密度和氮肥对燕麦根系碳氮磷含量的影响  

Effects of Density and Nitrogen Fertilizer on Root C, N and P Contents of Avena fatua L.

作　　者：齐蕊 程卫燕 赵力兴 李天琦 高阳[1] 宋美娟 高凯[1] QI Rui;CHENG Wei-yan;ZHAO Li-xing(College of Agronomy,Inner Mongolia University for Nationalities,Tongliao,Inner Mongolia 028043)

机构地区：[1]内蒙古民族大学农学院

出　　处：《安徽农业科学》2019年第17期41-43,共3页Journal of Anhui Agricultural Sciences

基　　金：国家重点研发计划课题子课题“优质燕麦干草加工调制关键技术及产品研发研究与示范”(2017YFD050213-4);国家重点研发计划课题“典型脆弱生态修复与保护研究”(2016YFC0500603);内蒙古自治区饲用作物工程技术研究中心开放课题(MDK2017005)

摘　　要：通过对燕麦进行不同的密度和氮肥处理,测定燕麦根系的碳、氮、磷,探讨密度和氮肥对燕麦根系碳、氮、磷含量的影响规律。结果表明,随着施氮量的增加,根系碳、氮、磷含量均呈现出先上升后降低的趋势,碳、氮含量均在450kg/hm^2氮处理下出现最大值,分别为35.91、14.26g/kg。随着种植密度的增加,根系氮含量逐渐下降;增加种植密度对根系磷含量无显著影响。The effects of density and nitrogen fertilizer on the root C,N and P contents of Avena fatua L.were studied by carrying out the nitrogen fertilizer test.Results showed,with the increase of nitrogen application,the root C,N and P contents firstly increased and then decreased.C and N contents were the maximum under 450 kg/hm^2 N treatment,which were 35.91 and 14.26 g/kg,respectively.With the increase of planting density,root N content gradually decreased.Increasing the planting density showed no significant impacts on P content.

关 键 词：燕麦 氮肥 密度 根系 营养物质 

分 类 号：S512.6[农业科学—作物学]