一、前言目前日本市场上销售的大型制钵机,虽然其性能良好,可以制造不同规格的营养钵,但价格高,个体农户使用不经济。为此,日本蔬菜试验场设施栽培部先后试制了两种(简易型、改进型)结构简单的人 I. Introduction At present, large-sized mortar machines sold on the Japanese market, though of good performance, can produce nutritional bowls of different specifications, but the prices are high and the use of individual farmers is not economical. To this end, the Japanese vegetable field test facility cultivation department has trial-produced two (simple, improved) simple structure of people