Lei Wang, Yitao Liao, and Qingxi Liao
Design, remote control, planter, Chinese cabbage vegetable, precision seeding
The planting area and yield of Chinese cabbage vegetable in China are large, but the level of mechanized operations is lower. One of the reasons is that sizes of them are too small to control the seeding rate accurately by the seeding machine. In order to solve this problem, a novel small precision vegetable planter was developed. The main structure and technical parameters of the novel prototype were introduced and an experiment was conducted to confirm the performance of the prototype. A mini crawler type tractor and a pusher remote manipulator system were employed as mating power so that the prototype can be used for sowing in greenhouse, and hill and mountainous region. An inside-filling pneumatic centralized metering device was applied specially for the purpose of sowing the small seeds precisely, which enables to suck very small seeds singly via suction holes. The experimental results indicated that the minimum turning radius of the complete machine was 1.8 m and the slip ratio of the land wheel ranged from 6% to 8%. Each row consistency variability coefficient of seeding mass was below 9.5% and the stability variability coefficient of the overall seeding mass was below 5%. Field experiment results revealed that the seed emergence rate using the planter was satisfactory. It indicated that this planter could be applied to actual agriculture production.
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