| 摘要 |
<p>The system is for automatically watering plants in greenhouses. It has a water supply tank, whose water inlet mechanisms supply for a contant water level and whose outlet is connected, via an emptyable tank at a level below that of the supply tank, to a watering system. Consequently, water can be fed in low volumes to the soil ro to the plants and the system can be adjusted to produced the watering volume suited to the requirements. The water supply tank or its level control mechanism can be adjusted in height with respect to the effective outlet level of the connecting mechanism to adjust the watering volume.</p> |
