TY  - BK
AU  - Shenk,M.D.
ED  - Centro Agronomico Tropical de Investigacion y Ensenanza, Turrialba (Costa Rica). Dept. de Produccion Vegetal
TI  - Labranza minima y no labranza en sistemas de produccion de maiz (Zea mays) para areas tropicales humedas de Costa Rica
T2  - CATIE Serie Tecnica Boletin Tecnico
U1  - 87-002172 
PY  - 1983///
CY  - Turrialba (Costa Rica) :, 
KW  - Agricultural chemicals
KW  - America
KW  - Animals
KW  - Central America
KW  - Cereals
KW  - AGROVOC
KW  - Chemicophysical properties
KW  - Climate
KW  - Climatic zones
KW  - Costs
KW  - Crops
KW  - Cultivation
KW  - Economic plants
KW  - Environment
KW  - Environmental conditions
KW  - Feed crops
KW  - Feed grasses
KW  - Glumiflorae
KW  - Grain crops
KW  - Gramineae
KW  - Grasses
KW  - Industrial crops
KW  - Injurious factors
KW  - Methods
KW  - Monocotyledons
KW  - Noxious animals
KW  - Oil crops
KW  - Pests
KW  - Plants
KW  - Population
KW  - Site factors
KW  - Soil cultivation
KW  - Starch crops
KW  - Sugar crops
KW  - Weeds and weed control
N1  - Numerical data; 59 ref. Summaries (En, Es)
ER  -