The effect of natural weed buffers on soil and nitrogen losses in Japan

Because 99.6% of the soil and 80.0% of the nitrogen components were captured, we concluded that the natural weed buffer was very effective in minimizing soil and nitrogen losses. As Japanese farmers grow older and more agricultural fields in the semi-mountainous regions of Japan fall into disuse, the natural weeds that grow on those fields may become efficient tools for conserving the soil and water in these regions.