安徽农业科学2026，Vol.54Issue(10)：118-122,5.DOI:10.3969/j.issn.0517-6611.2026.10.023
不同水氮处理对玉米生理特性及产量的影响
Effects of Different Water and Nitrogen Treatments on Physiological Characteristics and Yield of Maize
摘要
Abstract
[Objective]To investigate the effects of different irrigation amounts and nitrogen application rates under drip fertigation on the physiological characteristics and yield of maize.[Method]A randomized block experiment was conducted with four irrigation levels(W0,W1,W2,W3)and four nitrogen application rates(N0,N1,N2,N3),resulting in a total of 16 water-nitrogen combination treatments.The W0N0 treatment was set as the control(CK).The effects of these 16 water and nitrogen treatments on maize plant height,leaf area index,chlorophyll content(SPAD),yield and yield components were analyzed.[Result]With the increase of irrigation amount and nitrogen application rate,plant height,leaf area index and SPAD value all showed a significant upward trend.Plant height reached its peak under the W2N2 treatment during the grain-filling stage.The leaf area index increased most rapidly from the large trumpet stage to the tasseling and silking stage,and reached its peak at the tasseling and silking stage.The leaf area index of the W2N2 treatment at this stage was 5.90,which was 30.24%higher than that of the CK treatment.Under different treatments,chlorophyll content increased first and then decreased with the increase of nitrogen application rate.Aboveground dry matter accumulation increased with the increase of irrigation amount and nitrogen application rate,reaching its peak dur-ing the grain-filling stage.Under the irrigation amount of 5 400 m3/hm2 and nitrogen application rate of 225 kg/hm2,that is,the W2N2 treat-ment,the yield of corn was the highest,reaching 21 141.0 kg/hm2,which was significantly higher than the CK treatment by 17 185.5 kg/hm2,with an increase rate of 23.02%.[Conclusion]Under drip fertigation,the highest mazie grain yield was achieved at an irrigation amount of 5 400 m3/hm2 and nitrogen application rate of 225 kg/hm2.关键词
玉米/生理特性/水氮耦合/干物质/产量Key words
Maize/Physiological characteristics/Water-nitrogen coupling/Dry matter/Yield分类
农业科技引用本文复制引用
杨明花,廖必勇,刘琪,刘强,布阿依夏木·那曼提,冯国瑞,达吾来·杰克山,艾尔居玛·吐卢汗,孙娜..不同水氮处理对玉米生理特性及产量的影响[J].安徽农业科学,2026,54(10):118-122,5.基金项目
新疆维吾尔自治区重点研发专项(2022B02015-2). （2022B02015-2）
