| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject structured material consisting essentially of a biodegradable raw material, enabling the simplification of a conventional agricultural method and the work saving, industrially easily and at a low cost by containing husked rice in a specific part thereof. SOLUTION: This string like structured material for direct sowing of rice, consists of essentially a biodegradable material, and has a part 1 of a high strength-keeping rate and a part 2 having a low strength-keeping rate alternately. The part 1 having a high strength-keeping rate is a cylindrical structured material having up to 3 mm thickness, and at least one grain of a husked rice is contained in the part 1 having the high strength-keeping rate. In this case, the part 1 having the high strength-keeping rate is preferably a fiber consisting mainly of a polylactic acid.
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