摘要
以弱筋小麦扬麦20为研究对象,采取田间裂区试验,研究了播期、播种密度和施氮量对其产量、品质和氮肥农学利用率的影响。结果表明,播期、施氮量和密度都对产量具有显著影响,穗数和千粒质量是扬麦20产量形成的关键因子,品质性状和氮肥农学利用率主要受播期和施氮量影响,随着施氮量增加,籽粒蛋白质含量显著升高,氮肥农学利用率显著降低。本试验中扬麦20在播期11月4日,密度每1 hm^22.25×10~6,施氮量180 kg/hm^2处理下,产量和弱筋品质最为协调,氮肥农学利用率可达12.92 kg/kg。
A weak-gluten wheat cultivar Yangmai 20 was used to investigate the effects of sowing date,plant density and nitrogen rate on yield,quality and nitrogen agronomic efficiency（ NAE） in a field experiment. The results showed that sowing date,nitrogen rate and plant density had significant effect on the yield. The spike number and thousand grain weight were the key factors in the formation of Yangmai 20,the quality traits and NAE were mainly affected by sowing date and nitrogen rate. Grain protein content increased significantly and NAE reduced significantly with the increase of nitrogen rate. In this experiment,when sown on November 4,the recommended plant density and nitrogen rate were 2.25×10~6 plants per hectare and 180 kg/hm^2,the yield and quality of Yangmai 20 were most coordinated,and the NAE could reach 12. 92 kg/kg.
作者
胡文静
程顺和
程晓明
王君婵
吴荣林
陆成彬
HU Wen-jing;CHENG Shun-he;CHENG Xiao-ming;WANG Jun-chan;WU Rong-lin;LU Cheng-bin(Insitute of Agricultural Science of the Lixiahe Districh in Jiangsu Province/Key Laboratory of Wheat Biology and Genetic Breeding in the Middle and Lower Yangtze River,Ministry of Agriculture,Yangzhou 225007,China)
出处
《江苏农业学报》
CSCD
北大核心
2018年第3期487-492,共6页
Jiangsu Journal of Agricultural Sciences
基金
国家重点研发计划项目(2016YFD0101802)
扬州市现代农业项目(YZ2016033)
长江中下游优势小麦品种技术试验示范项目
国家现代农业产业技术体系项目(CARS-3-2-11)
关键词
小麦
播期
施氮量
密度
产量
品质
氮肥农学利用率
wheat
sowing date
nitrogen rate
density
yield
quality
nitrogen agronomic efficiency （NAE）
