摘要
为对品种节氮增效潜力进行综合评价,以2013—2014年筛选出的高产高效品种郑单958、伟科702为材料,设N0(不施氮)、N1(追施尿素300 kg/hm2)、N2(追施尿素600 kg/hm2)3个处理,测定并计算不同氮肥处理下干物质积累及转运规律.结果表明,吐丝期后,N2干物质积累量、积累率及对产量贡献率显著高于其他处理.由此认为,N2是更适合在通辽地区推广种植的施氮水平.
High nitrogen efficient varieties Zhengdan 958,Weike 702 were selected to study nitrogen saving efficiencies. Treatments included N0（No nitrogen）,N1（Nitrogen fertilizer 300 kg/hm2）,N2（Nitrogen fertilizer 600 kg/hm2）,to determine and calculate rule of dry matter accumulation and transport in different nitrogen treatments. Dry matter accumulation,accumulation rate and yield contribution rate of N2 were significantly higher than those of other treatments after silking. Therefore,N2 is more suitable as the nitrogen fertilizer level in Tongliao.
作者
张丽娟
李莹莹
杨恒山
王宏伟
孙丽
张燕
郝健邦
ZHANG Li-juan;LI Ying-ying;YANG Heng-shan;WANG Hong-wei;SUN Li;ZHANG Yan;HAO Jian-bang(College of Agriculture, Inner Mongolia University for Nationalities, Tongliao 028043, China;Agriculture Technology and Popularization Center of Horchin District,Tongliao City, Tongliao 028000,China;Tongliao Academy of Agricuhural Sciences of Inner Mongolia, Tongliao 028000, China)
出处
《内蒙古民族大学学报（自然科学版）》
2017年第6期490-493,共4页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
国家科技支撑计划项目(2013BAD07B04)
关键词
春玉米
氮肥
干物质积累
转运
Spring Maize
Nitrogen fertilizer
Accumulation of dry matter
Transportation
