CYLINDRICAL ARTICLE FOR USE IN CONTROLLING GROWTH OF TREE AND METHOD FOR CONTROLLING GROWTH OF TREE |
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| 申请号 | EP00921082 | 申请日 | 2000-04-28 | 公开(公告)号 | EP1175824A4 | 公开(公告)日 | 2005-02-02 |
| 申请人 | PHYTOCULTURE CONTROL CO LTD; | 发明人 | AKAI TATSUO; | ||||
| 摘要 | A cylindrical article characterized as being manufactured of a material which cuts off red lights having a wave length of 560 to 700 nm with a greatest cutting percentage of 30 to 50 % and also cuts off 100 % of ultraviolet lights having a wave length of 400 nm or less; a cylindrical article characterized as being manufactured of a material which cuts off far-infrared lights having a wave length of 700 nm or more with a greatest cutting percentage of 50 to 80 % and also cuts off 100 % of ultraviolet lights having a wave length of 400 nm or less; a cylindrical article characterized as being manufactured of a material which cuts off blue lights having a wave length of 400 to 500 nm with a greatest cutting percentage of 30 to 80 % and also cuts off 100 % of ultraviolet lights having a wave length of 400 nm or less; and a method for controlling the growth of a tree. | ||||||
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| 说明书全文 | |||||||
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