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利用滴灌系统密布于田间的管道网向作物滴施可溶性化肥,既有利于肥料养分的利用,又可节省大量施肥劳力。过去常用的滴灌系统施肥设备各有其优缺点,有的受使用条件的限制;有的肥液浓度随时间改变;有的水头损失大或需配备专用的供肥泵。本文简要分析了各种施肥设备的工作状况,并着重介绍了具有设备简单、使用方便、施肥浓度不随时间变化等特点的施肥新设备——胶囊式化肥罐。
The use of drip irrigation system to spread the soluble fertilizer on the crops in the pipe network of the field is beneficial to the utilization of fertilizer nutrients, and it also can save a lot of fertilizing labor. The drip irrigation system fertilization equipment used in the past has its own advantages and disadvantages, some are limited by the conditions of use; some fertilizer concentrations change with time; some head loss or need to be equipped with a dedicated fertilizer pump. This paper briefly analyzes the working conditions of various fertilizer application equipments, and highlights the introduction of a new type of fertilization equipment—capsulized fertilizer tanks—that is simple in equipment, easy to use, and has no change in fertilizer concentration over time.