Expert: Early Spring Nitrogen Application Unlikely To Increase Wheat Yields

Despite the fact that an unusually wet fall and planting delays kept many wheat farmers from applying starter nitrogen, an Ohio State University Extension educator says they shouldn’t rush to apply spring nitrogen earlier than needed.

Even though wheat has had less time to grow and tiller, applying nitrogen too early in the spring could not only cause farmers to lose money, but also present environmental concerns — and it isn’t likely to increase yields, said Ed Lentz, associate professor who specializes in crop production and agronomy.

Instead of applying nitrogen early, Lentz said farmers should wait until green-up, at the earliest, to maximize yield potential, save money and guard the environment.

“Producers have asked if applying nitrogen earlier would offset the low fall tiller numbers and would tiller number and growth benefit from a split application,” said Lentz, who also is an OSU Extension educator in agriculture and natural resources. “In a word, the answer to that question is a resounding no.

“Our research has found that early application won’t result in more fertile tillers nor will it help to compensate for the fewer tillers we had in the fall,” he added. “And the later fertile tillers you get in the spring won’t produce the larger yields that would have been produced from fall tillers.”

Oftentimes, farmers may want to get into their fields and spread nitrogen early because labor doesn’t conflict with other field operations and they can avoid the risk of wet conditions after green-up.

“But there is no benefit for the wheat crop to apply nitrogen earlier,” Lentz said, noting that wheat does not readily take up nitrogen until after the stems begin to elongate, which is about six to eight weeks after green-up.

“So while it may be more convenient, it is riskier for nitrogen loss and won’t help your crop, so why take the risk of losing it in rain runoff?” Lentz said.

He said the general recommendation is to apply nitrogen one time between green-up and early stem elongation. That leaves anywhere from four to eight weeks (depending on the year) to apply nitrogen without having any yield decreases.

“And for those farmers who are nervous that they didn’t get any nitrogen applied in the fall, the unusually mild winter we’ve experienced this year has most likely allowed the soil organic matter to release more nitrogen than you’d typically see in a colder winter,” Lentz said. “Don’t change your management practices because of the unusual year we’ve had.”

Growers could also consider split application of nitrogen, which may result in larger yields compared to a single topdress at initial green-up, depending on the weather. Lentz said a split would also be a hedge if inclement weather prevented nitrogen being applied at stem elongation.

But, research has shown that a single topdress of nitrogen applied at early stem elongation yielded as well or better than a split application, and unless large nitrogen losses occurred at early green-up, yields were similar between early green-up and split applications.

“Growers also need to keep in mind that if nitrogen losses were great at early green-up, nitrogen would also be lost from the first part of a split program,” he said. “Thus a producer applying at the right time and selecting the right nitrogen source should expect yields similar to a split application, which saves money and the potential damage of a second trip across the field.”

Leave a Reply

Management Stories

ManagementThink You Know Water? Take WinField United’s ‘Unchartered Waters’ Quiz Via NatGeo
March 22, 2017
Water is among our most precious resources, and arguably the hardest working, with just one percent available for human use, Read More
Corn Field
LegislationTFI Hopes Court Dismissal Is ‘Final Chapter’ Of Des Moines Water Works Lawsuit
March 20, 2017
The Fertilizer Institute (TFI) released the following statement from President, Chris Jahn on the March 17, 2017, federal court dismissal Read More
ManagementSnowstorms, Asset Sales, and Soybeans Prices
March 16, 2017
Editors Paul Schrimpf and Eric Sfiligoj discuss the weather, precision ag, crop protection company mergers, and commodity prices in this Read More
Management2017 Commodity Classic Review
March 10, 2017
Editors Paul Schrimpf and Eric Sfiligoj discuss what happened at the recent Commodity Classic in San Antonio. Read More
Trending Articles
AdjuvantsA New Weed-Control Era Begins: But First, One Last Obstacle
March 4, 2017
There is trepidation, there is reluctance, and there is excitement. Ag retailers feel it all about the new dicamba and Read More
LIFT Academy video screenshot
Crop InputsLIFT Agriculture Academy: A Q&A With West Central Distribution’s Dean Hendrickson
March 1, 2017
West Central Distribution recently launched its LIFT Agriculture Academy, a new, premiere training and professional development resource for West Central’s ag Read More
Farmer and aptop
Matt Hopkins10 Warning Signs Your Website Is Grossly Outdated
February 8, 2017
Your Website is often a visitor’s first impression of your ag retail business. A positive first impression can set the Read More
AgriSync
Matt Hopkins17 Agriculture Apps That Will Help You Farm Smarter In 2017
December 9, 2016
Ag professionals are working smarter, not harder, than ever before. Smart farming technologies have enabled them to reduce costs, maximize Read More
R4023 Sprayer, John Deere
CropLife 100Ag Retail Equipment Report: The Green Party Continues
December 7, 2016
In the annual race for sales in the ag retail equipment marketplace, the color schemes for participants are a little Read More
Mike Stern
Precision AgClimate Corp. CEO Talks Retailer Support For Digital Ag
December 1, 2016
CropLife Magazine’s sister publication, AgriBusiness Global, recently sat down with Mike Stern, CEO of The Climate Corp., following the Monsanto subsidiary’s Read More
Latest News
Water Drainage
Eric SfiligojDMWW Lawsuit Dismissal Good News for Ag
March 27, 2017
On March 17 while most of the nation was toasting St. Patrick’s Day, agriculture was likely lifting a glass (or Read More
Eric Jenks, Wilbur-Ellis
Crop InputsWilbur-Ellis Launches ADVANTIGRO Plant Growth Regulator…
March 27, 2017
Wilbur-Ellis Agribusiness, a recognized leader in the marketing and distribution of crop protection, seed and nutritional products, as well as Read More
Yara West Sacramento Ribbon Cutting
Crop InputsYara West Sacramento Is Newest Addition
March 27, 2017
Yara’s West Sacramento Terminal was officially welcomed March 21 as the newest Yara North America facility in the U.S. While continually Read More
UncategorizedPrecision Ag, Iowa Water, and GM Corn Updates
March 24, 2017
Editors Paul Schrimpf and Eric Sfiligoj look at the state of precision agriculture, the dismissal of the Des Moines Water Read More
Pam Marrone
Crop InputsMarrone Bio Innovations Enters Biostimulants Market Wit…
March 23, 2017
Marrone Bio Innovations, Inc. is expanding beyond biopesticides and crop protection and into the biostimulant market by commercially launching Haven Read More
Nutrients for Life Foundation Teacher
FertilizerNutrients For Life Foundation Celebrates 10 Years Teach…
March 23, 2017
Those in agriculture know fertilizer is a vital ingredient to grow strong, productive crops. In fact, fertilizer is responsible for Read More
ManagementThink You Know Water? Take WinField United’s R…
March 22, 2017
Water is among our most precious resources, and arguably the hardest working, with just one percent available for human use, Read More
Corn Field
LegislationTFI Hopes Court Dismissal Is ‘Final Chapter’…
March 20, 2017
The Fertilizer Institute (TFI) released the following statement from President, Chris Jahn on the March 17, 2017, federal court dismissal Read More
Wheat Growers
Industry NewsWheat Growers CEO Dale Locken To Retire
March 20, 2017
CEO Dale Locken has announced that he plans to retire from Wheat Growers. Locken has served almost 15 years as Read More
Bayer Monsanto
Eric SfiligojBayer-Monsanto: Life, LibertyLink, And The Pursuit Of R…
March 20, 2017
As the calendar officially turns to spring, life is in full renewal mode. Flowers are blooming, birds are singing, and Read More
Corn Field
Crop InputsUltra Yield Micronutrients Acquires Kronos Micronutrien…
March 16, 2017
Ultra Yield Micronutrients, Inc. ”Ultra”, an affiliate of Cameron Chemicals, Inc., is pleased to announce that it has acquired the Read More
ManagementSnowstorms, Asset Sales, and Soybeans Prices
March 16, 2017
Editors Paul Schrimpf and Eric Sfiligoj discuss the weather, precision ag, crop protection company mergers, and commodity prices in this Read More
Soybean Field
Seed/BiotechBayer Invests $8.1 million In Soybean Advancement In Th…
March 16, 2017
Growers in Illinois and across the Midwest now have the added benefit of a state-of-the-art soybean research facility, increasing accessibility Read More
CHS
CropLife 100CHS Acquires Western Co-op Transport Association
March 16, 2017
CHS Inc., North America’s leading farmer-owned cooperative and a global energy, grains and foods company, has purchased Western Co-op Transport Read More
Young corn plants in soil
HerbicidesBest Management Practices To Control PPO-Resistant Weed…
March 14, 2017
Weeds resistant to the class of herbicides called protoporphyrinogen oxidase (PPO) inhibitors are spreading at a faster rate than weed Read More
Photo credit: The United Soybean Board/The Soybean Checkoff.
Eric SfiligojFungicide Resistance On The Horizon
March 13, 2017
For many years now, the agricultural market has struggled to keep ahead of an ever-growing number of herbicide-resistant weeds. According Read More
Management2017 Commodity Classic Review
March 10, 2017
Editors Paul Schrimpf and Eric Sfiligoj discuss what happened at the recent Commodity Classic in San Antonio. Read More
Farmer using AgriSync
ManagementMajor AgriSync Update Aims To Extend Ag Experts’ Power …
March 10, 2017
AgriSync announced a major update to its leading collaboration and service management tool for professional ag advisors and their farmer Read More