Weed Control System by Water Jet Technology

目前的除草工作有一个课题需要解决。本研究提出不使用除草剂的精确除草系统。如何在不给环境带来不良影响的情况下控制杂草，本研究试图为生物生产的持续发展做出贡献。今年是最后一年，进行了切削条件试验和总结.切割效果与泵压的关系切割通常在泵压高的情况下进行。并且，在切割位置上，每种泵压都存在一个合适的范围。当高压接近喷嘴时，射程有逐渐减小的趋势，变为低压.水射流切割杂草的最佳射束方向水射流射束方向也是一个重要参数。研究发现，在射流方向与杂草植株体成30° ~ 45 °范围内切割效果最好.水射流喷嘴与杂草植株的相对速度虽然改变了相对速度，但对切割效果的影响并不明显。它猜到了切割是瞬间完成的原因。

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.