2013 Volume 75 Issue 3 Pages 189-194
This paper discusses the effect of applying an auxiliary airflow in an air-assisted stripe seeding machine for direct seeding of a paddy. The main flow was the existing airflow for conveying seeds and seeding. We focused on the other airflow to control the movement of the seeds.
The auxiliary airflow attained a speed of 28.0 m/s at the blow head, and the falling speed of seeds was 6.9 m/s. The auxiliary airflow deepened the seeding depth to 7.2 mm.
However the auxiliary airflow also caused directional scattering of falling seeds and widened the seeding width. We found that this problem could be solved by adjusting the direction of the auxiliary airflow.
