Frogeye Leaf Spot Resistance NOT Found in Iowa
The possible development of resistant strains of the frogeye leaf spot pathogen to strobilurin fungicides should be a consideration as growers are deciding about foliar fungicides for 2012.
Integrated Crop Management News
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Be Cautious When Interpreting Early Fall Soil-Test Results
Sampling under very dry conditions may increase soil sampling error because it is more difficult to control sampling depth and proper soil core collection.
New Publication Makes Interpreting Manure Nutrient Analyses Easier
Iowa State University Extension and Outreach has recently released a publication that complements existing extension manure management resources. How to Interpret Your Manure Analysis, PM 3014, explains the value of manure sample analyses that indicate nutrient concentrations.
Frost Damage to Crops
A September 15 frost hit some northern Iowa fields, causing damage to corn and soybean fields alike, especially fields that were already experiencing some type of stress. Yield reductions caused by the frost will depend on the maturity of the crop but across the board damage does not seem significant, according to ISU Extension Corn Agronomist Roger Elmore. He reminds producers that frost damaged crops will have changes in drydown rate and test weights
Does Corn Lose Drymatter After Physiological Maturity? No
By Roger Elmore, Department of Agronomy
Iowa's corn this year reached dent (R5) development stage on pace with that of 2010, but well ahead of normal (see NASS report). Some combines are rolling across Iowa's 14 million plus acres of corn; others will roll soon. Harvest begins. Fall approaches.
New Publication Helps Farmers Manage Energy Used for Corn Drying
When corn harvesting conditions allow optimal time for in-field drying, taking full advantage can reduce on-farm energy consumption. A new publication from Iowa State University Extension and Outreach explains the basic principles of energy management for grain drying.
Harvest Update - It's that Time Again
Grain quality this year should be good, but not exceptional. Stresses will cause variability. Grain will be warm coming out of the field; both corn and beans will need to be cooled immediately after harvest. (NOTE: This article was updated with correct hybrid numbers on 09/15/2011, after publication.)
Managing Soil by the Inches
We have great soil resources in Iowa and must manage our soil and keep it in its unique and productive condition. We, too, need to manage it by the inch in order to have healthy, productive people and a safe environment.
Soil Management Decisions This Fall
One thing farmers need to consider before attempting any tillage this fall is whether they need to do any - considering the input cost and potential damage to soil quality and productivity.
Comparing Nematode Management Products on Corn in Strip Trials
Many growers and agribusiness personnel are conducting corn strip-trial comparisons of nematode seed treatments and soil-applied nematicides in growers' fields. University nematologists recently published guidelines and advice on how to collect nematode data from such strip trials.