安徽农业科学2026，Vol.54Issue(11)：204-206,241,4.DOI:10.3969/j.issn.0517-6611.2026.11.039
膜下滴灌水氮耦合对大田辣椒产量及品质的影响
Effects of Water-Nitrogen Coupling Under Mulched Drip Irrigation on Yield and Quality of Field-Grown Chili Pepper
摘要
Abstract
To explore an efficient water-saving and fertilizer-saving cultivation pattern for field-grown pepper in the Jingdian irrigation area,a field experiment was conducted in 2024.The effects of different water-nitrogen coupling treatments under mulched drip irrigation on pepper yield and quality were investigated.Three irrigation levels were set:full irrigation(W1,75%-85%θf),mild deficit(W2,65%-75%θf),moderate deficit(W3,55%-65%θf)and three nitrogen application rates were designed:high nitrogen(N1,300 kg/hm2),medium nitrogen(N2,225 kg/hm2),low nitrogen(N3,150 kg/hm2),resulting in a total of nine treatments.The results showed that the water-nitrogen cou-pling combination had a significant impact on pepper yield and quality(P<0.05).The appropriate water-nitrogen combination(W2N2)pro-moted the coordinated development of yield components,achieving a high yield(8 752.33 kg/hm2)with no significant difference compared with conventional water and fertilizer management(W1N1),while significantly reducing irrigation water and nitrogen fertilizer usage.In terms of quality,mild deficit irrigation(W2)combined with medium nitrogen(N2)significantly increased the vitamin C content and soluble sugar content of peppers by 23.09%and 21.85%,respectively,compared with W1N1.In conclusion,for field-grown pepper production in the Jingdian Irrigation District,the water-nitrogen coupling model under mulched drip irrigation,combining mild water deficit(W2,65%-75%θf)with medium nitrogen application(225 kg/hm2),is an optimized cultivation strategy that achieves synergistic improvements in high yield,quality,water savings,and fertilizer reduction.关键词
辣椒/膜下滴灌/水氮耦合/产量/品质Key words
Pepper/Drip irrigation under mulch/Water-nitrogen coupling/Yield/Quality分类
农业科技引用本文复制引用
郭爱刚..膜下滴灌水氮耦合对大田辣椒产量及品质的影响[J].安徽农业科学,2026,54(11):204-206,241,4.基金项目
甘肃省水利科学试验研究及技术推广项目(25GSLK075). （25GSLK075）
