Farmers Use Modern Equipment Ca. 1946Unknown - 1946
After World War II, advances in agricultural technology transformed American food production. Motorized tractors, ploughs, and combine harvesters; breakthroughs in soil science; and new chemical pesticides enabled farmers to produce much larger crops than they had in the past.
Publisher: [Place of publication not identified] : , WPA Film Library, , 
Copyright Date: ©1946
Characteristics: video file,rda 1 online resource (1 video file (0 min., 54 sec.)) : sound