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当前位置: 首页 > 文章 > 基于土壤硝态氮测试的春玉米氮肥实时监控技术 植物营养与肥料学报 2013,19 (5) 1248-1256
Position: Home > Articles > Real-time nitrogen management for spring maize using the soil nitrate-N test Journal of Plant Nutrition and Fertilizers 2013,19 (5) 1248-1256

基于土壤硝态氮测试的春玉米氮肥实时监控技术

作  者：
隽英华;汪仁;孙文涛;邢月华
单  位：
辽宁省农业科学院植物营养与环境资源研究所
关键词：
春玉米;氮肥实时监控;氮肥效率;硝态氮
摘  要：
为了实现作物产量和氮肥效率的协同提高,通过三年田间试验,建立了基于土壤硝态氮测试的春玉米氮肥实时监控技术。结果表明,与传统的习惯施肥相比,应用氮肥实时监控技术推荐的氮肥用量大幅减少,每年节约氮肥约60 kg/hm2。由于氮肥供应与春玉米氮肥需求在时间和空间上的匹配,籽粒产量较习惯施肥增加了6.43%,氮肥利用率、氮肥农学效率、氮肥生理利用率和氮肥偏生产力均显著提高。可见,本研究建立的氮肥实时监控技术是合理的,且在春玉米上应用该技术可以实现氮肥用量降低、产量增加、氮肥效率提高及生态环境保护的协调一致。
译  名：
Real-time nitrogen management for spring maize using the soil nitrate-N test
作  者：
JUAN Ying-hua;WANG Ren;SUN Wen-tao;XING Yue-hua;Institute of Plant Nutrition and Environmental Resource,Liaoning Academy of Agricultural Sciences;Shenyang Agricultural University;
关键词：
spring maize;;real-time N management;;N efficiency;;nitrate-N
摘  要：
With a three-year field experiment,the real-time nitrogen(N) management for spring maize was constructed to synergistically increase crop yield and fertilizer N efficiency based on the soil nitrate-N test.The results show that the optimal recommended N application rate is significantly lower than that of the traditional practice,and the amount of saving N fertilizer is about 60 kg/ha per year.Compared with the traditional practice,the grain yield under the optimal N rate is increased by 6.43% due to synchronizing N supply from soil and fertilizer,and N demand of spring maize.In addition,N use efficiency,N agronomic efficiency,N physiological use efficiency and N partial productivity are significantly improved.Therefore,it is preliminarily concluded that the real-time N management constructed in this study is reasonable,and the application of real-time N management to spring maize can realize synchronization of N application rate decrease,grain yield increase,N efficiency improvement and environment protection.

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