由于EDEM (离散元法) 中建立的玉米种子颗粒模型与实际玉米种子在外形,
表面粗糙度等方面存在差异, 若直接将实际测量的物性参数引入EDEM 中进行仿真 …

Mechanized rice direct seeding is a cost-effective and efficient approach for rice cultivation.
Recently, the use of rice direct seeding has been increasing rapidly owing to rural labour …

The pneumatic metering device has the advantages of high qualified index, less mechanical
damage to seeds and good adaptability for high-speed operation. But traditional calculation …

因中草药三七种植属于密集型精密种植模式, 尚无满足种植要求的播种机,
为解决三七机械化精密播种问题, 研究设计了一种气吸滚筒式精密排种器. 该文阐述了三七气吸 …

Highlights•Method to improve hole-filling performance of seeding device at large sowing
rates.•Theoretical analysis, coupling simulation and field experiment involved.•Hole-filling …

Pneumatic metering device has been increasingly widespread for the advantages of high
planting quality, low seed-injuring rate, strong adaptability to seeds and higher planting …

In order to meet the agronomy demand for hybrid rice direct seeding, a novel precise
pneumatic rice seed metering device was designed with groups of sucking holes plate, by …

For the purpose of reducing the number of conventional seed-metering devices and high
demand for vacuums, this study designed a vacuum central drum seed-metering device, that …

The precision seeding technique has been developed at full speed along with the
continuous development of new agricultural technologies, especially those concerning …

Vacuum-type pneumatic metering device has gradually replaced traditional mechanical
seeder and been widely used for corn precision planter in China because of its low damage …