摘要
为明确适合大面积高产的冬小麦播量,以山东省主栽品种济麦22为供试材料,采取大区试验设计,设置75、150、225、300、375、450 kg/hm2共计6个播量处理,研究不同播量对冬小麦生长发育和产量的影响。结果表明,播量300 kg/hm2以内有利于培育健壮个体,促进叶、蘖、根的同伸性;随着播量的增加,穗粒数和千粒重显著减少,单位面积穗数和产量呈先增加后减少的趋势;济麦22在鲁西南地区的适宜播量为150～225 kg/hm2,最佳播量为150 kg/hm2。
In order to determine the suitable sowing rate of high yield in large area,Jimai 22（the most popularized wheat variety in ShandongProvince）was selected as material,a large plot experiment involving six sowing rates（75,150,225,300,375,450 kg∕hm2）was designed to study theeffects of sowing rates on the growth and development and yield traits of winter wheat.The results showed that sowing rate under 300 kg∕hm2 not only wasgood for forming strong individuals,but also promoted the synchrony of leaves,tillers and roots.With the increase of sowing rate,grain number per earand the 1000-kernel weight decreased significantly,and the ear number per unit area and yield increased first and then decreased.The suitable sowingrate of Jimai 22 in southwest Shandong was 150-225 kg∕hm2,and the optimumsowing rate was 150 kg∕hm2.
作者
孙红梅
宗克栋
董秀春
徐成忠
李福元
SUN Hong-mei;ZONGKe-dong;DONGXiu-chun;XU Cheng-zhong;LI Fu-yuan(Liangshan Land Surveying and Planning Station in Shandong Province,Liangshan Shandong 272600;Jining Seed Management Station;Jining Agricultural Technology Extension Station)
出处
《现代农业科技》
2018年第22期16-17,22,共3页
Modern Agricultural Science and Technology
基金
山东省农业技术推广总站农技推广项目
关键词
济麦22
播量
产量
Jimai 22
sowing rate
yield
作者简介
孙红梅（1978-）,女,山东梁山人,工程师,从事不同区域土壤地力水平勘测及对作物的养分调控效应研究工作.;通信作者
