TY  - REP
AU  - Havener,R.D.
TI  - Narrowing the gap between experiment stations yields and farmers fields
PY  - 1972///
CY  - Mexico, DF (Mexico)
PB  - Oficina de Estudios Especiales, 
KW  - Cooperative farming
KW  - Cultivation
KW  - AGROVOC
KW  - Extension activities
KW  - Farmers
KW  - Information flow
KW  - Mass media
KW  - Monitoring
KW  - Rural development
KW  - Training
KW  - Trials
KW  - Research institutions
KW  - Yields
ER  -