Table 7: Sensitivity of emergy requirements to alternative management (base data 100).

Scenario Lime Ash Sludge Base 100.0 106.0 124.4 + 100.0 105.9 124.3 − 99.3 105.3 123.4 − 99.0 105.0 123.4 + 98.4 104.3 122.7 − 97.9 103.3 119.9

†The increase of 10% in field efficiency was based on width, speed work, maintenance schemes and field shape. ‡Decrease machinery power in 10%. §Increase in 10% on the machinery life cycle. ¶Decrease in 10% in labor. ††Decrease in 10% on inputs used (purchased input evapotranspiration and seedling were kept the same).