TY  - PRO
AU  - Violic Martinovik,A.D.
TI  - Labranza convencional y labranza de conservacion:  Definicion de conceptos
PY  - 1989///
KW  - Extension activities
KW  - Mexico
KW  - Soil conservation
KW  - Training
KW  - Zero tillage
KW  - Tillage
KW  - AGROVOC
KW  - CIMMYT
N1  - Tables, references p. 11
T2  - Seminario Labranza de Conservacion en Maiz, 11
ER  -