The invention relates to a
sea grass land restoration and reconstruction technology and particularly relates to a natural
ripening accelerating and
sowing method and device for a subtidal eelgrass reproductive
plant. The method comprises the steps of clamping an eelgrass reproductive
plant on a natural
sea grass land onto a main
rope and a side
rope of a device, and then, putting the device for fixing the eelgrass reproductive
plant into a proper natural sea area to carry out natural
ripening accelerating and
sowing on the eelgrass reproductive plant, wherein the device is sequentially provided with a floating ball, the main
rope and a dropstone from top to bottom, the floating ball and the dropstone are respectively arranged at two ends of the main rope, and the main rope of which one end is provided with the floating ball is provided with the side rope along the length direction. By using the natural
ripening accelerating and
sowing method and device, an eelgrass seed can ripen and naturally drop, so that the collecting problem that the eelgrass seed does not ripen or the ripened seed drops is solved, and the sowing difficulty of
seabed sea grass in a relatively deep subtidal
water area is also overcome; by combining the simple, convenient and effective eelgrass sowing method, an eelgrass sea
grass land in the relatively deep subtidal
water area can be conveniently and rapidly restored or reconstructed; and meanwhile the device disclosed by the invention can be recycled, so that the cost can be reduced, and the used material cannot pollute the sea area.