Watch Those Yield Ceilings

Planting mismanagement can put a ceiling on yield potential, even before the plant emerges from the soil.Your grower-customers should keep this in mind if they are still preparing for this year’s corn production.

That’s the key message from Ohio State University Extension agronomists this spring. In Ohio and some other states, spring started off much like last year: cool and wet. Meteorologists are forecasting warmer, drier weather for the remainder of the month, and should make for ideal planting conditions.

"For some, this year seems like a repeat of 2007, with wet weather in some areas and some cool days," says Peter Thomison, an Ohio State University Extension agronomist. "But there is still plenty of time to get the corn crop established. We don’t want farmers to cut corners and push to get the corn in the ground before the field is ready. Mistakes made during the planting operation, like ‘mudding seed in,’ are usually irreversible when it comes to impacts on yields."

But agronomists don’t want growers to wait, either. The longer a grower waits to plant, the more a ceiling is put on yields.

"Generally we start seeing yields begin to fall about 1.5 bushels per acre per day of delayed planting after mid-May," says Thomison. "The record yields of recent years owe much to timely planting, as well as good seedbed conditions."

Thomison offers the following recommendations to help growers in Ohio and similar climates get their corn off to a good start:

  • Complete planting by mid-May. "Begin planting as soon as field conditions will allow, but avoid early planting on poorly drained soils or those prone to ponding," says Thomison.
  • Adjust seeding depth according to soil conditions. "Plant between 1.5 to 2 inches deep to provide for frost protection and adequate root development. In April, when the soil is usually moist and evaporation rate is low, seed should be planted no deeper than 1.5 inches," says Thomison. "When soils are warm and dry, corn may be seeded more deeply up to 2 inches on non-crusting soils."
  • Adjust seeding rates on a field-by-field basis. "Planting depths can vary from one field to another and within the same field. Adjust seeding based on soil type and drainage characteristics," says Thomison. Lower seeding rates are preferable when droughty soils or late planting (after June 1) limit yield potential. On soils that average 120 bushels per acre or less, final stands of 20,000 to 22,000 plants per acre may be adequate for optimal yields. On soils that average about 140-150 bushels per acre, a final stand of 28,000 plants per acre may be needed to optimize yields. On soils averaging 175 bushels per acre or more, final stands of 30,000 plants per acre or higher may be needed to optimize yields.
  • Plant full-season hybrids first, followed by mid-season and short-season hybrids. "Full-season hybrids lose the most yield potential the longer a farmer waits to plant them," says Thomison.

Leave a Reply

Latest News
FertilizerSimplot Introduces Fused-Safe Ammonium Sulfate Nitrate …
May 31, 2016
The J. R. Simplot Co.’s new FŪSN fertilizer is now commercially available to growers. Simplot uses advanced technology to fuse Read More
Growmark FS Outlet
StewardshipGROWMARK Recognizes Crop Specialists For Advocating Sus…
May 31, 2016
Five crop specialists who have excelled in engaging farmers in sustainable best management practices are the recipients of the GROWMARK Read More
Fertilizer Dealer Supply
UncategorizedFertilizer Dealer Supply Joins GVM
May 31, 2016
GVM has added Fertilizer Dealer Supply (FDS) to its growing network of Mako dealers. “I met Mark Anderson some 20 years Read More
Crop InputsRepar Registers New Biopesticide With U.S. EPA
May 31, 2016
Repar Corp., with headquarters in Silver Spring, MD, has developed Homobrassinolide 0.1%, a new generation plant growth promoter containing homobrassinolide, Read More
Industry NewsAligned Ag Distributors Names New VP Market Development
May 31, 2016
Aligned Ag Distributors LLC announced this morning the appointment of Tim Krueger to the position of VP Market Development. Krueger Read More
FertilizerCreating The Proper Environment For Yield Increases Wit…
May 31, 2016
Finely tuned nutrient management plans are helping farmers throughout the U.S. improve nutrient use efficiency, increase return on investment (ROI) Read More
Industry NewsJ.R. Simplot Names New Wholesale Agriculture Sales Vice…
May 31, 2016
Doug Stone will be joining the J. R. Simplot Co. as vice president, Wholesale Agricultural Sales within the Simplot AgriBusiness Read More
Adjuvants loading
AdjuvantsISAA 2016 Highlights Adjuvant Trends
May 31, 2016
Adjuvants can significantly improve the performance of crop protection products. Farmers and formulators enhance the efficacy of sprays by using Read More
Monsanto Luling Plant
Eric SfiligojWhat’s Next For Monsanto?
May 31, 2016
For the folks at Monsanto’s headquarters in St. Louis, MO, it has been an eventful few weeks. Back on May Read More
Craig Houin Sunrise Cooperative iPad
Precision AgState Of Precision Ag 2016: Gut Check Time For Value
May 31, 2016
There’s no denying that precision technologies and practices are more vibrant than ever. Equipment manufacturers have fine-tuned the hardware for Read More
ManagementWashington Visit and Bayer/Monsanto Deal Update
May 26, 2016
Editors Paul Schrimpf and Eric Sfiligoj discusses a recent trip to DC and the latest news on the proposed pairing Read More
Fertilizer closeup in hand
Industry NewsVerdesian: Striking A Balance Between Yield & ROI
May 26, 2016
Finely tuned nutrient management plans are helping farmers throughout the U.S. improve nutrient use efficiency, increase return on investment (ROI) Read More
Crop InputsLand O’Lakes Announces Minnesota Water Quality Pa…
May 25, 2016
Governor Mark Dayton and Land O’Lakes, Inc. President and CEO Chris Policinski today announced a new public-private partnership to protect Read More
Soybean Plant closeup
Industry NewsMonsanto Rejects Bayer Bid; Open To More Talks
May 25, 2016
Monsanto Co, the world’s largest seed company, turned down Bayer AG’s $62 billion acquisition bid as “incomplete and financially inadequate” Read More
Corn close up
Crop InputsArysta LifeScience Establishes Global Headquarters In R…
May 25, 2016
Arysta LifeScience has announced plans to relocate its global headquarters from West Palm Beach, FL, to Cary, NC, over the Read More
fertilizer blending and storage, Top 100
BlendersCHS Dakota Expansion Features AGCO’s GSI InterSys…
May 25, 2016
The continued growth of precision agriculture has increased farmer use of customized fertilizer blends best-suited for their soil conditions. Several Read More
ManagementAgriculture 3.5: A Bumpy Road Ahead
May 24, 2016
You may have read my article a few years ago on Agriculture 3.0, which is a term I coined to Read More
Topcon’s X30 display with CropSpec sensors
EquipmentGPS Autosteer Systems: Product Updates From Precision A…
May 24, 2016
Throughout 2015 GPS Steering solutions continued to evolve from what was once an after-market add on, to today’s cab where Read More