| 摘要 |
PROBLEM TO BE SOLVED: To provide weed-proof structure avoiding the growth of weeds at the connected and fixed parts of weedicide sheets to wither weeds. SOLUTION: On assumption that there is a defect in fixing and connecting the weedicide sheets in view of a conventional method of pressing down by force, the extending direction of weeds in bud is changed to prevent the weeds from coming out of the weedicide sheets. Photosynthesis is thereby inhibited to etiolate the weeds to become like beam sprouts, and stored nutrients are dried up to wither the weeds. COPYRIGHT: (C)2009,JPO&INPIT
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