Table 3.
Partial factor productivity (PFP) and agronomic efficiency (AE) of N and P in sole cereal and in intercropping with pigeonpea with either half or the full dose of fertilizer recommended for the cereal in Mozambique, Tanzania, and Kenya.
| Nutrient | Country | Treatment | PartialFactorProductivity* | Agronomic Efficiency ** |
|---|---|---|---|---|
| Nitrogen | Mozambique | Intercrop + Half | 148.3 (137.7–158.9) | 47.1 (38.0–56.2) |
| Intercrop + Full | 42.9 (26.1–59.7) | 16.6 (0.4–56.2) | ||
| Sole maize + Full | 34.6 (26.7–42.5) | 14.4 (7.6–21.2) | ||
| Tanzania | Intercrop + Full | 52.3 (51.2–53.5) | 25.5 (24.0–26.9) | |
| Sole maize + Full | 50.4 (48.4–52.3) | 25.1 (22.4–27.8) | ||
| Kenya | Intercrop + Half | 63.9 (54.2–73.6) | 22.9 (13.3–32.5) | |
| Intercrop + Full | 35.0 (25.3–44.8) | 14.5 (5.0–24.1) | ||
| Phosphorus | Mozambique | Intercrop + Half | 145.7 (130.9–160.4) | 61.4 (46.7–76.1) |
| Intercrop + Full | 123.9 (100.4–147.4) | 48.7 (22.5–75.0) | ||
| Sole maize + Full | 84.8 (73.7–95.8) | 35.7 (24.7–46.7) | ||
| Tanzania | Intercrop + Full | 157.0 (153.6–160.4) | 76.4 (72.1–80.7) | |
| Sole maize + Full | 151.1 (145.2–157.0) | 75.3 (67.3–83.3) | ||
| Kenya | Intercrop + Half | 191.7 (162.5–220.9) | 68.7 (39.9–97.4) | |
| Intercrop + Full | 105.1 (75.9–134.3) | 43.6 (14.9–72.3) |
*
Partial factor productivity is given in kg grain kg−1 of applied N or P.
**
Agronomic efficiency is given in kg grain increase kg−1 of applied N or P. Figures in parentheses represent 95% confidence limits