| 氮·磷·钾对红稗株高的影响 |
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| 引用本文： | 胡章凯,舒中兵,宋成孝,段明禹,罗希榕,杨秀伟.氮·磷·钾对红稗株高的影响[J].安徽农业科学,2014(13):3969-3970. |
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| 作者姓名： | 胡章凯 舒中兵 宋成孝 段明禹 罗希榕 杨秀伟 |
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| 作者单位： | 遵义市农业科学研究院; |
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| 基金项目： | 红稗品种提纯复壮及高产栽培技术研究(遵市科合农字【2012】2号) |
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| 摘 要： | 目的]为了研究氮、磷、钾肥对红稗植株株高的影响.方法]运用三因素二次回归饱和D-最优设计方案.结果]氮、磷、钾肥对植株株高的影响为磷肥（X2）＜钾肥（X3）＜氮肥（X1）.从提高红稗植株株高的角度出发,应将磷肥作为首要因素考虑.通过主效应分析,得到纯氮45.45 kg/hm^2、纯磷62.55 kg/hm^2、纯钾52.65 kg,/hm^2时,株高分别达到最大值,即（y）（x1,0,0）=83.34 cm,y（0.x2.0）=83.87cm,（y）（0,0,x3）=83.48 cm.结论]当植株株高达到最高值时,氮、磷、钾肥的最佳组合分别为45.30、61.65、50.85 kg/hm^2.
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| 关 键 词： | 氮肥 磷肥 钾肥 红稗植株 株高 |
Effects of Nitrogen,Phosphate and Potash on Height of Hongbai Plants |
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| Institution: | HU Zhang-kai;SHU Zhong-bing;Zunyi Institute of Agriculture; |
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| Abstract: | Objective ] The research aimed to study the influence of nitrogen, posphorus and potassium on the height of Hongbai. Method ] The design of a three-factor quadratic regression saturation D-optimum was adopted. Result ] The amount of phosphorus had more influence on height of Hongbai than that of potassium and nitrogen. From the perspective of plants height of Hongbai, the first factor was phosphate. The main effect analysis showed nitrogen was about 45.45 kg/hm^2, phosphate was about 62.55 kg/hm^2 and potash was about 52.65 kg/hm^2. The plants height of Hongbal was 83.34, 83.87 and 83.48 cm. Conclusion] The plants height of Hongbai reached the highest when nitrogen was 45.3 kg/hm^2, phosphate was 61.65 kg/hm^2 and potash was 50.85 kg/hm^2. |
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| Keywords: | Nitrogen fertilizer Phosphate fertilizer Potash fertilizer Hongbai plant Plant height |
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