中国南方果树2025，Vol.54Issue(z1)：1-5,5.DOI:10.13938/j.issn.1007-1431.20250319
减化肥氮配施有机肥对柑橘生长及产量品质的影响
Effects of reducing nitrogen fertilizer combined with organic fertilizers on citrus growth,yield,and fruit quality
摘要
Abstract
Long-term excessive nitrogen application not only leads to soil acidification and weakens citrus trees,but also signifi-cantly reduces yield and fruit quality.Using eight-year-old Murcott tangerine trees as experimental material,a two-year field ex-periment was conducted to investigate the effects of 30％ nitrogen reduction combined with organic fertilizer application(0,10,20,and 30 kg per tree)on rhizosphere soil nutrients,plant growth,yield and fruit quality.The results demonstrated that the treat-ment combining 30％ nitrogen reduction with 20 kg organic fertilizer per tree exhibited the best comprehensive effects and eco-nomic benefits.Compared with conventional fertilization,this treatment increased soil pH value by 0.47 units,enhanced rhizo-sphere soil organic matter,available nitrogen,available phosphorus and available potassium by 14.95％,7.58％,10.83％ and 8.78％,respectively,as well asimproved new shoot length by 12.02％,increased average fruit diameter,single fruit weight and yield by 13.16％,12.69％ and 12.65％.In addition,citrus soluble sugar and vitamin C content were increased by 15.45％ and 13.96％,respectively.These findings indicated that a moderate nitrogen reduction combined with organic fertilizer application could effectively alleviate soil acidification,improve soil nutrient availability,promote root and canopy growth,and consequently enhance fruit yield,quality and economic benefits in citrus production across South China.关键词
茂谷柑/氮肥减量/有机肥/土壤养分/品质/产量Key words
Murcott tangerine/nitrogen fertilizer reduction/organic fertilizer/soil nutrients/quality/yield引用本文复制引用
刘晓奇,赖美金,吴云龙,冷湘林,徐守俊,喻建刚,沈宏..减化肥氮配施有机肥对柑橘生长及产量品质的影响[J].中国南方果树,2025,54(z1):1-5,5.基金项目
中央耕地建设与利用(化肥减量增效田间试验)项目(4200-F24072、4200-F25063)资助. （化肥减量增效田间试验）
