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通过设置蒜苗、甘蓝、豌豆、大豆、胡麻、小麦与玉米间套作,研究不同作物与玉米间作对玉米产量及生物量累积的影响。结果表明:除大豆/玉米间作模式外,其他模式土地当量比(LER)均大于1,表现出明显的间作产量优势,不同作物与玉米的共生期越短,其模式的LER越大;相对于单作玉米,与蒜苗、甘蓝、豌豆间作的玉米穗粒数和百粒重均显著提高;与大豆间作的玉米百粒重虽显著提高,但穗粒数提高不显著,与胡麻和小麦间作的玉米各产量构成因素均有提高,但不显著。玉米的生物量累积符合logistic增长模型,相比单作玉米,与蒜苗、甘蓝间作的玉米在播后66～86d后生物量累积高于单作,与大豆间作,共生期玉米生物积累量始终低于单作;与豌豆、小麦、胡麻间作,间作玉米的生物积累量转折点分别为玉米播后106、86、75d。
By setting garlic, cabbage, peas, soybean, flax, wheat and corn intercropping, intercropping with different crops and corn on maize yield and biomass accumulation. The results showed that except for the soybean / maize intercropping model, the LERs of other models were greater than 1, showing obvious intercropping yield superiority. The shorter the intergrowth period of different crops and maize, the greater the LER of the model; The grain number per ear and 100-grain weight of maize between single-crop corn and garlic seedlings, cabbage and pea all increased significantly. Although the 100-grain weight of maize intercropped with soybean increased significantly, the grain number per spike increased insignificantly and the intercropping with flax and wheat The yield components of corn increased, but not significantly. The biomass accumulation of maize accorded with the logistic growth model. The biomass of maize intercropped with garlic and cabbage was higher than that of monoculture after 66-86 days after sowing, compared with that of intercropping with soybean In monoculture, the turning points of bioaccumulation between intercropping corn and pea, wheat and flax were 106, 86 and 75 days after sowing.