Design and Testing of a Punching-on-Film Precision Hole Seeder for Peanuts

作者：Jianming Kang, Qiangji Peng, Chunyan Zhang, Ningning Zhang, Huimin Fang · 发表于：Transactions of the ASABE · 年份：2020 · DOI：10.13031/trans.13967 · 被引用次数：11 · 研究领域：Soil Mechanics and Vehicle Dynamics、Agricultural Engineering and Mechanization、Peanut Plant Research Studies

Highlights The designed precision seeder meets the agronomic requirements for on-film hole seeding. Influencing factors were found by studying the operating principle and key parameters. A response model was successfully built and verified by experiments. This study provides technical support for punching-on-film hole seeding technology. Abstract . To satisfy the agronomic requirements for punching-on-film precision seeding of peanuts, a precision hole seeder was designed in this study. The seeder can perform simultaneous functions of film mulching, film punching, pipe laying, precision hole seeding, and seed covering. The overall structure and operating principle of the device were analyzed, and its major components, including a seed-metering device, soil-covering roller, and drip irrigation pipes, were theoretically studied. To optimize the operating parameters and achieve favorable performance, a three-factor quadratic orthogonal test was performed to test the effects of the vacuum chamber pressure, advancing speed of the seeder, and height of the type hole boss on the seeding performance; the variance and range of the test results were analyzed accordingly. Through the field experiments, when the vacuum chamber pressure, advancing speed of the seeder, and height of the type hole boss were optimized to 7.5 kPa, 4.2 km h-1, 5.3 mm, respectively, the qualification index, re-seeding index, and miss-seeding index of the seeder were 92.7%, 3.8%, and 3.5%, respectively. Thus, th...