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通过比较国内外多种积温计算方法造成的结果差异 ,推荐一种有较强生物学意义和普适性的积温计算方法 ,并以此计算了不同播期、不同品种、不同密度以及不同水肥管理条件下夏玉米各生育阶段 ,从出苗到各叶片完全展开以及各叶片生活期的积温 .讨论了影响植株及叶片生长发育期积温稳定性的主要因子 ,并模拟了单株出叶速度与出苗后温度累积以及叶片生活期积温需求与叶龄的定量关系 .
By comparing the results of different accumulated temperature calculation methods at home and abroad, a calculation method of accumulated temperature with strong biological significance and universality is recommended. Based on this, a calculation method of accumulated temperature with different sowing dates, different varieties, different densities and different water and fertilizer management Under the conditions of the growth stage of summer maize, from the emergence to the full development of leaves and the accumulation of temperature during the life of the leaves.The main factors that affect the stability of plant and leaf temperature during growth and development were discussed, and the leaf emergence rate and emergence The Relationship Between Temperature Accumulation, Leaf Temperature Demand and Leaf Age.