Table 2 Yield and environmental performance of high-yielding farmers in the three main production sub-regions of eastern Uruguay compared to the regional average. *The values within parentheses represent the relative change compared to the regional average in percentage.
From: Towards actionable research frameworks for sustainable intensification in high-yielding rice systems
Variables | Regional average | High-yielding farmers | ||
|---|---|---|---|---|
Trienta y Tres | Cebollati | India Muerta | ||
Yield (kg ha −1) | 7900 | 8986 (13.7%)* | 9025 (14.2%) | 9025 (14.2%) |
NUE (kg yield kg applied N−1) | 121.68 | 128.37 (5.5%) | 127.83 (5.1%) | 127.83 (5.1%) |
Net energy yield (GJ ha −1) | 102.94 | 119.84 (16.4%) | 118.86 (15.5%) | 117.20 (13.8%) |
Energy Use Efficiency (kg yield MJ−1) | 0.4609 | 0.5366 (16.4%) | 0.4927 (6.8%) | 0.4519 (−2%) |
Agrochemical contamination risk (PAF m3) | 15608.75 | 352.82 (−97.7%) | 236.88 (−98.5%) | 11815.19 (−24.3%) |
Yield-scaled Agrochemical contamination risk (PAF m3 kg yield−1) | 1.96 | 0.04 (−98%) | 0.02 (−99%) | 1.31 (−33.2%) |
Carbon Footprint (kg CO2 eq. ha−1) | 7524.17 | 7636.49 (1.5%) | 7621.2 (1.3%) | 7731.33 (2.8%) |
Yield-scaled C footprint kg (CO2 eq. kg yield−1) | 954.75 | 849.82 (−11%) | 844.45 (−11.5%) | 856.70 (−10.3%) |
