设施黄瓜砂培营养液配方筛选试验  

Screening Experement of Nutrient Solution Famula on Sand Culture Cucumis sativus L.

作　　者：卜燕燕[1] 高艳明[1] 李建设[1] 李文甲[1] 

机构地区：[1]宁夏大学农学院,宁夏银川750021

出　　处：《北方园艺》2010年第9期60-64,共5页Northern Horticulture

基　　金："十一五"国家科技支撑计划资助项目(2007BAD57B04)

摘　　要：采用三因素五水平通用旋转组合设计,在现代日光温室内研究了营养液配方中不同摩尔浓度的NO3--N、P、K对黄瓜产量的影响,得到了三者之间的回归方程,依此进行分析。结果表明:3个元素对黄瓜产量的影响大小顺序是:氮>磷>钾;通过计算机模拟寻优,黄瓜达到单株最高产量1 395.97 g时,营养液中NO3--N、P、K最优配方为:15、1.0和6.0 mmol/L。经过验证,最优配方处理A、B的株高、茎粗、生长势、产量、品质表现相对优于对照。The comprehensive effects of N, P, K concentrations on Cucumis sativus L. were studied by quadratic general spinning design under modern greenhouse. The results calculated from regresion equation between yield and there elements concentrations factors of N,P, K showed that：the effects sequence of there nutrients on the yield of Cucumis sativus L. was nitric-N（NO3^--N）〉potassium（K）〉phosphorus（P） ;After simulation with computer, the optimal ration of N,P and K to achieve highest yield of individual Cucumis sativus L. （1 395. 97 g） was 15,1.0 and 6.0 mmol/L respetibely. This ration A and B were verified because the height, stem diameter, growth potential, yield and quality of Cucumis were superior to CK.

关 键 词：设施黄瓜 砂培 营养液配方 回归模型 

分 类 号：S642.2[农业科学—蔬菜学]