Table 3.
Historical yield reported by farmers, target yield with field-specific nutrient management through Nutrient Manager for Rice (NMR) recommendations, and the measured yield attained with NMR, expressed as a percentage of the target yield, in three rice-growing seasons in Tamil Nadu, India
| Parameter | Kuruvai | Samba | Thaladi |
|---|---|---|---|
| Reported historical yield (Mg ha−1) | |||
| Mean | 4.8 | 4.8 | 4.4 |
| Standard deviation | 0.8 | 0.8 | 0.6 |
| Range | 3.6–6.1 | 3.6–6.4 | 3.6–5.6 |
| NMR target yield (Mg ha−1) | |||
| Mean | 5.4 | 5.8 | 5.8 |
| Standard deviation | 0.3 | 0.4 | 0.3 |
| Range | 4.6–6.1 | 5.5–6.9 | 5.2–6.2 |
| NMR measured yield (% of target yield) | |||
| Mean | 98 | 91 | 67 |
| Standard deviation | 10 | 12 | 14 |
| Range | 78–113 | 57–114 | 47–100 |