ASSIGNMENT 100% Extension

EDUCATION

Degree	Institution	Major Field of Study	Dates of Degree
Ph.D.	Iowa State University	Agricultural Engineering	8/91
M.S.	Iowa State University	Agricultural Engineering	11/75
B.S.	Iowa State University	Agricultural Engineering	11/73

PROFESSIONAL EXPERIENCE

Employer	Position	Nature of Position	Location	Dates of Employment
Iowa State Univ.	State Ext. Engineer	Extension	Ames, IA	5/87-present
Iowa State Univ.	Field Ext. Engineer	Extension	Council Bluffs, IA	9/75-4/87
Iowa State Univ.	Teach/Res. Asst.	Teaching/Research	Ames, IA	11/73-8/75
Caterpillar Trac.	Design intern	Design Engineer	Peoria, IL	5/73-8/73

PROFESSIONAL REGISTRATION

Registered professional engineer, Iowa and Nebraska

PROFESSIONAL AND SCIENTIFIC ORGANIZATIONS

American Association for the Advancement of Science
American Society of Heating, Refrigerating, and Air Conditioning Engineers
Alpha Epsilon
Gamma Sigma Delta
American Society of Agricultural Engineers
National Institute for Farm Safety
Epsilon Sigma Phi
Sigma Xi

SIGNIFICANT CONTRIBUTIONS

Research - Selected Peer-Reviewed Publications: (Total 1992-96: 5)

Schwab, C. V., A. R. Ralston, L. J. Miller, and H. M. Hanna. 1996. Comparison between perceptions of farm hazards and injury records in Iowa. Journal of Agricultural Safety and Health 1(4):241-248.

Hanna, H. M., S. W. Melvin, and R. O. Pope. 1995. Tillage implement operational effects on residue cover. Applied Engineering in Agriculture 11(2):205-210.

Hanna, H. M., S. J. Marley, D. C. Erbach and S. W. Melvin. 1994. Methods for measuring soil velocities caused by a sweep. Soil and Tillage Research 28(4):315-328.

Hanna, H. M., S. J. Marley, D. C. Erbach and S. W. Melvin. 1993. Change in Soil Microtopography by Tillage with a Sweep. Transactions of the ASAE 36(2):293-299.

Hanna, H. M., D. C. Erbach, S. J. Marley and S. W. Melvin. 1993. Comparison of Goryachkin Theory to Soil Flow on a Sweep. Transactions of the ASAE 36(2):301-307.

Extension

Row-crop cultivation: To increase effectiveness of cultivation and confidence in its use to reduce chemical application, two applied research projects were developed using $81,424 of competitive grant funds and attracting equipment loan and industry cooperation from two manufacturers. Results have been disseminated with 172 growers at field day demonstrations, 716 growers at winter expositions, and 142 agribusiness professionals at four shortcourses. A popular extension bulletin, developed from this research, has been revised and published twice; industry requested permission to print 5,000 additional copies for use with growers. A slide set was developed for use as an option with the private pesticide application program reaching 25,000 - 30,000 applicators.

Manure application equipment: To limit odor emission, nutrient loss, and burial of surface protecting residue during manure application an applied research project is underway using $28,194 of competitive grant funds and attracting equipment loan and industry collaboration with an Iowa manufacturer. Early results were incorporated into an electronic teaching lesson available through the extension departmental web-site.

Tillage/residue management: To assist producers adopting systems with high residue cover, research-based information was transferred and additional information developed from an applied research project. For conservation compliance, ten classroom and field training sessions were held for the Natural Resources Conservation Service with 834 participants. Planter clinics in producer machine sheds were held at 27 locations with 733 farmers. Five additional meetings with industry reached 526 farmers. Two bulletins and two videos were developed on machine adjustment. For CRP conversion to row crop, replicated field tillage trials were developed on two producer sites and a bulletin on tillage options was produced. Two field day demonstrations attracted 182 farmers.

Agribusiness outreach: To multiply outreach efforts, training of agribusiness professionals was conducted at Extension’s field education laboratory farm. During 1992 through 1996, 2258 agribusiness clientele were trained on tillage and planter adjustments. Field activities included small group sessions with participants receiving hands-on training such as measuring soil compaction and troubleshooting planter adjustment at the 27 schools. Presentations and papers were presented at five winter extension conferences in Iowa and adjacent states.

Chemical application: To improve agricultural chemical application and limit spray drift across large acreages, training has been targeted for custom applicators. In partnership with national and Iowa industry, 15 schools on selection and operation of application equipment for liquid and dry materials were taught for 860 ground applicators in Iowa and throughout the U.S. A program has recently been established with the Iowa legislature for pattern analysis with Iowa’s aerial applicators.