He, Xing, Wang Zaiman, Luo Xiwen, Cao Xiaoman, Liu Chunbo, and Zang Ying. 2017. “General Structure Design and Field Experiment of Pneumatic Rice Direct-Seeder”. International Journal of Agricultural and Biological Engineering 10 (6):31-42. https://doi.org/10.25165/ijabe.v10i6.3142.