栽培因子对扬麦22产量、品质及氮肥农学利用率的影响  

Effects of cultivation techniques on yield,quality and nitrogen agronomic efficiency of weak-gluten wheat cultivar Yangmai 22

作　　者：胡文静[1] 程顺和[1] 陈甜甜[1] 刘健[1] 刘大同[1] 梁秀梅 陆成彬[1] HU Wenjing;CHENG Shunhe;CHEN Tiantian;LIU Jian;LIU Datong;LIANG Xiumei;LU Chengbin(Key Laboratory of Wheat Biology and Genetic Breeding in the Middle and Lower Yangtze River, Ministry of Agriculture/ Lixiahe Institute of Agricultural Sciences of Jiangsu, Yangzhou 225007, China;State Key Laboratory of Crop Genetic and Gerrmplasm Enhancement, Nanjing Agriculture University, Nanjing 210095, China)

机构地区：[1]江苏里下河地区农业科学研究所/农业部长江中下游小麦生物学与遗传育种重点实验室,江苏扬州225007 [2]南京农业大学作物遗传与种质创新国家重点实验室,南京210095

出　　处：《扬州大学学报（农业与生命科学版）》2018年第1期86-90,共5页Journal of Yangzhou University：Agricultural and Life Science Edition

基　　金：国家重点研发计划项目(2017YFD0100800);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(2014-09-09);国家现代农业产业技术体系建设项目(CARS-3-2-1)

摘　　要：以弱筋小麦扬麦22为研究对象,采取田间裂区试验,研究播期、密度和施氮量对其产量、品质及氮肥农学利用率的影响。结果表明:播期和密度对产量均有显著影响,11月4日播种和225万苗·hm-2密度处理产量最高,施氮量对产量无显著影响,千粒重是扬麦22产量形成的关键因子;籽粒蛋白质含量和氮肥农学利用率受播期和施氮量影响,11月19日播种的籽粒蛋白质含量和氮肥农学利用率最高,施氮量增加,籽粒蛋白质含量显著升高,氮肥农学利用率降低。11月4日播种、225万苗·hm-2密度、180kg·hm-2施氮量处理,弱筋小麦扬麦22产量和品质较为协调,产量可达7 343kg·hm-2,籽粒蛋白质含量达12.37%,氮肥农学利用率达12.43kg·kg-1。A weak-gluten wheat cultivar Yangmai 22 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 result showed that sowing date and plant density had significant effects on the yield.The wheat sown on November 4 and with the density of225×104 seedling·hm-2 would achieve a highest yield,while nitrogen rate had no significant effects on the grain yield,and the 1 000-grain weight was the key factor in the formation of yield.The sowing date and nitrogen rate had a significant effect on grain protein content（GPC）and NAE,when sown on November 19,the GPC and NAE were the highest,the GPC was increased and NAE was reduced with increasing nitrogen rate.In this experiment,when the wheat was sown on November 4,the recommended plant density and nitrogen rate were 225×10^4 seedling·hm^-2 and 180 kg·hm^-2,a yield of 7 343 kg·hm^-2,GPC of 12.37%,NAE of 12.43 kg·kg^-1 could be achieved,and the yield and weak-gluten quality of Yangmai 22 were most coordinated.

关 键 词：弱筋小麦 播期 密度 施氮量 产量 品质 氮肥农学利用率 

分 类 号：S512.1[农业科学—作物学] S318