PROBLEM TO BE SOLVED: To provide irrigation and fertilization devices, irrigation and fertilization methods, programs, and irrigation and fertilization systems capable of effectively sending water and fertilization.SOLUTION: Provided is an irrigation and fertilization device 1 for feeding water and fertilizer to a crop growing area, which comprises: a water feed time instruction input unit for inputting a water-feeding time instruction； a fertilizer feeding instruction input unit for inputting a fertilizer-feeding time instruction； a pre-fertilizer water feed time instruction input unit for inputting a pre-fertilizer water-feeding time instruction； a post-fertilizer water feed time instruction input unit for inputting a post-fertilizer water-feeding time instruction； a feeding control pattern generator for generating a water and fertilizer control pattern by setting a main feeding step for sending water and fertilizer, by setting a pre-processing feeding step for feeding water without feeding fertilizer before the main feeding step, and by setting a post-processing feeding step for feeding water without feeding fertilizer after the main feeding step； and a feeding control unit for controlling the continuous feeding of the water and the fertilizer to one crop growing area in order of the pre-processing feeding step, the main feeding step, and the post-processing feeding step.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】水と肥料を効果的に送ることができる潅水施肥装置、潅水施肥方法、プログラムおよび潅水施肥システムを提供すること。【解決手段】作物育成領域に水および肥料を送る潅水施肥装置１であって、水送り時間指示を入力する水送り時間指示入力部と、肥料送り指示を入力する肥料送り指示入力部と、肥料前水送り時間指示を入力する肥料前水送り時間指示入力部と、肥料後水送り時間指示を入力する肥料後水送り時間指示入力部と、水と肥料を送るメイン送り過程を設定し、肥料を送らず水を送る前処理送り過程を前記メイン送り過程の前に設定し、肥料を送らず水を送る後処理送り過程を前記メイン送り過程の後に設定して水および肥料の送り制御パターンを生成する送り制御パターン生成部と、前記前処理過程、前記メイン送り過程および前記後処理過程の順に連続して一の作物育成領域に対して前記水および前記肥料の送りを制御する送り制御部とを備える。【選択図】図１
