| 不同施钾水平春玉米对钾的吸收·积累与分配 |
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| 引用本文： | 李可,其其格,李刚,李春艳,曹国军.不同施钾水平春玉米对钾的吸收·积累与分配[J].安徽农业科学,2010,38(18):9455-9456,9495. |
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| 作者姓名： | 李可 其其格 李刚 李春艳 曹国军 |
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| 作者单位： | 吉林农业大学,吉林长春,130118;吉林省柳河县农业技术推广中心,吉林柳河,130012;吉林省通化县农业技术推广中心,吉林通化,134110 |
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| 摘 要： | 目的]研究春玉米对钾素的吸收、积累与分配规律,为有效施用钾肥,促进产量增长提供理论依据。方法]以先玉335为材料,设置K0（不施用钾肥）、K1（施用K2O100 kg/hm2）、K2（施用K2O200 kg/hm2）、K3（施用K2O300 kg/hm2）4个处理,进行田间小区试验,研究钾素在春玉米不同生育时期的动态变化。结果]不同施钾处理钾素吸收、积累与分配规律基本一致,春玉米生育前期钾素积累量为K3〉K2〉K1〉K0,生育后期则为K2〉K3〉K1〉K0。结论]春玉米对钾素的吸收不随施钾量的增加而提高,过量施用钾肥不是提高玉米产量的有效途径。
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| 关 键 词： | 高产 春玉米 钾 |
Absorption, Accumulation and Distribution of Potassium in Spring Maize under Different K-fertilizer Levels |
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| LI Ke et al.Absorption, Accumulation and Distribution of Potassium in Spring Maize under Different K-fertilizer Levels[J].Journal of Anhui Agricultural Sciences,2010,38(18):9455-9456,9495. |
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| Authors: | LI Ke |
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| Institution: | LI Ke et al (Jilin Agricultural University,Changchun,Jilin 130118) |
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| Abstract: | Objective] The experiment aimed to study the regularity of absorption,accumulation and distribution of potassium in spring maize under different treatments of K-fertilizer and provide theoretical foundation for effective application of K-fertilizer to improve the production of maize.Method] Using Xianyu 335 as material,four treatments were set up for field plot test,including K0(no K fertilizer),K1(applying 100 kg/m2 K2O,K2(applying 200 kg/m2 K2O),K3(applying 300 kg/m2 K2O).The dynamic changes of potassiu... |
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| Keywords: | High production Spring maize Potassium |
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