氮肥对冀西北坝上地区青贮玉米产量与品质的影响  

Effect of nitrogen fertilizer on yield and quality of silage maize in bashang area of northwest Hebei Province

作　　者：李雯 马琳峰 俞凤芳[1] 曹熙敏[1] 刘贵河[1] 吕爱枝[1] LI Wen;MALin-feng;YU Feng-fang;CAO Xi-min;LIU Gui-he;Lü Ai-zhi

机构地区：[1]河北北方学院,河北张家口075000

出　　处：《饲料研究》2021年第14期127-130,共4页Feed Research

基　　金：财政部和农业农村部“国家现代农业产业技术体系”;河北省重点研发技术项目“玉米抗逆、抗病、节水、专用、易机收种质资源创制及育种技术研究(项目编号:16226323D-8)”。

摘　　要：试验研究不同施氮量对青贮玉米株高、茎粗和叶绿素含量等性状及产量与品质的影响。以“德美亚1号、院军1号、巡天6171”3个品种为试验材料,设置9个施氮量组,分别为N0组(0kg/hm^(2))、N1组(141.75 kg/hm^(2))、N2组(193.5 kg/hm^(2))、N3组(245.25 kg/hm^(2))、N4组(297 kg/hm^(2))、N5组(348.75 kg/hm^(2))、N6组(400.5 kg/hm^(2))、N7组(452.25 kg/hm^(2))、N8组(504 kg/hm^(2))。结果显示,德美亚1号在施氮量452.25 kg/hm^(2)时,干草产量最高,为20.57 t/hm^(2),株高208.57 cm,茎粗2.17 cm,叶绿素含量60.54%,干草品质可达国家二级;其次是施氮量504 kg/hm^(2)时,干草产量18.83 t/hm^(2),株高198.53 cm,茎粗2.37 cm,叶绿素为64%,干草品质达国家三级。研究表明,德美亚1号较适宜在冀西北坝上地区种植。The experiment studied the effects of different nitrogen application rates on the traits,yield and quality of silage maize such as plant height,stem diameter and chlorophyll content.With three varieties of'Demeiya No.1,Yuanjun No.1 and Xuntian 6171'as experimental materials,nine nitrogen application groups were set up,namely group NO(0 kg/hm^(2)),group N1(141.75 kg/hm^(2)),group N2(193.5 kg/hm^(2)),group N3(245.25 kg/hm^(2)),group N4(297 kg/hm^(2)),group N5(348.75 kg/hm^(2)),group N6(400.5 kg/hm^(2)),group N7(452.25 kg/hm^(2))and group N8(504 kg/hm^(2)).The results showed that Demeiya NO.1 had the highest hay yield of 20.57 t/hm^(2),plant height of 208.57 cm,stem diameter of 2.17 cm and chlorophyll content of 60.54%at 452.25 kg/hm^(2) nitrogen application rate,and the quality of hay reached the second grade of the state.Under the treatment of 504 kg/hm^(2) nitrogen fertilizer,the Hay yield was 18.83 t/hm^(2),the plant height was 198.53 cm,the stem diameter was 2.37 cm,and the chlorophyll content was 64%and the quality of hay reached the third grade of the state.The study indicates that Demeiya No.1 is suitable to plant in bashang area of northwest Hebei Province.

关 键 词：氮肥 青贮玉米 产量 品质 

分 类 号：S816[农业科学—饲料科学]