不同氮肥施用模式对日光温室生菜品质及土壤环境影响  

Effects of different nitrogen fertilization patterns on the quality of the lettuce and soil environment

作　　者：孙治强[1] 赵卫星[1] 张文波[1] 

机构地区：[1]河南农业大学林学园艺学院,郑州450002

出　　处：《农业工程学报》2005年第z2期159-161,共3页Transactions of the Chinese Society of Agricultural Engineering

基　　金：河南省重大科技攻关项目(0322010900)

摘　　要：研究不同的氮肥施用模式对日光温室生菜品质及土壤环境影响。结果表明:生菜生产应采用以基肥为主的施肥模式,蔬菜施肥两周后采收较安全。氮肥早施对蔬菜品质有利,也避免硝酸盐和亚硝酸盐大量积累,后期追肥过多过晚不利于蔬菜品质提高,也威胁蔬菜和土壤安全,蔬菜生长后期不宜过多追肥。The effects on nourishment and safe quality of the lettuce and soil environment in the greenhouse with the different nitrogen fertilization patterns were studied,the results indicate that the base fertilizer should be put the important place in planting lettuce,the vegetable can be harvested safely after applying fertilizer two weeks.Early application of the nitrogen fertilizer is beneficial to the quality of the lettuce and also avoid the nitrate and nitrite accumulation,excessive top dressing in the anaphase is disadvantageous to quality of the vegetable,also threatens vegetable and soil safety,so the top dressing is not proper to apply in the anaphase of vegetable.

关 键 词：氮肥施用模式 生菜品质 土壤环境 

分 类 号：S316[农业科学—作物栽培与耕作技术]