长期定位施用氮肥对蔬菜产量的影响（一）  

Effect of Long-term, Fixed Position Nitrogen Application on Yield Performance in Vegetable Field

作　　者：葛晓光[1] 王晓雪[1] 刘秀茹[1] 付亚文[1] 

机构地区：[1]沈阳农业大学蔬菜科学系

出　　处：《中国蔬菜》1996年第5期1-5,共5页China Vegetables

摘　　要：在蔬菜氮肥长期定位试验条件下分析了不同类型蔬菜生物产量、经济产量及经济（产量）系数的变化以及与土壤肥力的关系，建立了处理条件下的产量变化模型，进一步证明了有机肥与Ｎ素化肥配施的显著增产效果，根据蔬菜的产量效应将试验蔬菜划分为喜Ｎ型蔬菜、忌高Ｎ型蔬菜及Ｎ素敏感性蔬菜３种类型。Under the condition of long-term and fixed position nitrogen application in vegetable field, the variations of biomass, economic output and economic coefFicient of different type of vegetables were checked.The relationship between the variations and soil fertility were investigated.Models for output variations were estableshed in the experimental situation. Effect of the coordinated application of organic manure and nitrogen fertilizer on yield was remarkable. Based on the yield respose to fertilizing, vegetable crops could be divided into three types:nitrophilous, high level of nitrogen disliking, and nitrogen sensitive. Attention in nitrogen fertilizer application is discussed.

关 键 词：蔬菜 氮肥 定位施用 生物产量 产量 

分 类 号：S630.62[农业科学—蔬菜学]