针对种穴施保水剂,要先按穴施入,施后再播种或移栽费时费力的问题,设计了施保水剂与播种同步进行的排种器,且播前保水剂与种子分开放置,而播后保水剂与种子同穴,分布于种子周围。本文阐述了其结构特点和工作原理,分析其主要工作过程,对关键部件进行设计。田间试验表明,该排种器性能稳定,保水剂用量精确,应用效果较好。 For the seedling Shi Bao water agent, the first point to be applied, sowing or transplanting after Shi Shi time-consuming and laborious problems, designed Shi Bao water agent and sowing in synchronization with the seed metering device, and sowing water before planting and seeds placed separately, After sowing agent and seeds with water, distributed around the seeds. This paper describes its structure and working principle, analyzes its main work process, and designs the key components. Field experiments showed that the performance of the seed metering device is stable, the amount of water retaining agent is accurate and the application effect is better.