Nonwoven fabric for hydroponics rice seedling

摘要

PPROBLEM TO BE SOLVED: To provide a nonwoven fabric for hydroponics raising seedling of rice plants for making germination growth equal, enabling uniformly and easily scraping off with a rice transplanter and improved workability at the time of setting the nonwoven fabric on a hydroponics raising seedling device. PSOLUTION: The nonwoven fabric for hydroponics raising seedling of rice plants is made of a cellulosic fiber and has a basis weight of 15-50g/mSP2/SP. In the nonwoven fabric, 50-150 opening holes/inchSP2/SPof a diameter of 1.0-2.5 mm exist. The strength in the longitudinal direction of the nonwoven fabric is 5.0 Kg/5cm and the strength in the cross direction is 1.1 Kg/5cm. The bending resistance of the longitudinal direction and the cross direction is 40 mm. At least part of the surface of the fabric is coated with a biodegradable polyvinyl alcohol resin. PCOPYRIGHT: (C)2005,JPO&NCIPI