The invention discloses a pneumatic
pollination control device for large row ratio
hybrid rice seed production. The pneumatic
pollination control device comprises a base, wherein rolling wheels are installed at the bottom of the base, and the base is connected with a push
handle; a lifting device is installed on the base and an
air pump is installed on the lifting device; an L-shaped
pollination tube is connected to the air outlet end of the
air pump, and strip-shaped air nozzles are formed in two sides of the L-shaped pollination tube; L-shaped
pollen collection tubes are installed above andbelow the L-shaped pollination tube, and strip-shaped trumpet-shaped
pollen collection ports are formed in two sides of the L-shaped
pollen collection tube; filter screens are installed at the pollencollection ports; the L-shaped pollen collection tubes communicate with an air inlet of the
air pump; and the air pump and a stepping motor are in
wireless or wired connection with a
wind speed and direction sensor.
Pollen which is not adhered to rice can be recovered and ejected again, so that the pollination rate of rice is increased, intensity of ejected
airflow can be adjusted according to thewind direction and the
wind force, and most of the pollen can fall to a preset falling place.