| 摘要 |
The invention concerns an irrigation method using a rotary water gun (100) with slow return consisting of a water outlet spray nozzle support tube (120) having a rotary motion back and forth over an angular sector about a vertical shaft, said nozzle support tube (120) comprising a counterflow lever (130). The inventive method is characterised in that it consists in placing according to a specific timing, an additional obstacle (O) for the jet from the nozzle outlet of said support tube (120) such that the countered water jet irrigates the periphery next to the water gun when the watering cycle starts and ends. The invention is useful for crop irrigation. |
