免耕夏玉米施肥方式初探

Study on fertilizer placement style for zero tillage summer maize

  • 摘要: 试验分析了5种免耕播种夏玉米施肥方式对植株体内叶绿素含量、植株形态构成、产量及其形成相关因素的影响。结果表明,不等距间施肥方式效果最好,叶绿素含量达3.94mg/g,不同时期叶面积均最高,有利于全苗壮苗,增强抗旱能力,夏玉米产量最高达7646.3kg/hm2,增产幅度为35.23%。

     

    Abstract: The rational fertilization to summer maize under zero-tillage cultivation has been paid more and more attentions by farmers.Comparative experiments between no fertilization and five ways of fertilization under conditions of same fertilizer-rate and same management were conducted.Result showed that the unequivalent distance fertilization method was the best way for summer maize under zero-tillage.Under this condition,chlorophyll content was 3.94mg/g,leaf area was the largest and grain yield reached 7646.3kg/hm2,increased by35.23%.

     

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