选用三个不同生态类型大豆品种,同作分期播种。从物候期、生长率、生长曲线及产量等方面,研究品种类型与气候资源的关系,并建立了有关的数学模型。试验表明:种子萌发阶段,出苗时间取决于土壤温度和湿度,生长阶段,生长率和温度呈线性关系,土壤水分在凋萎湿度到田间最大持水量范围内温度起主导作用;籽粒形成阶段,粒重与光、温、水的相关程度均提高,此期间降水、积温和太阳辐射对产量形成有重要意义。不同生态类型品种在这方面的反应程度有所不同。分析了不同熟期品种的播期与产量的关系。从不同播期间的产量差异中可以看出:在不同气候地带的生育期限中,对不同熟期品种客观上存在着一个气候优势段落。适宜播期的含义,应是使某一品种的生命起止期与其气候优势段落相一致。 Selection of three different types of ecological soybean varieties, sowing the same stage. From the aspects of phenology, growth rate, growth curve and yield, the relationship between variety types and climatic resources was studied and related mathematical models were established. The results showed that the seed germination stage and the emergence time depend on the soil temperature and humidity, the growth stage, the growth rate and the temperature. The soil moisture plays a leading role in the temperature range from the wilting humidity to the field maximum water holding capacity. In the grain forming stage, The correlation between heavy and light, temperature and water are all improved. During this period, precipitation, accumulated temperature and solar radiation have important significance on yield formation. The response of different ecotypes in this area is different. The relationship between sowing date and yield of different maturity cultivars was analyzed. It can be seen from the differences in yield between different sowing dates that there is objectively a climate-dominant passage for different maturing varieties in the growth period of different climatic zones. The meaning of suitable sowing date should be to make the end of life of a species consistent with its climatic advantages.