TY  - REP
AU  - Darwich,N.A.
ED  - 9. Reunion Argentina de la Ciencia del suelo. Parana, Entre Rios (Argentina). 15-21 Sep 1980
TI  - Research methodology in soils fertility, national and international achievements
U1  - 83-870645 
PY  - 1981///
KW  - Fertilizers
KW  - AGROVOC
KW  - Soil fertility
N1  - 27 ref
ER  -