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三、气候因素对甜菜生长发育的影响无霜期第一年生甜菜栽培的目的是获得营养器官,其生育后期具有较强的抗寒力,因此在无霜期较短的地区,亦适于栽培甜菜,并能获得高产,此点对于内蒙古西部海拔一千米以上的高原地区作物配置有重要意义。在内蒙西部区平均无霜期130天左右,而甜菜生育期为160余天,其中20％以上的生育期是在有霜期内。
Third, the climate factors on the growth and development of sugar beet The first year of frost-free beet cultivation is intended to obtain vegetative organs, its late growth has a strong cold hardiness, so in the frost-free period shorter areas, is also suitable for cultivation of sugar beet, and can be obtained High yield, this point for the western Inner Mongolia elevation of more than one thousand meters plateau region crop configuration is of great significance. In Inner Mongolia, the average frost-free period is about 130 days, while the growth period of sugar beet is more than 160 days, of which more than 20% of the growth period is in the frost-period.