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本文阐述了对秦皇岛地区平原春玉米的产量与主要气象因素(温、光、水)相关关系的分析,明确了影响玉米产量的关键气象因素及影响产量的关键时期;通过对本区两个玉米主栽品种的生长发育规律的研究,提出了高产栽培下的适宜指标;还阐述了采用多元二次回归正交旋转组合设计方法,以影响玉米产量的主要农艺措施为决策变量,得出的相应的数学模型,及筛选出的亩产500kg以上产量水平的优化农艺措施组合。
This paper analyzes the correlation between yield and main meteorological factors (temperature, light and water) of spring maize in plain of Qinhuangdao, clarifies the key meteorological factors affecting the yield of maize and the key period affecting the yield. By analyzing the relationship between two main maize Planting varieties of the law of growth and development, put forward the appropriate indicators of high-yield cultivation; also described the use of multiple quadratic regression orthogonal rotation combination design method to affect the yield of corn major agronomic measures as decision variables, the corresponding Mathematical model, and the selected combination of optimized agronomic measures for the output level above 500kg per mu.