不同施钾水平下甜菜干物质积累与分配规律的研究

摘要

Dynamic of dry matter accumulation and distribution of sugarbeet was research under different potassium application level，the results showed that dry matter of different organ increased with potassium level increasing，and the distribution of dry matter shows that the T/R diminiss during early growth period and increase at the middle growth period and diminiss at the later growth period again，the results showed that potassium fertilizer accelerate dry matter distribute into the centre of every growth period in sugarbeet.%在不同施钾水平下对甜菜干物质积累及分配动态进行了研究,结果表明,甜菜各器官干物质积累量均随施钾水平提高而增加。干物质分配则随施钾水平的提高呈现生育前期冠/根比减小,生育中期增大,而生育后期又降低的规律。表明甜菜施用钾肥后促进了干物质生产及向各生育时期生长中心进行分配。