From: Effect of work schedule design on productivity of mechanised harvesting operations in Chile
Category | Sub-category | Hours worked per day | Average ** Productivity (m3 hr-1) | Standard error productivity (m3 hr-1) | Change in productivity relative to 9-hour work day (%) |
---|---|---|---|---|---|
Season | Winter | 9 | 24.5 a | 0.8 | 0 |
 |  | 12 | 22.9 b | 0.1 | −7 |
 |  | 16 | 20.3 c | 0.1 | −17 |
 |  | 18 | 20.1 c | 0.1 | −18 |
 | Summer | 9 | 22.3 a | 0.8 | 0 |
 |  | 12 | 19.4 b | 0.1 | −13 |
 |  | 16 | 18.2 c | 0.2 | −19 |
 |  | 18 | 17.3 d | 0.1 | −23 |
Forest Class* | A | 9 | 25.0 a | 1.8 | 0 |
 |  | 12 | 25.0 a | 0.3 | 0 |
 |  | 16 | 20.0 b | 0.5 | −20 |
 |  | 18 | 18.0 c | 0.5 | −28 |
 | B | 9 | 24.0 a | 0.7 | 0 |
 |  | 12 | 24.0 a | 0.1 | 0 |
 |  | 16 | 21.3 b | 0.1 | −11 |
 |  | 18 | 19.3 c | 0.1 | −19 |
 | C | 9 | 22.3 a | 0.9 | 0 |
 |  | 12 | 17.4 b | 0.1 | −22 |
 |  | 16 | 16.4 c | 0.2 | −26 |
 |  | 18 | 16.4 c | 0.3 | −26 |
Species | E. globulus | 9 | 23.0 a | 1.8 | 0 |
 |  | 12 | 16.3 b | 0.1 | −29 |
 |  | 16 | 15.5 b | 0.4 | −33 |
 |  | 18 | 15.5 b | 0.8 | −33 |
 | E. nitens | 9 | 23.4 a | 0.6 | 0 |
 |  | 12 | 22.7 a | 0.1 | −3 |
 |  | 16 | 19.8 b | 0.1 | −16 |
 |  | 18 | 18.6 c | 0.1 | −21 |