Commercial wood particles were used. The agricultural
lignocellulosic fibers used in this study were rice
straws. After removing the top 10 cm the rice straw
stalks were cut into three sections top, center and bottom,
the rice straw particle was prepared by cutting each
of the sections of the rice straw into 2or 4 cm lengths.
The particle width depended on the native straw stem,
which was wider at the bottom than at the top.