| 固定式喷灌系统 |
| 添加时间：2019/1/25 15:03:11 浏览次数： |
| 固定式喷灌系统 Fixed sprinkler irrigation system 除喷头外，各组成部分在长年或灌溉季节均固定不动。干管和支管多埋设在地下，喷头装在由支管接出的竖管上。操作方便，效率高，占地少，也便于综合利用（如结合施肥、喷农药等）和实现灌溉的自动控制。但需要大量管材，单位面积投资高。适用于灌溉频繁的经济作物区（如蔬菜种植区）和高产作物地区。 Except for sprinklers, all components are fixed in the long-term or irrigation season. The main pipe and branch pipe are mostly buried underground, and the sprinkler head is installed on the vertical pipe www.huafenchimoju.cn www.mingheertui.com www.luyanshimoju.net.cn www.helesuliao.com www.shidiao820.com www.weishengzhiji.cnconnected by the branch pipe. It has the advantages of convenient operation, high efficiency and less land occupation. It is also convenient for comprehensive utilization (such as combined fertilization, pesticide spraying, etc.) and automatic control of irrigation. But a large number of pipes are needed and the investment per unit area is high. It is suitable for cash crop areas with frequent irrigation (such as vegetable growing areas) and high-yield crop areas. 半固定式喷灌系统 Semi-fixed sprinkler irrigation system 喷灌机、水泵和干管固定，而支管和喷头则可移动。移动的方式有人力搬移、滚移式，由拖拉机或绞车牵引的端拖式，由小发动机驱动作间歇移动的动力滚移式、绞盘式以及自走的圆形及平移式等。其投资比固定式喷灌系统少，喷灌效率较移动式喷灌系统高。常用于大田作物。 The sprinkler, the pump and the main pipe are fixed, while the branch pipe and the sprinkler head can be moved. The moving modes include manual moving, rolling type, end-towing type tractor or winch traction, power rolling type, winch type, circular and translational type, which are driven intermittently by small engine, etc. The investment is less than that of fixed sprinkler irrigation system, and the efficiency of sprinkler irrigation is higher than that of mobile sprinkler irrigation system. It is often used in field crops. |
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