氮肥增效剂用量对玉米产量和氮素利用率的影响  

Effects of Nitrogen Fertilizer Synergist Amounts on Yield and Nitrogen Use Efficiency of Maize

作　　者：王丹阳 边文范[1] 董晓霞[1] 张玉凤[1] 董亮[1] 郭洪海[1] Luo Jiafa 田慎重[1] Wang Danyang;Bian Wenfan;Dong Xiaoxia;Zhang Yufeng;Dong Liang;Guo Honghai;Luo Jiafa;Tian Shenzhong(Institute of Agricultural Resources and Environment,Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Environment of Huang-Huai-Hai Plain,Ministry of Agriculture and Rural Affairs Shandong Provincial Engineering Research Center of New-Type Fertilizers,Jinan 250100,China;Agriculture Research,Ruakura Research Centre,Hamilton 3240,New Zealand)

机构地区：[1]山东省农业科学院农业资源与环境研究所/农业农村部黄淮海平原农业环境重点实验室/山东省环保肥料工程技术研究中心,山东济南250100 [2]Agriculture Research,Ruakura Research Centre,Hamilton,New Zealand 3240

出　　处：《山东农业科学》2019年第12期53-57,共5页Shandong Agricultural Sciences

基　　金：山东省重点研发计划项目(2018GNC111017);公益性行业(农业)科研专项(201503121);国家自然科学基金项目(41701337);山东省农业科学院农业科技创新工程项目(CXGC2018E03);“海外泰山学者”建设工程专项

摘　　要：研究不同用量氮肥增效剂对玉米干物质量、籽粒产量、氮吸收量和籽粒粗蛋白含量的影响。试验以无氮处理为对照(CK),设置7个氮肥增效剂用量处理,分别为添加0(JNW0)、1%(JNW1)、2%(JNW2)、3%(JNW3)、4%(JNW4)、5%(JNW5)、6%(JNW6)氮肥增效剂的聚能网尿素。结果表明,JNW2处理玉米产量和秸秆干物质量分别达到8790 kg/hm^2和7545.6 kg/hm^2,分别比其它处理高2.0%~15.6%和4.7%~21.0%;其籽粒吸氮量、秸秆吸氮量及籽粒粗蛋白含量分别比其它处理高8.5%~31.1%、19.6%~93.5%、3.4%~29.5%;同时,JNW2处理的氮肥利用率显著高于其它氮肥增效剂用量处理。添加氮肥增效剂能够显著提高玉米产量、干物质量、氮吸收量、籽粒粗蛋白含量和氮肥利用率,在本试验条件下,添加2%氮肥增效剂的聚能网尿素处理增产效果最好,氮肥利用率最高。To optimize nitrogen application management for maize production,we studied the effects of nitrogen fertilizer synergist amounts on the dry biomass,grain yield,nitrogen uptake and crude protein content of maize.Seven levels of synergist amounts including 0(JNW0),1%(JNW1),2%(JNW2),3%(JNW3),4%(JNW4),5%(JNW5),6%(JNW6)of nitrogen fertilizer synergist of Ju-Neng-Wang urea were used.No nitrogen plot was the control(CK).The results showed that the yield and dry biomass of maize of JNW2 treatment were 8790 kg/hm^2 and 7545.56 kg/hm^2,respectively,which were 2.0%~15.6%and 4.7%~21.0%higher than those of the other treatments.The nitrogen uptake of maize kernels,the nitrogen uptake of maize straw and the content of crude protein in grain were 8.5%~31.1%,19.6%~93.5%and 3.4%~29.5%higher than those of the other treatments.At the same time,the nitrogen use efficiency of JNW2 treatment was significantly higher than that of the other nitrogen synergist treatments.Adding nitrogen fertilizer synergist could significantly increase maize yield,dry biomass,nitrogen uptake,grain crude protein content and nitrogen use efficiency.Under the condition of this experiment,adding 2%urea synergist had the highest nitrogen use efficiency and maize yield.

关 键 词：玉米 氮肥增效剂 产量 氮肥利用率 干物质量 

分 类 号：S145.9[农业科学—肥料学] S513.062[农业科学—农业基础科学]