Abstract: The seedling quality and the yield of mechanical-transplanting early rice under different seedling\|raising ways （bast fiber film as base cloth liner in hard disk seedling or for the upper cover materials） were studied. The results indicated that the effects of bast fiber film as base cloth liner in hard disk seedling or for the upper cover materials on seedling quality of mechanical\|transplanting rice were significant. In those two treatments， the seedlings were stocky and the root system developed well， the seedling height decreased， root intertwisting ability increased， the root dry weight increased and root\|shoot ratio increased. The bast fiber film as base cloth liner in hard disk seedlings promoted the indexes including root length， surface area， branch number， crossing number， and number of root tips. Compared with the control， the yield in the treatment of the bast fiber film as base cloth liner in hard disk seedlings were increased remarkably. Therefore， The bast fiber film as base cloth liner in hard disk seedlings or for the upper cover materials were worthy to be extended in larger area in rice production.

Key words: bast fiber film, mechanical transplanting, rice seedling raising, seedling quality, yield