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Issue No. 1/March 26, 2010

First Issue for 2010
Publication of the Bulletin continues for another year; feedback is always welcome.

Herbicide Updates for 2010
An overview is provided of changes in herbicide options for weed management.

Corn and Soybean Herbicide Efficacy Tables
Efficacy ratings for corn and soybean herbicides (formerly published in the Illinois Agricultural Pest Management Handbook) are detailed.

Handling Untilled Fields of Cornstalks
Questions and answers are outlined regarding soil conditions, tillage, and crop residue following the excessively late harvest in 2009. (Originally published on March 5, 2010)

Anything New as the Wait for Dry Soil Continues?
The hope for some dry weather has been realized, but an early warm-up doesn't look likely.

Time to Evaluate Alfalfa Stands
Stand density at the start of the growing season offers one estimate of the potential productivity of an alfalfa field. Details are provided for evaluating by plant count and stem count.

You Can Still Get In On the Soybean Yield Challenge
It's not too late to participate in the Illinois Soybean Yield Challenge. Three training sessions will be held in Normal, Mt. Vernon, and Malta the week of March 29.

Nitrogen Fertilization in Light of Carryover Challenges from Last Year
Crop residue, compaction, unfertilized fields, N source and rate, and application method and timing are all addressed.

Phosphorus and Potassium: To Apply or Not to Apply?
What actions should producers take now regarding phosphorus and potassium fertilization, particularly if they were unable to test soil levels last fall?

Do I Need to Apply Sulfur to My Corn Crop?
Do shifting conditions mean that sulfur application for corn might be in order? Volunteers are needed for an ongoing study investigating this issue.

Regional Reports
Reports are provided this issue for east-central, northern, and southern Illinois.