| 运用回归方法研究汕优63优化配套 |
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| 引用本文： | 李崇云,张正伦,张正国.运用回归方法研究汕优63优化配套[J].四川农业大学学报,1987(4). |
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| 作者姓名： | 李崇云 张正伦 张正国 |
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| 作者单位： | 雅安地区农业局，雅安地区农业局，名山县百丈镇农技站 四川农业大学农学系五九级学生 |
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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(X_1)、施N肥量(X_2)和秧苗带蘖数(X_3)与产量(y)之间的关系.其回归方程为: ■=455.27 + 11.86X'_1 + 14.4X'_2 + 8.89X'_3 + 7.05X'_2·X'_3 - 9.06(X'_2)~2 - 13.8(X'_3)~2 (R=0.9843,S=13.80 X_i~'=x_i-mic x_i·4-2]/max x_i-mic x_i)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.
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| 关 键 词： | 水稻(49EJ) 回归(30R) 栽培技术(49EC) 回归分析(30R、69BH) 优化模式 栽植密度 秧苗分蘗数 |
A STUDY ON EXCELLENT MODEL OF MAIN CULTIVATED TECHNIQUE IN HYBRID RICE SHANYOU 63 |
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| Li Chongyun The Agricultural Bureau of Ya''''an District,Ya''''an,Sichuan,China.A STUDY ON EXCELLENT MODEL OF MAIN CULTIVATED TECHNIQUE IN HYBRID RICE SHANYOU 63[J].Journal of Sichuan Agricultural University,1987(4). |
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| Authors: | Li Chongyun The Agricultural Bureau of Ya'an District Ya'an Sichuan China |
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| Abstract: | The relationships between plant density (X_1), amount of N fertilizer applied (X_2), tillering number of seedling (X_3) 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 + 11.86X'_1 + 14.4X'_2 + 8.89X'_3 + 7.05X'_2·X'_3 - 9.06(X'_2)~2 - 13.8(X'_3)~2 (R=0.9843,S=13.80 X_i~'=x_i-mic x_i·4-2]/max x_i-mic x_i) The results reveal that the best form of yield is: x_1 = 20000 tillers mu~(-1); x_2 = 10.35 kg N mu~(-1), and x_3 = 2.62 tillers plant~(-1). Moreover, its practical consequences have been comfirmed by other experiments. |
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| Keywords: | COWLAND RICE REGRESSION CULTURAL TECHNIQUE REGRESSION ANALYSIS EXCELLENT MODEL PLANT DENSITY TILLERING NUMBER OF SEEDLING |
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