中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 施氮水平对烤烟新品系HN2146产质量的影响 贵州农业科学 2019 (6) 37-40
Position: Home > Articles > 施氮水平对烤烟新品系HN2146产质量的影响 Guizhou Agricultural Sciences 2019 (6) 37-40

施氮水平对烤烟新品系HN2146产质量的影响

作  者：
李云霞;余金龙;罗经仁;曾蓓
单  位：
湖南省烟草公司郴州市公司;湖南省郴州市农业科学研究所
关键词：
烤烟;HN2146;施氮量;产量;质量;郴州;湖南
摘  要：
为烤烟新品系HN2146在郴州烟区生产上的合理施用氮肥提供科学依据,采用田间试验方法,研究不同氮肥水平对其生育期、农艺性状、经济性状和烟叶外观质量的影响.结果表明:在试验条件下,随着氮肥水平的提高,对烤烟前期生长具有一定的促进作用,使其早生快发,但烟株成熟期推迟,生育期延长,施纯N 195kg/hm~2较施纯N 150kg/hm~2成熟期晚6d,较施纯N 172kg/hm~2成熟期晚3d;烟株的株高、茎围、节距、叶片数、腰叶长和腰叶宽等农艺性状均随着施氮水平的提高而增大,产量也随着施氮水平的提高而提高;均价、产值、上等烟比例和上中等烟比例随施氮水平的提高呈先升后降趋势,即施氮量过少,产量降低,施氮量过多,烟株生长过分旺盛,叶片大而肥厚,烟叶品质降低.在湖南郴州生态条件下,烤烟新品系HN2146施氮量以172.5kg/hm~2的产质量效果最佳.
作  者：
LI Yunxia;YU Jinglong;LUO Jingren;ZENG Bei;Chenzhou Institute of Agricultural Sciences;Chenzhou Branch Hunan Tobacco Company;
单  位：
LI Yunxia%YU Jinglong%LUO Jingren%ZENG Bei%Chenzhou Institute of Agricultural Sciences%Chenzhou Branch Hunan Tobacco Company
关键词：
flue-cured tobacco;;HN2146;;nitrogen application rate;;yield;;quality;;Chenzhou;;Hunan
摘  要：
To provide a scientific basis for the rational application of nitrogen fertilizer of the new fluecured tobacco variety HN2146 in Chenzhou tobacco area,the field experiment method was employed to study the effects of different nitrogen fertilizer levels on growth period,agronomic traits,economic traits and appearance quality of tobacco leaves.Results:Under the experimental conditions,nitrogen fertilizer level increasing had a certain promoting effect on the growth of flue-cured tobacco in the early stage,so it was of early emergence and fast growing,but the maturity stage was delayed,and the growth period was prolonged.The maturity date of flue-cured tobacco applied with pure N 195 kg/hm~2 was 6 dlater than that applied with pure N 150 kg/hm~2,and 3 dlater than that applied with pure N 172 kg/hm~2;Agronomic traits of plant height,stem circumference,pitch,number of leaves,waist leaf length and waist leaf width of tobacco plants and yield increased with increase of nitrogen application rate.The average price,output value,upper grade tobacco proportion and upper-middle grade tobacco proportion increased first and then decreased with increase of nitrogen application rate.Lower nitrogen application rate led to yield decrease,higher nitrogen application rate led to vigorous plant growth,broad and thick leaf,and leaf quality decrease.Under the ecological conditions of Chenzhou,Hunan Province,the new flue-cured tobacco variety HN2146 could obtain the optimal yield and quality with nitrogen application rate of 172.5 kg/hm~2.

相似文章

PDF下载 PDF预览
导出引用
计量
文章访问数: 2
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46