v.21. .

| Technical Notes |
| Research advances Clean green manual cutting of sugar cane |
| Research notes Sugarcane biomass as a primary energy source |
| Report Climatological summary. Automated meteorological network |
| Comments Variety CC 89-2000 at the Risaralda Sugar Mill Areas of influence of the automatic meteorological network |
| General Information Specialized services for CENICAÑA donor growers |