Points to consider for the implementation of effective evaluation process are presented. Although outdoor demonstrations are a traditional Extension methodology, few studies have documented the educational efficacy of forestry tours. An assessment of the educational effectiveness of Forest Stewardship demonstration in Pennsylvania found that demonstrations enhance learning and induce attitude shifts. Participants tested before the workshop, after an indoor session, and following the field tour scored differently on questions revealing their knowledge of forests and forestry, as well as their attitudes about timber harvesting and clearcutting. Acceptance of clearcutting as a viable forestry tool occurred only after participants toured the demonstration are, including its two-acre clearcut.
Demonstrations provide an excellent forum for addressing controversial issues.
In this system, soybeans are planted into wheat at or past the heading stage of growth. A modified relay intercropping system can effectively utilize farm labor, time and equipment, while at the same time reducing herbicide usage in the soybean crop. A descriptive study was conducted to measure the effects of variable wheat nitrogen fertilizer rates on soybean yield. The two year soybean yield in the MRI system average was 33.9 bushels per acre. There were significant differences in soybean yield between wheat nitrogen rates in 1995 only.