灰粪
词典Grey stools：[医]灰粪。
1. 传统农业时代广东地区山区和平原分别以获取灰粪和泥肥作为主要肥源。 During the time of traditional agriculture in Guangdong, the main manure source of mountainous areas was ash, while in the plains, the main manure source was the river filth.