氮钾调控对春玉米氮钾积累及产量的影响  

Effect of nitrogen and potassium interaction on accumulation and yield of spring maize

作　　者：姜佰文[1] 谭贺[1,2] 于亚利[1] 王春宏[1] 

机构地区：[1]东北农业大学资源与环境学院,哈尔滨150030 [2]黑龙江省农科院耕作栽培研究所,哈尔滨150086

出　　处：《东北农业大学学报》2013年第8期58-63,共6页Journal of Northeast Agricultural University

基　　金：农业部"948"计划项目(2011-G18);国家科技支撑课题项目(2012BAD14B06)

摘　　要：以哈尔滨地区主栽品种先玉335号为供试品种,通过不同氮钾配比确定氮钾在玉米不同生长期和不同器官的积累规律及其对产量的影响。结果表明,整个生育期玉米叶茎氮钾积累量表现为先增加后降低趋势,抽雄期达到最大;籽粒中氮钾逐渐增加,但钾素含量相对较低;处理A2B2(N 150 kg.hm-2+K2O100 kg.hm-2)产量最高。A field trial was conducted to study nitrogen and potassium accumulation and yield of Xianyu 335 spring maize for varieties tested under deferent N and K application rates. The results showed that N and K accumulation of leafage and stalk sheath increased at first, but gradually decreased later during whole growth period, tasseling achieve maximum; N and K accumulation of kernel increase, but K accumulation is less; the yield is most under treatment A2B2（N150kg·hm^-2＋K2O100kg·hm^-2）.

关 键 词：氮钾比例 春玉米 积累 产量 

分 类 号：S513.062[农业科学—作物学]