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通过2002～2003年对青贮专用型玉米不同种植密度下,单株和群体叶面积、干物质积累及单位面积生物产量变化的研究,探讨单株和群体之间的相互影响。结果表明:青贮专用型玉米只有保持单株和群体之间的平衡,即在一定的密度下保持较高的单株生产力,方能获得高产稳产。青贮玉米适宜密度为6.75×104～8.25×104株/hm2,青贮玉米营养体产量最高达91125 0kg/hm2。
Through the study of leaf area, dry matter accumulation and biomass per unit area under different planting densities of special silage maize from 2002 to 2003, the interaction between single plant and population was explored. The results showed that only silage-specific maize maintained the balance between single plant and population, that is, maintained a high plant productivity at a certain density to obtain high-yield and stable yield. Silage corn suitable density of 6.75 × 104 ~ 8.25 × 104 plants / hm2, silage corn nutrient body yield up to 91125 0kg / hm2.