Research Status and Trends of Maize Planters for Hilly and Mountainous Areas

Abstract

Hilly and mountainous areas are important maize-producing regions in China. However, due to complex terrain, limited economic conditions, and a lack of suitable machinery, the mechanization level of maize sowing in these regions has long lagged behind that of plain areas, becoming a key bottleneck restricting industrial development. Focusing on maize seeders suitable for hilly and mountainous areas, this paper begins with the types of seed metering devices, summarizing mechanical types such as fluted roller, cell wheel, spoon wheel, and turntable structures, as well as typical representatives of pneumatic seed metering devices, and analyzes their working principles and applicable characteristics. On this basis, relevant research progress both domestively and internationally is reviewed: foreign countries started earlier and have continuously advanced in areas such as precision seeding, pneumatic metering, structural optimization, and electric drive; since the 1980s, China has developed various small-scale seeders—including hand-held, pedal-operated, self-propelled, and electromagnetic vibration types—for small plots and complex terrain, achieving certain progress in adaptability. However, from the perspective of practical application, current small-scale maize seeders still commonly suffer from insufficient reliability, poor adaptability, and weak versatility, with a notable shortage of specialized models suitable for hilly and mountainous areas. Considering actual agricultural production needs and technological development trends, future improvements in such seeders should focus on multi-function integration, intelligent control, and environmental sustainability to better accommodate the planting conditions and mechanization development requirements of hilly and mountainous regions.