Seedling raising sheet and seedling raising method using the seedling raising sheet

Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 本発明の目的は、優れた植物育成適性と十分 な強度を併せ持ち、たとえマット形成が不良でも田植機 への装着を可能とし、また、乳苗育苗にも対応できるな ど、育苗作業における作業性改善及び効率向上を図り得 る育苗シートとその育苗シートを用いた合理的かつ効率 的な育苗方法を提供することにある。 【解決手段】 本発明に係る育苗シートは、化学処理を 受けておらず、かつ実質的にフィブリル化されていない セルロース系繊維を５０〜９０重量％含有する親水化処 理シートであって、該シートの厚さが０．８〜５ｍｍ、 密度が０．１〜０．５ｇ／ｃｍ 3 であり、かつ２０℃の 蒸留水に５分間浸漬後の該シートの繊維配向方向及びこ れと直角をなす方向について測定して両者の平均を求め た湿潤引張強度（ＪＩＳ Ｐ−８１１３に基づく測定） 及び湿潤裂断長（ＪＩＳ Ｐ−８１１３に基づく測定） のそれぞれは該湿潤引張強度が０．２〜１．０ｋｇ／１ ５ｍｍ幅で、該湿潤裂断長が０．０２〜０．１ｋｍのも のである。 (57) [Summary] [Object] The object of the present invention is to have excellent suitability for plant growth and sufficient strength, to be able to be attached to a rice transplanter even if mat formation is poor, and to cope with nursery seedlings. It is an object of the present invention to provide a seedling raising sheet capable of improving workability and efficiency in seedling raising work, and a rational and efficient seedling raising method using the seedling raising sheet. SOLUTION: The seedling raising sheet according to the present invention is a hydrophilized sheet containing 50 to 90% by weight of a cellulosic fiber which has not been subjected to a chemical treatment and is not substantially fibrillated. 0.8 to 5 mm thick, The density of the sheet was 0.1 to 0.5 g / cm 3 , and the sheet was immersed in distilled water at 20 ° C. for 5 minutes, and then measured for the fiber orientation direction and the direction perpendicular thereto, and the average of the two was determined. Wet tensile strength (measured based on JIS P-8113) And wet tear length (measured based on JIS P-8113) Each have a wet tensile strength of 0.2 to 1.0 kg / 1. It has a width of 5 mm and a wet breaking length of 0.02 to 0.1 km.

Inventors

• 👤 Yoshihiro Saito
• 👤 藤 芳 廣 斎

Bibliographic Details