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By Palle Pedersen, Department of Agronomy and Alison Robertson, Department of Plant Pathology
There have been several reports in the press about poor soybean seed quality for this growing season. Seed quality is a problem for many companies this year but all are doing everything they can do to ensure we have the best quality seed possible. In Iowa, however, seed quality issues are minor compared to the south.
Seed quality
By John Sawyer, Department of Agronomy
A recent article in The Des Moines Register newspaper has caused considerable controversy regarding nitrogen in Iowa streams and rivers. The article (High ammonia levels threaten D.M.’s water, April 6, 2008) featured information about “ammonia” levels in certain Iowa surface water systems during the recent winter time period.
By Forrest W. Nutter, Jr., Department of Plant Pathology, Lu Liu, Sustainable Agriculture Program, Rich Pope, Department of Entomology, and Marlin E. Rice, Department of Entomology
Following an Iowa winter of ice, snow and cold temperatures, the predicted risk for Stewart’s disease of corn in 2008 is negligible throughout most of Iowa, with only the southeastern-most counties having a low risk.
By Rich Pope, Department of Entomology
Warm-blooded animals including humans generate their own internal heat and have regulatory systems to hold maintain body temperature in an operational range. These systems provide insulation from fluctuations of temperature in the environment and allow growth and development based on the passage of time in minutes, hours, weeks, months and years.
By Roger Elmore and Lori Abendroth, Department of Agronomy
Rain is forecast again for most of Iowa later this week. Little if any spring work has occurred because of cold weather and already saturated soils. More rain right now is not welcome for most of us corn growers!
By Antonio Mallarino, Department of Agronomy
By Daren Mueller, Extension Plant Pathologist
By Lori Abendroth, Palle Pedersen and Roger Elmore, Department of Agronomy
By Mahdi Al-Kaisi, Department of Agronomy and Mark Hanna, Department of Agricultural and Biosystems Engineering
By Greg Tylka, Department of Plant Pathology
