Fig. 9
Plant patterns and sampling points for the field experiment. a Sole maize; b Sole peanut; c Intercropping of maize and peanut; â– plant number per hole;
soil sample points; â–¡ plant sample area. SM: sole maize, SIM: the shared soil of sole maize, MIM: the middle row of intercropped maize, IM: intercropped maize, SP: sole peanut, SIP: the shared soil of sole peanut, MIP: the middle row of intercropped peanut, IP: intercropped peanut, II: the shared soil of intercropped maize and peanut