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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (17): 240-244.

所属专题： 玉米； 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

玉米空杆气象成因分析

肖开能 张晓东 李绍明 杨建宇 杨扬 米春桥   

  • 收稿日期:2011-01-12 修回日期:2011-03-10 出版日期:2011-07-15 发布日期:2011-07-15
  • 基金资助:

    基于GIS的作物（玉米）品种精细区划理论及方法研究

Effects of Meteorological Factors of Empty Corn

  • Received:2011-01-12 Revised:2011-03-10 Online:2011-07-15 Published:2011-07-15

PDF (PC)

947

摘要：

通过中国不同地区的18个气象台站春玉米空杆率和气象因子的相关分析和回归分析，解释气象因子对空杆率的影响程度以及因子间的相关关系，从而为控制或减轻玉米空杆的发生提供理论根据。结果表明，空杆率与苗期降水量大于25 mm天数（Xa3）、穗期积温（Xc5）呈显著正相关，与穗期降水量大于25 mm天数（Xc3）、乳熟期降水量大于0.1 mm天数（Xd2）和日平均气温（Xd4）呈显著负相关。回归分析的通径系数结果表明Xa3、Xd4在模型中显著性最高，Xc3、Xc5、Xd2的显著性较低。回归方程量化了玉米空杆率和气象因子的关系，以及气象因子对空杆率的影响程度，对减轻空杆损失和指导玉米品种推广有一定的指导意义。

关键词: 液相色谱-串联质谱法, 液相色谱-串联质谱法, 地克珠利, 残留, 消除规律

Abstract:

This article explain the influence of meteorological factors to the empty corn rate and the relationship between the factors through correlation analysis and regression analysis of 18 meteorological stations of spring maize empty corn rate and meteorological factors, so as to control or reduce the occurrence of empty corn and provide theoretical basis. Results show that the empty corn rate is in a significant positive correlation with seedling precipitation >25 mm days (Xa3), spike period accumulated temperature (Xc5); the empty corn rate is in a significant negative correlation with panicle stage rainfall >25 mm days (Xc3), ratooning buds of rain >0.1 mm days (Xd2) and the average daily temperature (Xd4). Regression analysis results show that the size coefficient Xa3, Xd4 in the model in significant highest, Xc3, Xc5, Xd2 significant is relatively low. Regression equation quantified empty corn rate and meteorological factors, and influence within meteorological factors, this conclusion could be used to alleviate empty corn loss and guiding corn variety extension.

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