Zhao, Jiale, Longtu Zhu, Honglei Jia, Dongyan Huang, Mingzhuo Guo, and Yongjiang Cong. 2018. “Automatic Depth Control System for a No-till Seeder”. International Journal of Agricultural and Biological Engineering 11 (1):115-21. https://doi.org/10.25165/ijabe.v11i1.3229.