Authors

Abstract

Precision rice broadcasting technology plays a significant role in the mechanization of planting and yield enhancement, with seed friction and mechanical properties being critical factors in seeder design. In this study, experiments were conducted to evaluate the frictional and mechanical properties of different rice seed varieties. The results showed that higher seed moisture content led to reduced flowability and lower mechanical strength. When rice seeds underwent chitting treatment, their viability remained above 90% under external loads not exceeding 20 N or cutting lengths within 1.5 mm. This study provides a theoretical foundation and data support for the design and optimization of direct-seeding machinery, contributing to the advancement of rice direct-seeding technology and equipment.

Abstract in Chinese

水稻精准直播技术对种植机械化和产量提升意义重大，种子摩擦与力学特性是排种器设计的关键。因此，本研究对不同稻种的摩擦与力学特性进行实验。结果表明，种子含水率越高，流动性越差，力学强度越低。当种子处于露白处理后，外部载荷不超过20 N或切除长度不超过1.5 mm时，种子存活率均在90%以上。本研究为水稻直播排种器设计优化提供了理论依据和数据支持，推动了水稻直播技术及装备发展。