Safety and Efficiency for Weeding Work and Form of Levee Slope on Paddy Field in a Steep Sloping Area

通过对已完成土地整理的水田进行调查，明确除草堤防的形式和除草工作的前提条件。为了安全高效地进行除草作业，我们提出了堤坡的形式和布置。结果表明：1)由于除草作业需要使用电动割草机进行繁重的劳动，农民们想出了各种方法来减轻这一工作。但部分农户因劳动强度大，应停止除草。2)除草方法不同，堤坡部位不同，除草效果也不同。由于坡脚采用劳动强度大的修剪方法，不可避免地会增加工人的体力负担。3)设置护道对于安全高效的除草工作是非常重要的，因此，我们提出了减少闲置土地的护道形式，并设计在坡体中部和坡脚设置护道形式。

We investigated on the paddy field, in which land consolidation has been achieved, to clarify the form of weeding levee and the preset condition of weeding work. We proposed the form and the arrangement of levee slope for safe and efficient weeding work.Results obtained are as follows :1)As heavy labor by using power grass cutter needs for weeding work, farmers are used to devise various methods to lighten the work. But some farmers should stop the levee weeding work due to their heavy labor.2)The weeding work varies with method and the part on the slope of levee. As the trim-up method which needs heavy labor is adopted at the slope toe, worker's physical burden may inevitably increase. It may be expected the countermeasure to lighten for weeding work at the slope which is needed heavy labor, especially at the toe of the slope.3)To set berm is very important for safe and efficient weeding work, so, we proposed the berm form reducing unusable land, and devised to set berm form both at the middle of the slope and slope toe.