【摘要】 施肥装置是节水灌溉系统基本配套设备之一,其性能的优劣直接影响着灌溉与施肥的质量,目前在我国广泛应用的施肥装置主要有文丘里、注肥泵、压差施肥罐、自压施肥装置和智能施肥机等5种。介绍了这些施肥装置的工作原理和使用概况并着重对目前我国节水灌溉施肥装置的研究现状进行了总结归纳,并在此基础上分析了其发展趋势。更多还原

【Abstract】 The fertilizer injection unit is one of the necessary equipments of the saving-water irrigation system,and its performance directly affects the quality of irrigation and fertilization.Now five kinds of the injections are widely used in China,namely,the venture injector,the injector pump,the pressure differential tank,the self-pressure fertilizer device and the precise fertilizer applicator.In this paper,the operation principle and the general situation of application of these devices in China are introduced respectively.The summarizing and concluding about the present research situation are carried out emphatically.Based on it,the analysis on the development trend of the injectors is got.更多还原