Weed Control System by Water Jet Technology

在目前的除草工作中，有一个亟待解决的课题。本研究提出了一种不使用除草剂的精确除草系统。它是如何在不给环境造成不良影响的情况下控制杂草。本研究旨在为生物连续生产做出贡献。今年是最后一年，对切削条件进行了试验和总结。切割效果与泵压力的关系通常在泵压力高的情况下进行切割。并且，在切削位置存在各种泵压力的适用范围。当高压离喷嘴越近，该范围就越有减小的趋势，它变成了低压。水射流光束切割杂草的最适宜方向也是水射流光束方向的一个重要参数。结果表明，在喷流方向为杂草体方向30°~ 45°的范围内，喷流效果最好。水枪与杂草之间的相对速度虽然改变了相对速度，但对切割效果的影响不明显。它猜出了原因：切割是暂时完成的。

There is a subject to solve in the present weeding work. This research proposes the precise weeding system which doesn't use a herbicide. It is how to do control of weeds without giving an environment a bad influence.This research tried to contribute to the continuous biological production. This year was the final year, and the experiment of the cutting condition and a summary were done.1. Relationship between cutting effect and pump pressureCutting was often done as much as pump pressure was high. And, the range that it was suitable for every pump pressure existed in the cutting position. The range showed a tendency of going away as much as it was as close as the high pressure to the nozzle and it became low pressure.2. The most suitable direction of water jet beam for cutting weed plantAs for the beam direction of water jet as well, it was an important parameter. It was found out that effect was high when it was cut in the range in the jetting direction 30°to 45 °toward weed plant body.3. Relative speed between water jet nozzle and weed plantThough a relative speed was changed, an influence on cutting effect didn't get clear. It guessed the reason that cutting was done momentarily.