By: Sonja Begemann, Farm Journal Seed and Crop Production Editor, Previously published on AgWeb Daily
As fields inch toward harvest Mother Nature isn’t letting up. Downpour after downpour brought on by hurricane Gordon is leading to questionable stalk and shanks in corn fields.
With stalks and shanks threatening to break, are you prepared to harvest early? Does it make economic sense? Scout fields, weigh drying costs and remember, every bushel you leave in the field is potential dollars out of your pocket. Continue reading
By: Roy Ulrich, Technical Agronomist for Dekalb/Asgrow, previously published on Ohio Ag Net
The growing season has been quite variable across the region this year so far. For some regions of Ohio, the start to the growing season may have been slightly delayed, but once it was fit the crop went in relatively fast and stress free. For other regions, the growing season was extremely late to get started and each management step has been a struggle to accomplish between all the rains. Continue reading
By: Pierce Paul, OSU Extension Corn and Small Grains Disease Specialist
Foliar diseases, especially Gray Leaf Spot (GLS), are beginning to show up in some corn fields. This is not at all surprising, given that the crop was planted relatively late and it has been wet and humid in some areas. GLS is favored by humid conditions, particularly if temperatures are between 70 and 90 F. Foliar diseases of corn are generally a concern when they develop early and progress up the plant before grain fill is complete Continue reading
By Peter Thomison and Alexander Lindsey, Ohio State University Extension
Persistent rains during the past two weeks have resulted in ponding and saturated soils in many Ohio corn fields and led to questions concerning what impact these conditions will have on corn performance.
The extent to which ponding injures corn is determined by several factors including: (1) plant stage of development when ponding occurs, (2) duration of ponding and (3) air/soil temperatures. Continue reading
By: Sonja Begemann, Farm Journal Seeds and Crop Production Editor
Published previously on AgWeb Daily
One billion dollars. Prior to Bt technologies farmers lost $1 billion annually to corn rootworm—in the form of chemical costs or actual yield loss. With resistance to traits that once killed the pest on the rise, it might just nibble its way back to a billion-dollar price tag.
Corn rootworm (CRW) poses a double threat—the adult snips corn silks, and if unchecked could prevent successful pollination and kernel development, and the larvae munch on roots which leads to risk for disease and plant stress. CRW was once controlled by traits but with resistance on the rise is now at risk of running rampant: it’s time to find a solution to slow the spread of resistance. Continue reading
By: Harold Watters, Ohio State University Extension
With some “late” planting some folks are concerned already about whether or not we might be caught by a fall frost before maturity without a change in maturity selection. Not to worry. The corn plant has the ability to adapt to the later planting by advancing more rapidly through the growth stages. Continue reading
By: Dave Huff, NuTech Seed Agronomist, Eastern Product Specialist
Previously on Ohio Ag Net
With a late start for some and corn fields not yet planted throughout the region, growers are asking, “Do I need to be switching to earlier maturing corn varieties?” and “Should I replant problem fields?”
It seems like each year I need to address these questions. We learned in the past that corn requires fewer Growing Degree Units (GDUs) to mature when planted after May 1 than listed in product brochures. From my own research trials and University trial data, we can expect corn planted in our region to require on average around 6.8 fewer GDUs to mature for every day of delay beyond May 1. Another way to interpret this is that it would require approximately 200 fewer GDUs from May 1 planting versus June 1 planting to reach black layer. Continue reading
By: Steve Culman and Peter Thomison, Ohio State University Extension
As prospects for a timely start to spring planting diminish, growers need to reassess their planting strategies and consider adjustments. Since delayed planting reduces the yield potential of corn, the foremost attention should be given to management practices that will expedite crop establishment. The following are some suggestions and guidelines to consider in dealing with a late planting season. Continue reading
By: Peter Thomison, Steve Culman, OSU Extension State Specialists
In the quest for high corn yields, considerable attention has been given to increasing various inputs, including seeding rates and fertilizers, narrowing row spacing, and making preventative applications of foliar fungicides, growth regulators and biological stimulants. However, the significant drop in crop net returns that’s occurred in recent years warrants developing strategies to lower input costs. An input that might have paid for itself with $5.50/bu corn may not at $3.75/bu corn. A practical and economic approach to achieving high yields is to follow proven cultural practices that enhance corn performance. Continue reading
By: Ashley Davenport, Farm Journal Broadcast Multimedia Editor
In 1983 for the first time, planted soybean acres surpassed corn acres by 3.5 million acres. Some market analysts thought 2017 would be another year this would happen, but it didn’t.
There have been some rumblings that because of current corn prices, 2018 could be the year where King Corn has its crown knocked off and replaced with another crop: soybeans.