PROBLEM TO BE SOLVED: To provide an inexpensive means and device for automatic irrigation capable of supplying the optimal amount of water according to growing states of crops in an elevated cultivation with a simple configuration and method while corresponding to the amount of sunlight, and capable of minimizing the waste liquid.SOLUTION: The means for automatic irrigation detects the amount of water in a waste liquid tank 30 which accumulated the waste liquid from an elevated cultivation bed B, and supplies the water accumulated in a pulsation tank 1 to the elevated cultivation bed B through a drip tube 20 based on the detection result.COPYRIGHT: (C)2013,JPO&INPIT【課題】日照量に対応しながら、簡易な構成及び方式により高設栽培での作物の生育状況に応じた最適量の給水を行ない、かつ排液も最小限に抑えることができる低コストの自動潅水方法及びその装置を提供する。【解決手段】高設栽培ベッドBからの排液を貯留する排液タンク30内の水量を検出し、その検出結果に基づき、拍動タンク1内に貯留した水を、点滴チューブ20を介して高設栽培ベッドBに供給することを特徴とする。【選択図】図1
