Applying Additional Nitrogen After Wet Conditions
Injection of anhydrous ammonia or UAN solutions would top the list of best options when conventional application equipmnet can be moved through the fields.
Integrated Crop Management News
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Estimating Nitrogen Losses
Continued wet soil conditions into June with warm soils, prolonged saturation and tile drainage enhance nitrate loss. One way to determine nitrogen (N) loss is to calculate an estimate.
Crop Minute Week of June 14
In this week's crop minute, two ISU Extension specialists discuss issues related to the overly wet growing season - soil nitrogen needs and crop diseases popping up with the rain.
Crop Minute Week of June 7
With recent rains and warm weather the crops are growing and so are the weeds. It's time to turn attention to weeds in soybeans.
Maintaining Pesticide Applicator Certification During Military Active Duty
Iowa National Guard members who hold private or commercial pesticide applicator certifications should contact IDALS when they return from service to determine certification status.
Stalk Borer Migration Is Beginning
Stalk borer larvae are predicted to begin movement across southern Iowa and in south central Iowa this week.
Threecornered Alfalfa Hopper Found in Iowa
A confirmed Iowa siting of threecorner alfalfa hopper feeding on soybean was made last week. While reduced tillage areas and late planted fields are more likely to get infested, the hopper rarely causes economic damage because soybean plants can compensate greatly.
Start Checking Soybean Roots for SCN Females
SCN females will begin appearing on soybean roots soon. Digging soybean roots and looking for the nematode females is an effective way to scout fields for SCN and also to check if SCN-resistant soybean varieties are controlling the nematode.
Characteristics of Corn Left Standing Through Winter 2009-2010 in Iowa
Ear rot severity, test weight, moisture and mycotoxin levels of grain from 99 ear samples collected from 72 overwinter standing corn fields are compared to those characteristics of 27 ear samples collected from fields in October 2009.
CCA Credit Opportunity on June 24
Jim Fawcett, ISU Extension Field Agronomist
Certified crop advisers (CCAs) can earn five hours of credit — three hours in soil and water management, one in pest management, 0.5 each in crop management and nutrient management — by attending a special CCA morning session and the Southeast Iowa Research and Demonstration Farm spring field day tour June 24. The morning session and field day will be at the ISU research farm near Crawfordsville.