Abstract
A punching mechanism was developed for placing seeds of leaf vegetables directly into precut cells of urethane mat in hydroponic seedling production of leaf vegetables. The mechanism has twelve punchers, which are in the form of a hollow cone to penetrate into urethane mat for seed placement. The mechanism was attached and synchronized to the conventional vacuum seeder. When punchers penetrate the urethane mat, seeds are discharged from nozzles and delivered to punchers through tubes. Seeds of mustard spinach were used for the performance test. Punchers with outer diameter of 3.0 mm and cone index angle of 10 degrees could successfully penetrate into pre-cut cells of urethane mat. The punchers accurately placed the seeds at pre-determined punching depth of 3.0 mm with seeding efficiency of 96.5%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
