To investigate the effects of different intercropping methods of lablab bean （Dolichos lablab L.） and silage maize （Zea mays L.） on grass production performance and forage quality， a randomized block design was adopted in this experiment， and two mixed sowing methods were set up， peer mixed sowing （T₀： Mono-cropping of maize； T₁： silage maize+1 seed of lablab bean hole sowing； T₂： silage maize+2 seeds of lablab bean hole sowing； T₃： silage maize+3 seeds of lablab bean hole sowing） and inter row mixed sowing （X₀： Mono-cropping of maize； X₁： silage maize+15 kg·hm^-2 lablab bean； X₂： silage maize+22.5 kg·hm^-2 lablab bean， X_3： silage maize+30 kg·hm^-2 lablab bean）. The results showed that the stem diameter of silage maize under peer mixed sowing （T₁， T₂， and T₃） was significantly increased by 13.9%， 15.0%， and 26.4%， respectively， compared to that of maize monoculture. For total dry matter， there was no significant difference in peer mixed sowing T₁ compared to maize monoculture， while both mixing treatments （T₂ and T₃） were significantly lower compared to maize monoculture. There was no significant difference in inter row mixed sowing of X₁ and X₂ compared to maize monoculture， while X₃ treatment was significantly lower than maize monoculture. In inter row mixed sowing， the crude protein content of X₁ and X₂ was significantly increased by 27.5% and 57.0%， respectively， compared to that of X₀. In summary， it is recommended that silage maize inter-row mixing of 22.5 kg·hm^-2 （X₂） lablab beans can be used as a suitable mixing method in the northern part of Shaanxi Province.

Lablab bean  /  Silage maize  /  Mixed sowing  /  Yield  /  Forage quality