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苹果栽培中,鉴于稀植大冠受益慢,小冠密植不好管的缺欠,普遍实行了株距4米、行距5米的中冠形栽培。笔者根据稀植大冠的树体结构和密植小冠的整枝方法,设想一种中冠苹果树形。 一、树形结构前20年有较明显的 中心领导干。中心干上三个主枝,第一主枝安排在南面,距地面90厘米左右,
Apple cultivation, in view of the benefits of planting a large crown of slow, small crown close bad pipe imperfections, the general implementation of a spacing of 4 meters, spacing 5 meters in the crown culture. According to the author of the tree-planting structure of the crown of sparsely-grafted crown and the pruning method of planting a small crown, a kind of crown apple tree is conceived. First, the tree structure in the first 20 years have more obvious leadership of the center. The center of the three main branches dry, the first main branch arranged in the south, about 90 centimeters from the ground,