不同氮素水平下的草莓生长状况研究  

Strawberry Growth under Different Nitrogen Levels

作　　者：郑洪波[1] 李亚莉 耿庆龙[3] 郑重[1] 

机构地区：[1]石河子大学农学院,新疆石河子832000 [2]兵团第十二师104团,乌鲁木齐830000 [3]新疆农业科学院土壤肥料与农业节水研究所,乌鲁木齐830091

出　　处：《新疆农业科学》2017年第1期104-109,共6页Xinjiang Agricultural Sciences

基　　金：自治区电子信息发展专项资金(XJDZXXZX201502)~~

摘　　要：【目的】研究温室不同氮素水平下无土栽培的草莓最佳品质和产量,确定最佳氮素施用浓度。【方法】以具有代表性的草莓品种丰香作为研究对象,在相同的栽培管理技术条件下,研究草莓在6种不同氮肥施用量下的生长、结果及品质。【结果】在施用6个氮素水平的处理中,当氮素施用量在2.0~7.5 mmol/L,随着施氮量的增加,植株的株高、茎粗、叶面积以及草莓的产量等均相应的增加,但是当氮素施用超过7.5 mmol/L时氮素利用率会降低,且植株的株高、茎粗、叶面积以及草莓的产量等呈现降低趋势。【结论】氮素施用水平在7.5 mmol/L为温室无土栽培草莓最佳的氮素施用浓度。[ Objective ] To study the best quality and yield of strawberry under different nitrogen levels in greenhouses and determine the optimum N application concentration. [ Method ] The research object of this study was ＂Fenxiang＂. The growth, the fruits and the quality of strawberry under six different nitrogen appli- cation rates were studied under the same cultivation and management techniques. [ Result] In the treatment of six nitrogen levels, the plant height, stem diameter, leaf area and yield of strawberry increased with the in- crease of the amount of nitrogen applied in the range of 2 - 7.5 mmol/L. But when the nitrogen application rate was over 7.5 mmol/L, the nitrogen utilization rate would decrease and the plant height, stem diameter, leaf area and yield of strawberry showed a trend of decrease. [ Conclusion ] Nitrogen application level at 7.5 mmol/L was the best concentration for strawberry in greenhouse soilless cultivation.

关 键 词：草莓 氮肥 生长量 产量 品质 

分 类 号：S663.2[农业科学—果树学]