| 摘要 |
PURPOSE:To obtain the title sheet having excellent working property and rearing property by cutting aluminum foil so as to lay on the soil surface of root part of agricultural crops and boring hole in which stem of root of agricultural crop is put and simultaneously giving notch toward the peripheral part by the hole. CONSTITUTION:The aimed sheet obtained by cutting aluminum foil (preferably obtained by attaching film of PE, PP, etc., woven fabric, etc., to the rear face of foil) 1 in a form capable of laying on the soil surface of root part of agricultural crop, boring a hole 2 in which stem of root of agricultural crop is put in the central part and simultaneously giving notch 3 toward the peripheral part from the hole 2. |
