不同氮肥处理对春玉米氮吸收分配及产量的影响  

Effects of Different Nitrogen Fertilizers on Nitrogen Absorption,Distribution and Yield of Spring Maize

作　　者：高飞[1] 李威[1] 逄妍[1] 陶晓亮 姜佰文[1] 

机构地区：[1]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《作物杂志》2015年第4期97-101,共5页Crops

基　　金："十二五"国家科技支撑计划(2012BAD14B06);农业部"948"项目子课题(2011-G18);哈尔滨市应用技术研究与开发项目(2014DB3BN037)

摘　　要：对等氮量条件下化肥配施缓释尿素、不同比例化肥配施生物有机肥对春玉米各生育期氮素吸收分配、产量及肥料效益的影响进行了研究。结果表明,不同处理叶片、茎和鞘的全氮含量均随玉米生育期的推进呈降低趋势,氮积累量不断增加;最终产量为B3(92.2%N由普通尿素和磷酸二铵提供+7.8%N由生物有机肥提供)>B2(94.8%N由普通尿素和磷酸二铵提供+5.2%N由生物有机肥提供)>S1(50%N由普通尿素和磷酸二铵提供+50%N由美国缓释尿素提供)>B1(97.4%N由普通尿素和磷酸二铵提供+2.6%N由生物有机肥提供)>CK(100%N由普通尿素和磷酸二铵提供),S1、B2、B3分别较CK处理增产13.52%、14.71%和15.52%,但三者之间差异不显著。B2处理的肥料效益最高,为13 270元/hm2,与B3、S1、B1、CK的差值分别为56、173、453、1 924元/hm2。Through field experiment analysis, the effects of nitrogen absorption and distribution of maize growth sta- ges, yield and fertilizer benefit at different nitrogen fertilization were studied. Results show that nitrogen content of leaf, stem and sheath decreased with developing of growth stages ,nitrogen accumulation increased. The yield was as following ： B3 （92.2% N provided by urea and diammonium phosphate ＋ 7.8% N supplied by bio-organic fertilizer） 〉 B2 （94.8% N provided by urea and diammonium phosphate ＋ 5.2% N） 〉 S1（50% N provided by urea and di- ammonium phosphate ＋ 50% N supplied by slow release urea） 〉 B1 （97.4% N provided by urea and diammonium phosphate ＋2.6% N provided by the bio-organic fertilizer） 〉 CK（97.4% N provided by urea and diammonium phosphate ＋ 2.6% N provided by the bio-organic fertilizer）. S1, B2 and B3 treatments obtained higher yields, but there were no significant difference identified among them,and increased 13.52% , 14.71% and 15.52% than the yield of CK treatment, respectively. The ultimate fertilizer benefit of B2 treatment was the highest （13 270yuan/ hm^2 ） , and the difference between that of B3, $1, B1, and CK was 56,173,453,1 924yuan/hm^2, respectively.

关 键 词：玉米 氮肥 氮含量 氮积累量 产量 

分 类 号：S513[农业科学—作物学]