密度和氮肥运筹对2种穗型小麦叶面积指数与产量的影响  

Effects of Density and Nitrogen Fertilizer Management on the Yield and Leaf Area Index of Wheat with Different Spike Types

作　　者：王竟绍[1,2] 谭娟[1,2] 邹兵[1] 董召荣[1] WANG Jing-shao;TAN Juan;ZOU Bing(School of Agronomy,Anhui Agricultural University,Hefei,Anhui 230036;Hefei Fengle Seed Co.,Ltd.,Hefei,Anhui 230031)

机构地区：[1]安徽农业大学农学院,安徽合肥230036 [2]合肥丰乐种业股份有限公司,安徽合肥230031

出　　处：《安徽农业科学》2019年第17期35-37,共3页Journal of Anhui Agricultural Sciences

基　　金：国家粮食丰产科技工程项目(2006BAD02A06-19);国家科技支撑计划项目(2009BADA6B06,2008BAD96B12)

摘　　要：以多穗型小麦烟农19和大穗型小麦兰考矮早8为材料,研究密度和氮肥基追比例对不同穗型冬小麦叶面积指数和产量的影响。结果表明,多穗型小麦烟农19的中密度(300×10^4株/hm^2基本苗)和氮肥基追比例5∶5互作处理、大穗型小麦兰考矮早8的高密度(412.5×10^4株/hm^2基本苗)和氮肥基追比例7∶3互作处理有利于群体叶面积指数的提高,产量最高,分别为8682.97、7440.35kg/hm^2。安徽省淮北平原地区,多穗型小麦种植密度300×10^4株/hm^2基本苗和氮肥基追比例5∶5互作处理为宜,而大穗型小麦种植密度300.0×10^4~412.5×10^4株/hm^2基本苗和氮肥基追比例7∶3~5∶5互作处理为宜。Taking multi-spike wheat Yannong 19 and large-spike wheat Lankao Aizao 8 as research materials,we studied the density and nitrogen fertilizer management on the yield and leaf area index of wheat with different spike types.Results showed that the interaction of medium density(300×10^4 plants/hm^2 basic seedling)of multi-spike type wheat Yannong 19 with 5∶5 ratio of nitrogen fertilizer base topdressing,high density(412.5×10^4 plants/hm^2 basic seedling)of large-spike type wheat Lankao Aizao 8 and 7∶3 ratio of nitrogen fertilizer base topdressing were beneficial to the improvement of population leaf area index,and the highest yield was 8 682.97 and 7 440.35 kg/hm^2,respectively.In the Huaibei plain of Anhui Province,the interaction treatment of 300×10^4 plants/hm^2 basic seedling density of multi-spike wheat and 5∶5 ratio of nitrogen fertilizer basal topdressing was suitable,and the interaction treatment of 300×10^4-412.5×10^4 plants/hm^2 basic seedling density and 7∶3-5∶5 ratio of nitrogen fertilizer basal topdressing was suitable for large-spike wheat.

关 键 词：小麦 穗型 氮肥 密度 叶面积指数 产量 

分 类 号：S512.1[农业科学—作物学]