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四川农业大学学报 ›› 1987, Vol. 5 ›› Issue (04): 331-336.doi: 10.16036/j.issn.1000-2650.1987.04.012

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运用回归方法研究汕优63优化配套

李崇云1, 张正伦1, 张正国2   

  1. 1. 雅安地区农业局;
    2. 名山县百丈镇农技站
  • 收稿日期:1987-04-02 出版日期:1987-12-31 发布日期:2017-04-22

A STUDY ON EXCELLENT MODEL OF MAIN CULTIVATED TECHNIQUE IN HYBRID RICE SHANYOU 63

Li Chongyun1, et al1   

  1. The Agricultural Bureau of Ya'an District, Ya'an, Sichuan, China
  • Received:1987-04-02 Online:1987-12-31 Published:2017-04-22

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摘要： 本文根据二次曲面混合设计法进行田间试验,研究了杂交水稻汕优63的种植密度(X1)、施N肥量(X2)和秧苗带蘖数(X3)与产量(y)之间的关系。其回归方程为:
?=455.27+11.86X1'+14.4X2'+8.89X3'+7.05X2'·X3'-9.06(X2')2-13.8(X3')2
[R=0.9843,S=13.80, Xi'=((Xi-minXi)/(maxXi-minXi))×4-2]
结果表明,在本实验条件下,获得高产的最佳组合是:栽植密度为2万窝/亩,施N肥量为10.3kgN/亩和2.62蘖/株。并且,与大田生产实际有相当高的吻合度。

关键词: 水稻, 回归, 栽培技术, 回归分析

Abstract: The relationships between plant density (X1), amount of N fertilizer applied (X2), tillering number of seedling (X3) and yield (y) in hybrid rice Shanyou 63 have been studied with quadratic mixture design of hyperbpoioid in this paper. The regression formula is obtained as follows: y=455.27+11.86X1'+14.4X2'+8.89X3'+7.05X2'·X3'-9.06(X2')2-13.8(X3')2
(R=0.9843,S=13.80, x'i=((xi-minci)/(maxxi-micxi))·4-2)
The results reveal that the best form of yield is:x1=20000 tillers mu-1; x2=10.35 kg N mu-1, and x3=2.62 tillers plant-1. Moreover, its practical consequences have been comfirmed by other experiments.

Key words: COWLAND RICE, REGRESSION, CULTURAL TECHNIQUE, REGRESSION ANALYSIS

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