Structural design and kinetic analysis of precise seed planter for tray seedling Hantao Zou, Yunde Shen, Zhenmu Chen, Chenghao Zhang, Minliang Wang and Mingge Wu E3S Web Conf., 438 (2023) 01022 Published online: 26 October 2023 DOI: 10.1051/e3sconf/202343801022