气象条件是影响小麦产量的重要因素之一。研究光、热、水分等气象因子对小麦产量的影响,从而采取相应的农业技术措施提高小麦产量,有着十分重要的实践意义。为此,作者等在1962—1964年进行了小麦分期播种試驗,試驗結果表明,小麦各个生育阶段对气象要素的要求定量很不相同。从小麦产量与气象要素之間的相关系数(表一)可以看出,分蘖到拔节 Meteorological conditions are one of the important factors affecting wheat yield. It is of great practical significance to study the effects of meteorological factors such as light, heat and moisture on the yield of wheat and take appropriate agricultural measures to increase the yield of wheat. To this end, the author conducted wheat staging trials in 1962-1964. The results showed that the quantitative requirements for meteorological factors were very different at different growth stages of wheat. From the correlation coefficient between wheat yield and meteorological factors (Table 1), we can see that tillering to jointing