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在黑土区耕层有效锌含量0.61ppm条件下,研究甜菜各营养生长期干物质和有效锌变化的结果,甜菜幼苗期吸收锌的强度最大:不同生长期吸收锌营养的速度同植株干物质增长是同步,其中块根糖分增长期吸收速度最快;甜菜吸收锌的数量,除幼苗期很少以外,其它三个营养生长期都保持较高的水平;幼苗期和叶丛快速生长期锌主要分配在地上部,块根糖分增长期和糖分积累期锌主要分配在地下部.
The results showed that the maximum absorption of zinc in beet seedling stage was the best when the content of available zinc in tillage was 0.61ppm in black soil region. The speed of zinc absorption in different growth stages was the same as that of plant dry matter Is synchronous, of which the tuber root sugar increased fastest absorption rate; sugar beet absorption of zinc, except for seldom outside the seedling stage, the other three vegetative growth stage are maintained at a high level; seedling stage and rapid growth of foliar zinc main distribution In shoots, root sugar increment and sugar accumulation were mainly distributed in the lower part of the ground.