Years | Treatments | Number of nodules per/plant | Weight of dry nodules (g/plant) | Plant biomass (g/plant) | |
2018 | PC | (29.1 ± 0.82)a | (1.55 ± 0.03)a | (34.36 ± 1.21)a | |
PE | (18.23 ± 0.82)b | (0.77 ± 0.03)b | (21.17 ± 1.21)b | ||
PN | (7.42 ± 0.82)c | (0.29 ± 0.03)c | (11.19 ± 1.21)c | ||
P-value | <0.001 | <0.001 | <0.001 | ||
2019 | PC | (32.55 ± 1.07)a | (1.67 ± 0.04)a | (36.84 ± 1.12)a | |
PE | (21.33 ± 1.07)b | (0.88 ± 0.04)b | (25.71 ± 1.12)b | ||
PN | (8.11 ± 1.07)c | (0.31 ± 0.05)c | (14.77 ± 1.12)c | ||
P-value | <0.001 | <0.001 | <0.001 | ||