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甜菜含糖率年度间变异幅度较大,有的产区已达7度以上。吉林省洮安产区为高糖区,变幅较小,但也达到了4度。因此研究有关因素与糖分波动的关系,确立较为准确的糖分预测模型,不仅为甜菜科研和生产部门提供增糖措施的依据,也为甜菜糖厂提供精度的信息,以便加强管理,提高经济效益。影响甜菜含糖率的因素很多,其中包括气象因子、土壤肥力、害虫和病源微生物品种以及农业技术措施等。但对于一个较大产区的平均状况来讲,除气象因素和品种类型外,其它因素由于受社会生产力和科学技术水平的限制,短期内年度间变化较小,往往
The sugar content of sugar beet has a large variation in the year, and some producing areas have reached more than 7 degrees. Ji’an, Jilin Province, producing high-sugar areas, a smaller amplitude, but also reached 4 degrees. Therefore, to study the relationship between factors and sugar fluctuations and to establish a more accurate sugar prediction model not only provide the basis for sugaring measures for sugar beet research and production departments, but also provide precision information for sugar beet sugar factories in order to strengthen management and increase economic benefits. Many factors affect the sugar content of sugar beet, including meteorological factors, soil fertility, pests and pathogenic microorganisms and agricultural technology measures. However, for the average condition of a large producing area, except for the meteorological factors and the types of cultivars, other factors, due to the restriction of social productivity and science and technology, have less changes in the short-term years,