A kind of gravity type fertilizer fill system is suitable for carrying out fertilizer irrigation to plural crops with liquid, and includes a carrier unit, a water cell, a supply unit and an irrigating unit. The carrier unit is arranged above the what plural number crops,And including a main irrigation seat,And plural number connects the main secondary support for irrigating seat,The water cell is arranged on the what main irrigation seat,And the water storage box for defining an accommodating space is surrounded including one,The supply unit connect with the water storage box and is arranged the main feedline on the what carrier unit including one,And plural number is connected with the main feedline and is correspondingly arranged the pair delivery pipe on the what plural number secondary support,The irrigating unit is connect with the supply unit,And the dropping liquid tank being connect including plural number with the secondary delivery pipe of the plural number,Each dropping liquid tank is correspondingly arranged above the what crops.一種重力式肥灌系統，適用於對複數農作物以液體進行施肥灌溉，並包含一支架單元、一儲水單元、一輸送單元，及一灌溉單元。該支架單元設置於該複數農作物上方，並包括一主灌溉座，及複數連接該主灌溉座的副支架，該儲水單元設置於該主灌溉座上，並包括一圍繞界定出一容置空間之蓄水箱，該輸送單元包括一與該蓄水箱連接且設置於該支架單元上之主輸送管，及複數與該主輸送管相連通並對應設置於該複數副支架上之副輸送管，該灌溉單元與該輸送單元連接，並包括複數與該複數副輸送管連接之滴液罐，每一滴液罐是對應設置於該農作物上方。
