摘要
为促进糜子产业发展,利用自动气象观测站记录2015-2017年试验区生长季主要气象资料。通过对比分析3a生长季的活动积温、降雨量的变化情况,揭示活动积温和降雨量等气候条件对糜子倒伏的影响。结果表明:丰沛或正常年份的生长季降雨量能促进糜子生长发育,使株高、鲜重、倒伏系数增加,根干重降低会造成倒伏几率增加,而干旱年份则相反。生长季降雨量的变化,尤其是生育后期的降雨量是影响糜子发生倒伏现象的主要气象因素。
In order to promote the development of the millet industry,the main meteorological data at the growth season of the pilot zone of2015-2017were recorded using the automatic meteorological observation station.The changes in temperature,rainfall and other meteorological factors in recent three years of crop growth season were compared,influence of accumulated temperature,rainfall and other climatic conditions on millet lodging was analyzed.The results showed that the growing season rainfall could promote the growth of Panicum milia-ceum L.in abundont rainfall year or normal year,the plant height,fresh weight,lodging coefficient increased,root dry weight decreased,and lodging probability increased,the situation in the drought year was ust the oppo-site.Rainfall in growing season,especially at late growth stage,was the main meteorological factors of the mil-let lodging.
作者
王宇先
李清泉
赵蕾
刘玉涛
徐莹莹
杨慧莹
高盼
闫峰
董扬
WANG Yu-xian;LI Qing-quan;ZHAO Lei;LIU Yu-tao;XU Ying-ying;YANG Hui-ying;GAO Pan(Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences,Qiqihar,Heilongjiang 161006)
出处
《黑龙江农业科学》
2017年第11期13-16,19,共5页
Heilongjiang Agricultural Sciences
基金
国家谷子糜子产业技术体系资助项目(CARS-07-06B)
齐齐哈尔市科技局农业科技攻关资助项目(NYGG-201509)
关键词
半干旱地区
糜子
倒伏
气象因子
semi-arid area
millet
lodging
meteorological factors
