寒地水稻钾肥不同用量试验研究  

Experiment to Study the Different Dosage of Potash Fertilizer on Rice in Cold Area

作　　者：袁亚莉[1] 王安东[1] 

机构地区：[1]黑龙江省农垦科学院水稻研究所,黑龙江佳木斯154007

出　　处：《北方水稻》2011年第1期18-22,26,共6页North Rice

摘　　要：通过对不同水平的钾肥试验,对水稻关键生育期的相对叶绿素含量、干重、叶面积指数及产量进行调查,试验结果表明:产量呈抛物线型变化,随着钾肥施用水平的升高,垦粳1号和空育131的产量先逐渐增大,到达3水平以后开始下降。综合各项指标,佳木斯地区钾肥最佳用量为11.04 kg/667 m2。The relative chlorophyll content,dry weight,leaf area index and yield at the key growth period were researched by the test of potash fertilizer.The results showed that the yield shows the pattern of parabola along with the rise of fertilizer rate.The yields of Kenjing1 and Kongyu131 gradually increased at first,then decreased when the degree reach 3.It researched that the optimum values of potash fertilizer was 11.04 kg/667 m2 based on the indexes.

关 键 词：钾肥 相对叶绿素含量 叶面积指数 产量 最佳施钾水平 

分 类 号：S511.062[农业科学—作物学]