气象条件对菏泽夏玉米生长发育的影响

Effects of Meteorological Conditions on the Growth and Development of Summer Corn in Heze

摘要: 根据菏泽夏玉米自身生长的特点，并结合生长发育的农业气候指标，运用菏泽地面气象观测站提供的气温、降水和日照资料，分析了夏玉米各生育期(播种期、苗期、拔节期、抽雄吐丝期、灌浆成熟期)气象条件影响的利弊程度，结果表明：2017年夏玉米全生育期内积温(≥0℃)比常年同期平均值偏多179.2℃，降水比常年同期偏多13.6％，日照时数比常年同期偏多122.3小时。夏玉米整个生育期内热量丰富、降水偏多、光照充足，气象条件对夏玉米的生长发育和产量形成较为有利。

Abstract: According to the characteristics of the growth of summer maize in Heze, combining the agricultural climate index of the growth and development, using the data of air temperature, precipitation and sunshine provided by Heze meteorological observatory, the pros and cons of meteorological conditions are analyzed of the growth period (sowing, seedling, jointing, tasseling and filling stage) of the summer maize. The results show that the accumulated temperature (≥0˚C) during the whole growth period of the summer maize in 2017 is 179.2˚C higher than the average value of the same periods of the previous years; the precipitation is 13.6% more than that of the same period of the previous years; and the sunshine is 122.3 hours more than that of the same period of the previous years. The heat, precipitation and the sunshine of the summer maize during the whole growth period are all abundant. Thus the meteorological condition is much favorable to the growth and development and the formation of the yield of the summer maize in Heze.