| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of reliably developing conventional perennial herb vegetation at slopes, etc. SOLUTION: Above the rhizomes, rootstocks or seeds of perennial herb or around their seedlings 6 arranged on a ground N, is covered with a sheet member 4 having at least one or more of the functions of grass elimination, ground surface erosion prevention, drying prevention, temperature insulation and ambient plant intrusion prevention. COPYRIGHT: (C)2005,JPO&NCIPI
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