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甜菜移栽的目的是延长生长期,早期得到更好的叶面积系数,更多的把太阳幅射能转变成糖,据1962年至1971年的研究,1962年增产糖为1.36吨/公顷;1963为3.90吨/公顷,1964年为1.75吨/公顷;据Holmes等的报导,1966至1971年移栽甜菜的产糖变化幅度为0.50至0.90吨/公顷,最好的增产出现在4月中旬移栽,平均产糖增加0.9吨/公顷,认为移栽增产的值不经济。比利时1974年将3月田间播种和4月初移栽进行比较,移栽增产糖2.15吨/公顷,认为2—4对真叶移栽比子叶期好。日本1980年移栽甜菜达92%,增产量为10至12吨/
The purpose of beet transplanting is to prolong the growth period, obtain better leaf area coefficient in the early stage, and more convert the solar radiation energy into sugar. According to the study from 1962 to 1971, the sugar increased by 1.36 tons / ha in 1962; 1963 to 3.90 tons per hectare, and 1964 to 1.75 tons per hectare. According to Holmes et al., The sugar content of sugar beet transplanted from 1966 to 1971 ranged from 0.50 to 0.90 tons per hectare. The best increase occurred in mid-April Transplanting, the average sugar production increased 0.9 tons / hectare, that the value of transplanting increased production is not economical. In 1974, Belgium compared the transplanting in March with that in early April, and transplanting increased sugar by 2.15 tons / ha. In 1980, Japan planted 92% of the sugar beets and increased the output by 10-12 tons /