Charles R Hurburgh

Dr. Charles R. Hurburgh, Charlie to most everyone, is a native Iowan from Rockwell City (Iowa, USA). He continues to operate the family farm, and is a professor of Agricultural and Biosystems Engineering at Iowa State University. He has a bachelor's degree, master's degree, and doctoral degree from Iowa State, and specializes in quality management systems with related traceability, measurement, and sensor technologies. He is the author of more than 250 technical and general articles on grain quality, measurement science, and grain marketing.


Dr. Hurburgh manages the Iowa State Grain Quality Research Laboratory and the extension-based Iowa Grain Quality Initiative. He serves on several advisory and editorial committees related to quality management standards and food safety regulations. Most recently his extension group was asked by the FDA to create training materials for inspections of bulk grain and grain processing facilities under the Food Safety Modernization Act. 

Charles Hurburgh photo
October 17, 2019 1:41 PM

Temperatures fell into the low 30’s and upper 20’s in most of Iowa over the weekend of October 11-13.  Because of the very late planting season, some crops were immature enough to be injured by the freezing temperatures. This ICM Blog will address frost damage concerns to soybeans.  

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Crop Production, Grain Handling and Storage
October 9, 2019 3:55 PM

An Iowa farmer sent me an email in anticipation of the freeze this weekend and I suspect many farmers are in the similar position of having mature crops with replant that may not be mature yet. Read more about my thoughts on how to handle this situation below.

Question:...

Crop Production, Grain Handling and Storage
October 7, 2019 3:25 PM

A portion of Iowa’s corn crop is likely to experience a frost before naturally reaching maturity as a result of cool temperatures later this week. Natural maturity is often determined when a black layer is formed at the kernel tip. At this timeframe grain moisture is typically 28–35% moisture....

Crop Production, Grain Handling and Storage
October 26, 2017 3:40 PM

Up to this point in the harvest season we have been short on grain dry down and cooling weather. Corn moisture percentages have been hanging in the 20’s, sometimes in the upper 20’s. This past week eliminated much of the moisture, but favorable field dry down weather rarely continues into...

Grain Handling and Storage