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在一定的栽培条件下,任何一个品种都有一个合理的密植范围。不同的玉米杂交种获得高产所要求的密植范围是有差别的。决定密植范围大小的主要因素,除土地条件和栽培技术外,从种子角度来说,我认为主要是玉米杂交种的株型。所以说,创造具有株型收敛、紧凑、高低适中、叶片上举等特点的株型,是继续提高玉米杂交种产量的重要途径。
Under certain cultivation conditions, any one species has a reasonable range of close planting. There is a difference in the range of densification required to achieve high yields for different maize hybrids. In addition to the land conditions and cultivation techniques, the main factor that determines the size of the densely populated areas is, from the seed point of view, mainly the plant type of the maize hybrid. Therefore, to create a type with plant type convergence, compact, high and low, the leaves and other characteristics of the plant type, is an important way to continue to increase the yield of corn hybrids.