山东省莱阳农学院于1990年初开始研究无加温冬季早熟、半早熟单薄优质高产栽培技术，经过3年多时间的探索反复试验，首创了促进草莓花芽分化的砂培技术；筛选出了个人味美、品质优良、花芽分化快、休眠期短、适于早熟和半早熟喀麦新品种，确定了在北方气候条件下．早熟品种适宜 Laiyang Agricultural College in Shandong Province in early 1990 began to study no warmer winter precocious, semi-precocious thin high-yielding high-yielding cultivation techniques, after more than three years of exploration and trial and error, pioneered the promotion of strawberry flower bud differentiation sand culture technology; filtered out personal taste , Good quality, fast flower bud differentiation, short dormancy, suitable for precocious and semi-precocious new varieties of Cameroon, identified in the northern climate conditions. Premature varieties suitable