《论衡·卷十六·商虫篇》
《神农》、《后稷》上记载的收藏种子的方法，是煮马屎用汁水浸泡种子，这样可以使禾苗不生虫。
神农、后稷藏种之方，煮马屎以汁渍种者，令禾不虫。
In the "Shen Nong" and "Hou Ji", the method of storing seeds recorded is to boil horse manure and use the juice to soak the seeds, which can prevent rice seedlings from developing insects.