The utility model is in relation to a kind of irrigation rig of the crop with what cultivating and growing what soil of what, includes a reservoir, a transfer pipeline, a negative pressure inlet pipe and an output unit. High one distance of what ground is arranged in the reservoir, which is connected with the reservoir. The negative pressure inlet pipe is arranged on the what transfer pipeline and has an air inlet, the highest liquid level of storable water in the high what in the position of the air inlet reservoir, the negative pressure inlet pipe is supplied be sucked into outside air in the transfer pipeline according to negative pressure, and improves the oxygen content of the water in the transfer pipeline. The output unit is buried in what soil and is connected with the transfer pipeline, is disseminated to the water in the transfer pipeline in soil for what. By the negative pressure inlet pipe, the utility model can auto-admission and be not required to additionally energize irrigated.本新型是有關於一種用於栽培種植於土壤之作物的灌溉裝置，包含一蓄水池、一輸送管路、一負壓進氣管，及一輸出單元。該蓄水池設置高於地面一距離，該輸送管路與該蓄水池相連接。該負壓進氣管設置於該輸送管路上且具有一進氣口，該進氣口的位置高於該蓄水池內可儲存的水的最高液面，該負壓進氣管供用以使外界空氣依據負壓而被吸入至該輸送管路中，並提高該輸送管路中的水的含氧量。該輸出單元埋設於土壤中且與該輸送管路相連接，供用於使該輸送管路中的水散佈至土壤中。藉由該負壓進氣管，本新型可自動進氣且不需額外供能地進行灌溉。
