PROBLEM TO BE SOLVED: To grow all of crops in ideal states by feeding a diluted liquid fertilizer in an ideal state into a plurality of groups of a distribution line while preventing the plugging of the distribution lines effectively.SOLUTION: This method for feeding the diluted liquid fertilizer includes supplying the diluted liquid fertilizer to the crops by repeating: the process of filling water of feeding water to a discharging line 2 linking the distribution lines 1 and filling the discharging line 2 and distribution lines 1 with water the liquid fertilizer-feeding process of feeding the predetermined amount of the diluted liquid fertilizer to the discharging line 2, discharging the water in the discharging line 2 from the tip end part, after discharging the water in the discharging line 2, stopping the discharge of the water from the tip end part, feeding the diluted liquid fertilizer fed to the discharging line 2 to the distribution lines 1, and feeding the diluted liquid fertilizer to the crops by the distribution lines 1 and, after the liquid fertilizer-feeding process, the water-filling process of feeding the water to the discharging line 2, transferring the diluted liquid fertilizer in the discharging line 2 to the distribution lines 1 by the fed water, and further feeding the diluted liquid fertilizer in the distribution lines 1 to the crops and filling the distribution lines 1 and discharging line 2 with the water.COPYRIGHT: (C)2011,JPO&INPIT【課題】分配ラインの詰まりを有効に防止しながら、複数グループの分配ラインに理想的な状態の希釈液肥を供給して全ての作物を理想的な状態で生育させる。【解決手段】希釈液肥の供給方法は、分配ライン1を連結している排出ライン2に水を供給して、排出ライン2と分配ライン1を水で満たす水充満工程と、排出ライン2に所定量の希釈液肥を供給し、排出ライン2の水を先端部から排水し、排出ライン2の水を排水した後、先端からの排水を停止して、排出ライン2に供給される希釈液肥を分配ライン1に供給して、分配ライン1でもって作物に希釈液肥を供給する液肥供給工程と、液肥供給工程の後、排出ライン2に水を供給して供給される水で排出ライン2の希釈液肥を分配ライン1に移送し、さらに、分配ライン1の希釈液肥を作物に供給して、分配ライン1と排出ライン2を水で満たす水充満工程とを繰り返して、作物に希釈液肥を供給する。【選択図】図3
