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研究表明,气象因子与小麦产量密切相关。在与小麦产量相关的35个气象因子中有12个因子的相关系数达到了显著水平;其中灌浆期降水与冬小麦产量呈极显著相关,且直接通径系数最高,对小麦产量形成的贡献率最大;其次是拔节期降水量和返青期降水量;5月份的蒸发量与冬小麦产量密切相关,达到极显著水平,其对小麦产量形成起较大的负向作用;小麦越冬期间的气温也是不可忽视的气象因素。据此,在制定小麦生产管理计划时,应将以上因素作为考虑的重点。
Research shows that meteorological factors are closely related to wheat yield. Among 35 meteorological factors related to wheat yield, the correlation coefficient of 12 factors reached a significant level. Among them, precipitation at filling stage was significantly correlated with winter wheat yield, with the highest direct path coefficient and the largest contribution to wheat yield formation ; Followed by precipitation at jointing stage and precipitation during rejuvenation period; the evaporation in May was closely related to the winter wheat yield, reaching a significant level, which had a greater negative effect on the wheat yield formation; the temperature during winter wheat was also not negligible Meteorological factors. Accordingly, the above factors should be taken into consideration when formulating the wheat production management plan.