2013-2014年鲁西南冬小麦增产的农业气象条件分析

Agrometeorological Conditions of Increased Winter Wheat Production from year 2013 to 2014 in Southwest of Shandong Province

统计2013~2014年鲁西南冬小麦主要发育期间≥0℃积温、降水和光照等气象资料,并与常年及去年同期值进行分析比较,得出气象条件对冬小麦产量的影响及增产的有利因素。结果表明:冬小麦播期适宜,壮苗越冬,春季农田墒情较好;冬小麦生长后期低温,灌浆期较长是冬小麦增产的主要原因;后期的干热风对产量影响较小,整个生育期农业气象条件较好,2014年鲁西南冬小麦增产。

The meteorological data of winter wheat during the main period of wheat growth from 2013 to 2014,consisting of ≥0℃ accumulated temperature,precipitation and light,is analyzed and compared with the data from previous years and the last year. The statistics shows that the meteorological conditions affect winter wheat production,and good factors for increased production are discovered.More specifically,if the seeding dates are more appropriate and the seedlings are stronger in winter,then the soil moisture content of farmland is better in spring. The low temperature in the later stage of winter wheat growth and the long period of irrigation are the main reasons for increased production. The dry and hot wind in the later stage of winter wheat growth has little impact on the production. As the agrometeorological conditions in the whole stages of winter wheat growth in year 2014 is good,the winter production is increased in Southwest of Shandong Province.