钾与甜菜产量形成的研究之三 钾对甜菜干物质积累分配及产量的影响  

Affection of potassium to sugarbeet dry material accumulation and distribution and yield

作　　者：曲扬[1] 丁伟[2] 曲文章[2] 

机构地区：[1]黑龙江旅游职业技术学院,黑龙江哈尔滨150086 [2]东北农业大学,黑龙江哈尔滨150030

出　　处：《中国甜菜糖业》2008年第3期4-8,共5页China Beet & Sugar

摘　　要：施钾有利于甜菜干物质积累,随着施钾量的增加,干物质积累亦增加,二者呈极显著的正相关,γ=0.9927**。钾对甜菜T/R值(冠根比)有调控作用。当甜菜进入块根增长期以后,T/R值随施钾量增加而降低,这有利于块根增长和糖分积累。施钾量与甜菜块根产量和含糖率均呈显著正相关,相关系数分别为γ=0.952*、γ=0.9504*,施钾量超过K100的处理后,甜菜产量、含糖率的差异均不显著,因此施钾量以K100为宜。Applying potassium is good for accumulation of sugarbeet dry matter, as application potasium content incresemerit as dry matter accumulation increase, they are significant positive correlation r = 0.9927^＊ ＊ . There is a regulation action of T/R value （crown and mot ratio）.When sugarbeet starts for mot enlarging time, T/R value brings down as follow as potasium increase, they are good for mot enlargement and sugar content accumulation. There are significant positive correlation between applying potassium content and sugarbeet mot yield and sugar content, correlation coefficient is r = 0.952 and r = 0.9509 respectively. As applying potassium content is more than K100 treatment, there are no significant difference between sugarbeet yield and sugar content, so applying pottasium content is best for K100.

关 键 词：甜菜 冠根比 块根产量 含糖率 

分 类 号：S566.3[农业科学—作物学]