ISU’s Weekly Update
March 15, 2010
New articles in the ICM Newsletter for the week of 3/8/2010 – 3/14/2010.
May 28, 2008 Agronomy
UNL: How Long is Too Long for a Crop to be Under Water?
A story in the May 20, 2005 CropWatch answers this question.
Flooded Fields and Crusted Soils: Determining When Replanting is Your Best Option includes replanting guides for corn and soybean by Lori Abendroth and Roger Elmore, extension agronomists formerly with UNL, and a table of how to estimate plant survival from flood damage at various crop stages. Air temperature is a key factor in survival – cooler is better.
From the table:
- For corn prior to the 6th leaf stage that’s underwater (6 inches of water on surface) and the air temperature is less than 77°F. will survive for four days. Longer flooding results in lower yields especially at lower nitrogen levels.
- Small soybeans that are completely submerged will survive several days to a week if air temperature is below 90°F.
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Recent NewsNews Archives
Purdue: Pest&Crop Newsletter
March 12, 2010
Welcome to a new year of the Pest&Crop Newsletter! Here is the link Issue 1.
Seed Trait Battles Raise Eyebrows
March 11, 2010
ANAHIEM, Calif. (DTN) — While a few companies will shoulder the brunt of criticism in upcoming discussions on the competitive climate — or lack of one — in agriculture, the reputation for all of agriculture may be at stake.
Tips for Handling a Wet Spring
March 11, 2010
Editor’s Note: Dan Davidson provides insight into what farmers might do this spring to deal with wet soil conditions. The information was provided specifically to AgProfessional so that readers can talk with customers about alternative field work that might be necessary this spring and to allow consultants and ag retailers to determine recommendations for fertilizer programs fitting into a farmer’s unusual spring workload.
Planting date recommendations for Iowa
March 11, 2010
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