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辽宁省苹果栽培始于1905年,现在已有80多年的历史。人们在长期的生产实践中不断地探索新技术,栽培制度也随之发生很大变化。其中就苹果栽植密度而言,则逐步由稀植趋向于密植,由栽培初期的亩栽6.6株,增加到现在的亩栽33株,为初期的5倍。事实证明,密植较稀植优越,且按发展的观点看,亩栽株数比现行的还可大大增加。目前,不少科研或生产单位进行了高密栽培的尝试,并已取得了成功或进展。中国果树所,1974年在陕西省宝鸡县天王
Liaoning Province, apple cultivation began in 1905, now has 80 years of history. People constantly explore new technologies in long-term production practices, and the cultivation system also changes greatly. Among them, in terms of planting density of apples, it gradually tended to be closely planted by sparse plants. From the early stage of cultivation, 6.6 plants were planted and 33 plants were planted to the present, accounting for 5 times of the initial stage. Facts have proved that dense planting thinning superior, and according to the development point of view, the number of planted acres than the current can be greatly increased. At present, many scientific research or production units have conducted experiments on high-density cultivation and have achieved success or progress. China fruit trees, in 1974 in Baoji County, Shaanxi Province, King