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经过 5年观察认为 ,次郎宜在青岛地区栽培。栽培中对该品种的生物学特性和生长表现进行了观察记载 ;结合早期试验 ,总结了配套栽培技术
After five years of observation that Jiro should be cultivated in Qingdao. The biological characteristics and growth performance of the cultivars were observed and recorded in cultivation. Combining with the early experiments, the cultivation techniques