water efficiency for the crops and better control of water quality downstream,” he says.

Specifically designed for land leveling and drainage applications, it works in conjunction with a laser transmitter to provide automatic machine control of implements such as scrapers and drainage machines, helping farmers to manage water on their fields regardless of crop type or water requirements.

The system is ideal for implements with PT valves, and can use either dual rigid mast control, or single electric mast control. Key components include the LR410 laser receiver and the new CB60 control box, providing a digital elevation display that can be used in both survey and control modes.

The CB60 control box delivers greater flexibility than its predecessors with configuration options for both surveying and grading. Owners of existing control systems can use the CB60 box as a drop-in replacement product, so customers with existing P.A. Laser Grade Control systems do not need any new cables or components.

The AG GCS200 system and the CB60 control box are compatible with English or Metric units and can be used with several types of laser controlled water management and field-leveling products.

“Drainage and leveling professionals have experienced that through the use of laser-guided leveling and drainage equipment, they can substantially improve productivity and accuracy as well as provide the grower with increased crop yields,” said Erik Arvesen, vice president and general manager for Trimble’s Agriculture Division. “Now, the AG GCS200 makes it easier to keep laser-leveling equipment operational and productive on scraper and drainage type implements in the field.”

The AG GCS200 system and the CB60 control box are available now. Contact a local Trimble dealer at: www.trimble.com/locator for more information.

PepsiCo announced plans to roll-out its new i-crop farming technology on a global basis. The web-based tool, which was developed by PepsiCo in conjunction with Cambridge University, United Kingdom, is a crop management system that will enable PepsiCo’s farmers around the world to monitor, manage and reduce their water use and carbon emissions, while also maximizing potential yield and quality.

Trials of i-crop are currently underway at 22 farms in the U.K., where PepsiCo yesterday announced ambitious plans to reduce carbon emissions and water usage by 50 percent across the farming of its core crops in the next five years.

The technology will be rolled-out in Europe in 2011. The company hopes to take it to India, China, Mexico and Australia by 2012.

As one of the world’s largest food and beverage businesses, with brands including Quaker, Tropicana, Gatorade, Pepsi-Cola and Frito-Lay, PepsiCo is a major investor in global farming. In 2010, the company announced 15 global goals and commitments to guide its work to protect the Earth’s natural resources through innovation and more efficient use of land, energy, water and packaging.

In the U.K., the company is the largest purchaser of British potatoes and one of the largest purchasers of British oats and apples, using 100 percent British produce in Walkers crisps, Copella English Apple juice, Quaker Oats, Oatso Simple and Scott’s porage.

Richard Evans, President of PepsiCo U.K. and Ireland said, “Farming is in the DNA of our business – we rely on fresh produce every day. Finding ways to produce more food with less environmental impact is essential to our future.” He added, “i-crop has the potential to revolutionize the way we farm, enabling our farmers to save costs and water and carbon consumption, while at the same time improving their yields. I am immensely proud of this innovation which I hope will also benefit PepsiCo farmers around the world.”

In its first Sustainable Farming Report published yesterday, PepsiCo U.K. outlined how it is working in partnership with its 350 British farmers to reach its aim of ’50 in 5′. Other initiatives announced include trials of new low-carbon fertilizers and plans to replace more than 75 percent of PepsiCo U.K.’s current potato stock with varieties that will significantly improve farmers’ yields and decrease wastage by 2015. A full copy of the report is available for download at www.pepsico.co.uk/farming.

Commenting on the PepsiCo U.K. sustainable farming report, Richard Perkins, Senior Commodities Adviser at WWF said, “The food industry is starting to recognize that in order to fully embed sustainability and biodiversity in its business practices, a large part of the focus must be on the agricultural supply chain. In this respect PepsiCo U.K. has taken a leadership role in recognizing that it is, at its heart, an agricultural business. The focus of the business on improving its key environmental impacts, such as greenhouse gas emissions – in the field and on the farm – is most welcome.”

For further information about i-crop visit: www.i-crop.com

i-crop will be rolled-out to the following markets in 2011:

Holland
France
Germany
Belgium
Spain
Portugal
Turkey

Agricultural engineers Susan O'Shaughnessy and Nolan Clark adjust an infrared thermometer that measures crop canopy temperature as a way of controlling a center pivot irrigation system.

A system that turns irrigation water on and off automatically based on leaf temperature is being developed by Agricultural Research Service (ARS) soil scientist Steven Evett and colleagues in Texas.

Evett, a soil scientist at Bushland, Texas, and cooperators are developing time-temperature threshold (TTT) technology that is based in part on a discovery by Evett’s colleagues at Lubbock, Texas, that plants grow best at certain narrow temperature ranges that vary by crop species.

Later developments by Evett and his colleagues led to invention of an irrigation control system that uses feedback from the crop, in terms of leaf temperatures, to control irrigation and crop water use efficiency.

Evett’s colleague Susan O’Shaughnessy, an agricultural engineer at the ARS Soil and Water Management Research Unit at Bushland, has developed wireless infrared thermometers mounted on center pivot irrigation arms as well as in the field. She is also integrating sensors that can help determine whether to skip watering parts of a field because plants are suffering from disease rather than drought or because no plants have survived in that part of the field.

Ultimately, she and Evett will seek a cooperative research and development agreement with a center pivot manufacturing company that can build the sensors and control system into their equipment.

This research is part of the Ogallala Aquifer Program started in 2004, a partnership between ARS and the Ogallala region’s universities. The Ogallala Aquifer underlies eight states from Texas to South Dakota and is one of the world’s major aquifers. The goal of the Ogallala Aquifer Program is to protect the towns and their livelihoods, including agricultural industries, by stopping the depletion of the aquifer.

Water availability is key to farming in the Ogallala region. Automated irrigation systems are seen as one major way to move towards sustainable use of the aquifer because they can reduce water use while enhancing profitability due to the reduction in pumping costs.

For more details, read on…

The new feature allows growers to fully control and monitor their irrigation pivots anywhere through the convenience of smartphones.

“FieldNET Mobile provides a labor-saving innovation with the convenience of web-enabled phones,” says Reece Andrews, GrowSmart product manager at Lindsay. “With full control and monitoring from anywhere, growers are more efficient with their time and always know the status of their irrigation systems.”

FieldNET Mobile’s graphical interface supports most industry-leading smartphones, including the iPhone, Droid and BlackBerry, according to Andrews.

FieldNET is an award-winning web-based irrigation management system. With the addition of FieldNET Mobile, growers can view the current status of all their pivots in one list, receive system alerts, arrange pivots by predefined groups, view water usage reports and receive a history of pivot runtimes.

“FieldNET Mobile is very easy to set up and features intuitive color-coded graphics that show growers in-depth pivot information,” Andrews says. “With simple touch navigation, users can quickly control pivot operations over their phone, saving them labor and making irrigation management convenient and easy from virtually anywhere.”

FieldNET Mobile is available as an upgrade in all areas serviced by FieldNET.

For more information, contact your local Zimmatic dealer or visit www.lindsayfieldnet.com.

AquaMon allows active monitoring of the soil. Knowledge of soil conditions is essential to achieve high crop yield with less water.  Maintaining the optimal level of moisture in the ground permits crops to flourish.  Doing so with the minimum amount of water requires real-time data on soil conditions. An AquaMon sensor node can support up to six sensors of any variety including soil moisture content, soil temperature, air temperature, humidity, pH sensors, and nitrate sensors.

In addition to monitoring soil conditions digitally controlled outputs can activate external equipment such as flow valves or nutrient injection equipment.  Much as electronic fuel injection permits automobile engines to increase power while reducing fuel consumption and emissions; real-time soil monitoring allows water conservation without impacting crop yield.

The data generated by AquaMon can be viewed in two ways, locally or on-line.  Cermetek created Remote Sensor Viewing Platform (RSVP) software to allow the irrigation decision maker to load the field data on his computer and easily view the data patterns.  The data can also be uploaded onto our server and be viewed in the same format using a standard browser.  Storing the data on-line allows the data to be viewed from anywhere with Internet access and even allows multiple authorized users to view the same data.

AquaMon is expected to be available this spring.  The cost of a single sensor node is expected to start at $300 plus the cost of the sensors.  Cermetek is actively recruiting Irrigation dealers to resell the AquaMon product line.

I hope you continue to find value in the information provided. And, as always, we appreciate any and all comments from our readers.

Enjoy. And have a fun, safe and happy New Year’s Eve tonight.

July
Planter and Sprayer Controls Make Precision Farming Pay
InfoAg Speaker Promotes Fertilizer BMP Needs
Virtual Weather Technology Helps Agronomic Decisions
InfoAg Talk: Soil Management Zones Increase N Efficiency
InfoAg Talk: Understanding Nutrient Variability

August
Precision Farmers Cut Pesticide Use With Seed
Add Precision Farming Promotion To Your Chore List
Yield Monitors: Extreme Value in Precision Farming

September
Precision Farming: How To Grow Your Technology
Free Satellite Images Help Spot Field Problems
Variable Rate Precision Farming – The Next Big Thing
Precision Farming And Water Quality Efforts

October
The Power Of Harvest Data
Researchers Using GPS To Cut Erosion With Waterways
Precision Soil Sampling Made Easier
Harvest Data That Keeps On Giving
Talk Precision Farming With Your Seed Dealer
Can Precision Farming Cure World Hunger
GPS Accuracy – How Accurate Is Accurate

November
Think About Saving Seed Input Dollars In 2010

December
Precision Farming Adoption And Payback
Precision Agriculture Starts At The Soil Level
Precision Farming 2009 – What We Learned
Technology Helps Farmers Plant And Fertilize More Precisely

Pre-conference programs will focus on Optimizing Pivot Irrigation Management (9:00 to 4:00) and Social Media Applications in Agriculture (1:00 – 4:00) will be offered the afternoon of January 27.

The conference opens Wednesday evening with Dr. Raj Khoslo, Precision Agriculture Specialists, Colorado State University, discussing Precision Nutrient Management on Site-specific Management Zones, followed by Bill Kranz, Irrigation Specialist, University of Nebraska-Lincoln addressing Monitoring Irrigation Water Application with Computerized Controllers.

Thursday morning opens with international guest and precision agriculture expert, Sam Tengrove, Australian farmer, sharing Adoption of Precision Agriculture by Australian Grain Growers. Additional general sessions offered include Broadband: Who Needs It?, Mapping Evapotranspiration with High Resolution and Internalized Calibration (METRIC), and Global Perspectives of Site-specific Weed Management.

Twelve concurrent sessions addressing a variety of emerging agricultural technology topics will also be offered on Thursday. The concurrent sessions in the Ambassador room will be hands-on workshops. See the conference brochure.

Up to 8 CCA credits are available for conference participants with an additional 6 CCA credits available to those who attend the Optimizing Pivot Irrigation Management pre-conference workshop.

More information is available at http://neata.org.

FieldNET's user-friendly web portal

Crop irrigators can now monitor and control their entire center pivot irrigation systems via the Internet thanks to Lindsay’s added pump control on their existing FieldNET system.

In California, a new study by the Pacific Institute points to ways that agriculture can still flourish despite diminishing water supply and uncertain climate change. But, new steps to significantly increase water use efficiency must be taken.

The good news is that many farmers and irrigation districts have already been making water-use efficiency improvements. The better news is that there is still tremendous untapped potential – in millions of acre-feet. Policy and water management changes are imperative to capture this potential.

The new report, Sustaining California Agriculture in an Uncertain Future, quantifies the potential to maintain and even increase agricultural productivity while reducing agricultural water withdrawals and vulnerability to drought and climate change. The analysis estimates that potential water savings of between 4.5 – 6 million acre-feet each year can be achieved statewide by comprehensive changes in the irrigation technologies and management practices we use to grow California’s crops. In comparison, this savings is 19 times the amount of water returned to the environment through the recent Delta smelt ruling.

“The three scenarios we evaluated for improving the efficiency of water use in California agriculture all show the potential for significant water savings,” said Dr. Peter Gleick, president of the Pacific Institute, “and these are technologies and management strategies that we could implement now, if we would recognize the urgency and have the will to make the tough decisions and policy changes.”

Many farmers have worked hard to improve water-use efficiency in recent years, but the Sustaining California Agriculture report shows that significant potential for water savings remains. For example, an astounding 60% of crops are still irrigated in California by flooding the field – a practice that leads to unproductive water loss. Conversion to sprinkler and drip irrigation allows farmers to apply water with greater precision and uniformity. Other management practices, such as irrigation scheduling and regulated deficit irrigation, have also been shown to reduce water use while improving crop quality and/or yield.

The report features several “early adopters” from the agricultural community, growers who have implemented water conservation and efficiency improvements to benefit both their future and their bottom-line. Craig McNamara, owner and operator of Sierra Orchards, has converted many fields to drip irrigation and installed tailwater recovery ponds to capture excess water runoff. “Conservation has to be a critical part of what we’re doing on the farm and as citizens of California,” stressed McNamara. A video clip and transcribed interview with Craig McNamara is available at the Pacific Institute’s website: http://www.pacinst.org/reports/california_agriculture.

Key to success in making water efficiency improvements for farmers like McNamara has been financial support from federal, state, and local programs. The new report makes specific recommendations to expand this support, such as property and sales tax exemptions, rebates for efficient irrigation equipment, greater federal support through Farm Bill conservation programs, and pricing policies that generate funds that can be invested in local farms.

High returns: Collector T. Soundiah inspecting a field of brinjal, raised under precision farming at Mangalam in Tiruchi district. Photo by M. Moorthy, courtesy of The Hindu

Part of India’s National Agriculture Development Program (NADP) promotes a precision farming technique that is gaining popularity, according to a recent story in India’s national newspaper, The Hindu.

Over the past two years, precision farming techniques have been promoted in 900 hectares across the district in various crops including sugarcane, maize, brinjal, tomato, onion, tapioca, sunflower and groundnut.

With installation of drip irrigation system and fertigation (for application of soluble fertilizers) units being essential requirements, farmers could avail a 50 per cent subsidy for the equipment. A farmer could avail a maximum subsidy of Rs.65,000 a hectare, including the cent per cent subsidy of Rs.25,000 for soluble fertilizer, said Collector T. Soundiah, after inspecting some of the precision farming fields in the district on Tuesday.

The higher yield achieved through the drip irrigation systems and fertigation, under which the soluble fertilizer was applied through the drip irrigation system, has been an attraction for farmers.

“This is the first time we have taken up cultivation of brinjal and the results has been encouraging so far,” said A. Ramasamy, who along with his brother A. Easwaran, has raised the vegetable in two acres at Mangalam village in the drought-prone Thathaiyengarpet union. Mr. Ramasamy, who has grown two different hybrid varieties, even takes the longer variety to the Salem Uzhavar Sandhai where such brinjals find a better market.

A cluster-based approach was also being promoted under the scheme, so that small farmers in villages could come together to avail the subsidy given under the NADP in clusters of 20 hectares each. Farmers could achieve up to 50 per cent increase in yield by adopting precision farming techniques, according to S. Robert Vincent, Deputy Director of Horticulture.

Responding to the request of some farmers, Mr. Soundiah said the district administration would take steps to get subsidy for installing solar-powered fences around their fields. Farmers could come forward to avail the subsidy for purchase of refrigerated vehicles, under the National Horticulture Mission, for transporting their produce, he said.

“We use variable rate application to spread phosphorus, potassium and ag lime,” he notes. “What we put where depends upon soil sample results. Soil sampling comes first. We use hybrids, but also factor in soil types and yield goals when deciding how much to apply where.”

Rates for lime, for example, vary from a half-ton per acre to 2.5 tons per acre, largely due to variations in soils. “If we just applied two tons on the whole field, we would be overapplying lime on half of a field like that,” Eric explains. By putting inputs where they’re needed most, he believes they get their highest yields.

Variable-rate application also comes into play when applying nitrogen for corn, Wappel notes. He prepares many of his own prescriptions. Once prepared, they instruct the computer controller on board the tractor cab which rate to apply where. Here’s an example of how they use variable-rate applications to vary N rates.

“We might average 150 pounds of N per acre,” he explains. “But rates applied may vary from 100 to 200 pounds per acre.”

Varying seeding rate for corn is one of the most important things they do, thanks to the variation in their soil types, Wappel says. He writes prescriptions that vary from 20,000 to 35,000 seeds per acre for the same hybrid

“If there’s a sand hill in the field, we want to drop about 20,000 there,” he notes. Average ground typically gets 31,000 seeds per acre. Since it’s cool and wet and hard to get a stand in muck, the rate there might be 35,000 seeds per acre. On what we call good ground, we’re typically going to about 34,000 seeds per acre.”

Since the January launch of The Weather Channel’s ‘Agriculture News & Forecast’ web page, growers who used the site requested the addition of a GDD calculator. To access the tool, simply enter your zip code (or sign in to your Weather Channel home page) and click the Growing Degree Days Calculator link.

“The growth and development of crops is directly impacted by the growing degree days, and having this information available can help farmers make better informed management decisions,” said Boyd Carey, lead of technology development for Monsanto. “TWCi has created an easy way for growers to run those calculations to compare different years at a given location. In a spring like this one where we’ve had so much rain and so many cloudy days across our agricultural production areas, this tool could prove useful immediately.”

Farmers can compare two different years’ GDD (as far back as 2003) for the same date range and location. Additionally, each calculation — one of the most complex on weather.com — includes the 30-year-average GDD for the selected dates and location, alerting farmers to the typical GDD for the selected time frame and location. The calculator uses both forecast and 30-year climatology data from The Weather Channel, allowing for past, present or future calculations. The calculator draws from the most accurate weather data available, using proprietary TruPoint technology created by The Weather Channel. TruPoint forecasts allow for future weather information accurate up to 2 kilometers (1.24 miles). This technology combines traditional weather observations with even more data to create forecasts for more than 1.9 million locations — literally filling in the gaps of the reporting systems used by other providers.

Valley Irrigation now offers GPS Guidance for linear irrigation equipment. Here’s what two farmers said about their trials with this new precision agriculture technology.

Leonard Water Services, the local Valley dealer serving the Abilene, Texas area, had firsthand experience with Valley GPS Guidance on linear irrigation equipment last summer, as part of Valley Irrigation field trials. Jim Leonard, partner, Leonard Water Services, liked what he saw during the trial and agreed with LaRue that GPS Guidance reduces overwatering.

“When you reverse linears at the end of the field, there’s a tendency for non-GPS guidance options to overcompensate the steering of the linear machine during the repositioning, and that can lead to overwatering some parts of the field,” Leonard said. “But GPS Guidance from Valley held the linear to a much more accurate position. We didn’t see any overwatering. Everything about the operation was positive. We haven’t seen a drawback yet and will likely install GPS Guidance on more linear irrigation equipment that our dealership sells in the future.”

Valley GPS Guidance works with virtually all linear irrigation equipment and is compatible with John Deere™ Starfire™ RTK.

That compatibility was important to Steve Coester, farm manager of Ak-Chin Farm in Maricopa, Ariz., who also participated in the GPS Guidance field trials. In addition to eliminating the need for above-ground cable, he liked how Valley GPS Guidance worked with the farm’s current setup. “We use GPS in all our equipment,” said Coester. “So it was easy to integrate GPS Guidance with our operation, and the programming was simple.”

GPS Guidance for linear irrigation equipment is the latest GPS product innovation from Valley Irrigation. In 2008, Valley introduced GPS Ready control panels for center pivot and linear irrigation equipment that provide growers with another choice to determine field position by utilizing the accuracy of GPS technology. LaRue said Valley is currently field testing GPS Guidance for use with corner pivot irrigation. Pending trial results, the company anticipates GPS Guidance for corner pivots will be available in 2010.

GPS Guidance is available through Valley dealers. Producers should contact their local Valley Irrigation dealer for more information about Valley linear irrigation equipment and GPS Guidance options.

“We have our computer panels that are industry exclusive GPS ready,” Sara Sims with Valley said during an interview at Sunbelt with Southeast AgNet’s Randall Weiseman. The GPS Ready PRO2 Pivot Control Panel and GPS Ready AutoPilot Linear Control Panel currently are available from Valley dealers. The GPS Ready Select2 Pivot Control Panel will be available later this year.

“If you’re doing split crops or different crops during the growing season, you’ll be able to computerize and track your programming to change your water and chemigation throughout the field,” Sara said. She added that current customers can upgrade existing PRO2 panels for the new GPS ready panels.

Listen to Randall’s interview with Sara here:

sunbelt-valley-sara.mp3

“All of our computerized control panels will be GPS Ready, which means producers will be able to easily take advantage of the benefits of GPS technology,” Valley Irrigation’s Rich Panowicz says. “Producers need to be able to manage precision application of water and fertilizers. GPS Ready control panels for center pivots and linears can help producers do just that. With the high costs of fuel, fertilizer, water and other inputs, it’s important for producers to incorporate these tools that will help their bottom line.”

The GPS Ready control panels from Valley Irrigation differ from other control panels on the market because they perform all of the necessary GPS position calculations right in the control panel, therefore eliminating the need for external computers on the machine.

They also are compatible with different types of GPS receivers, including WAAS-enabled receivers. This means producers can pick the GPS receiver with the accuracies necessary to meet the required management needs.