How have farm practices in your community changed during the last 25 years? New machines, new crops, fertilizers, new management practices- farming has had quite a "face lifting" in that time.
Rohwer, Robert A.
"How New Practices Spread,"
Iowa Farm Science: Vol. 4
, Article 6.
Available at: https://lib.dr.iastate.edu/farmscience/vol4/iss1/6