Table 3.
The grain and above-ground biomass (kg/ha) difference in response to P fertilization between maize intercropped with faba bean and maize intercropped with wheat (Field Study 3)
| Rate of P2O5 application, kg/ha | Maize production, kg/ha |
% increase | P | |
|---|---|---|---|---|
| Intercropped with faba bean | Intercropped with wheat | |||
| Grain yield | ||||
| 0 | 12,457 ± 2,026 | 9,256 ± 1,225 | 35 | 0.0792 |
| 37.5 | 12,828 ± 875 | 9,165 ± 2,432 | 40 | 0.0701 |
| 75 | 12,322 ± 665 | 9,883 ± 697 | 25 | 0.0118 |
| 112.5 | 10,967 ± 422 | 11,611 ± 686 | −6 | 0.2386 |
| 150 | 12,095 ± 721 | 12,426 ± 809 | −3 | 0.6256 |
| Above-ground biomass | ||||
| 0 | 22,936 ± 205 | 17,374 ± 2,328 | 32 | 0.0146 |
| 37.5 | 24,141 ± 2310 | 15,586 ± 2,758 | 55 | 0.0146 |
| 75 | 22,766 ± 3376 | 19,207 ± 1,430 | 19 | 0.0376 |
| 112.5 | 21,232 ± 904 | 18,900 ± 1,595 | 12 | 0.8991 |
| 150 | 21,498 ± 975 | 20,005 ± 664 | 7 | 0.3768 |
Values for yields and biomass are presented as means ± SD (n = 3). The percent increase is calculated as yield (grain or biomass) of maize intercropped with faba bean − yield (grain or biomass) of maize intercropped with wheat]/yield (grain or biomass) of maize intercropped with wheat × 100.