Mark Hanna

Agricultural and Biosystems Engineering

Articles by this author

As harvest approaches, propane is a key ingredient for anyone using a high-temperature system to dry corn. A case study conducted by Mark Hanna, agricultural and biosystems engineering specialist for Iowa State University Extension and Outreach, can help farmers as they plan for harvest and winter storage.

By: Mark Hanna and Dana Schweitzer

The costs associated with installing solar arrays have dropped over the last several years, making them much more cost effective to install on a farm or acreage. As they become more affordable, these solar arrays are becoming a viable source of energy for farmers, especially farmers who have large barns to ventilate in the summer or fans on grain bins.

By: Tom Miller and Jay Harmon and Mark Hanna

Researchers began collecting initial data last fall on university-owned farmland near Ames to quantify the impact of construction utilities equipment, field traffic and deep tillage on crop yield and soil compaction.

By: Mark Hanna and Ed Adcock and Mehari Tekeste

Most ATV and UTV injury events involve rolling and pinning or crushing the victim. Adding a liquid tank to an ATV or UTV changes the center of gravity, making the vehicle more top-heavy and easier to roll over.

By: Charles Schwab and Mark Hanna

If dry field conditions persist, the potential for combine and field fires this fall could be a problem. All it takes is a single high-temperature source in the engine area or an overheated bearing to ignite dry plant material.

By: Clarke McGrath and Mark Hanna