Fig. 1

Yield and biomass net effect of maize and grass pea in response to three P treatments (P0-P2) and two water treatments (drought stress (DS) and well-watered (WW)) under three cropping patterns (no barrier, nylon barrier and solid barrier) in maize-grass pea intercropping system. n = 5, bars with different lowercase letters (a, b) indicate significant difference (P < 0.05). W: water treatment, P: phosphorus treatment, C: cropping pattern. ***, **, *, ns, significant difference at 1‰, 1%, 5% and not significant at 5% level, (the same in the below)