灌溉排水学报2011，Vol.30Issue(6)：115-119,5.
不同营养液质量浓度对温室盆栽黄瓜生长与基质环境的影响
Effects of Different Nutrition Solution Concentrations on Growth of Cucumber and Substrate Environments
摘要
Abstract
To study the influences of different nutrient solution concentrations on growth of greenhouse cucumber （Cucumis sativus L. ） and substrate environment. A negative pressure water supplying and controlling pot device were used in the experiment to supply nutrient solution, four nutrient solution concentrations are designed in pot experiment, i. e. , 0.5S.0.75S.1S.1.25S with 1S Yamazaki cucumber nutrient solution concentration as the standard concentration, and set a CK（1S） treatment which supply nutrient solution by traditional irrigation method. The results showed that the growth speed and yield of cucumber are increased with the increasing of nutrient solution concentration, and growth speed and yield of cucum- ber with the water supplying and controlling pot device method is better than the traditional irrigation method, but there are no significant differences on nutrient solution use efficiency and root activity. The concentration of N and P elements in the substrate extract solution at last fruit period of cucumber are very lower compare to the original solution, and also the concentrations of K elements has some degree decline. However, the concentrations of Ca, Mg and S elements with a serious accumulation which leads to the sharp increasing of EC value of substrate extract solution. The above results indicate that 1S and 1.25S Yamazaki cucumber nutrient solution concentration are suitable for the cultivation of greenhouse cucumber, but it had better to increasing the concentration of N and P elements and decreasing the concentration of Ca, Mg and S elements. The experiment result also proved that the method of optimize cucumber nutrient solution formulations by monitoring the pH, EC and the concentrations of mineral ions of substrate regularly.关键词
营养液/黄瓜/负水头控水/电导率/矿质离子质量浓度Key words
nutrient solution/cucumber/negative pressure water control/EC/concentration of mineral ions分类
农业科技引用本文复制引用
李邵,薛绪掌,齐飞,周长吉,郭文善,陈菲..不同营养液质量浓度对温室盆栽黄瓜生长与基质环境的影响[J].灌溉排水学报,2011,30(6):115-119,5.基金项目
公益性行业(农业)科研专项(200903009) （农业）
国家863计划项目(2010AA10A301) （2010AA10A301）
北京市农业科技示范推广项目 （）
