葡萄的主要树形及培养
一、独龙干形
独龙干形是每一单株发出的一个主干,一直延伸到架顶,主蔓上直接着生结果枝组的树形。独龙干为我国北方埋土防寒栽培区常见树形。主要用于棚架栽培,树长4~6m,结果枝组直接着生在主干上,每年冬季结果枝组采用单双枝修剪。
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培养过程
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2. 单干水平树形及培养
单干水平树形,主要包括单干单臂树形、单干双臂树形和倾斜式单干水平式树形,其中单干单臂和单干双臂用于非埋土防寒区,倾斜式单干水平树形主要用在埋土防寒区。
单干单臂树形培养过程
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单干双臂树形培养过程
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倾斜式单干单臂树形培养过程
该树形与单干单臂树形的培养极为相似,定植时所有苗木均采用顺行向倾斜20~30°定植。新梢到达定干线后,不摘心,继续沿着定干线向前培养。
3. “H”树形及培养
“H”树形整形规范,新梢密度容易控制,修剪简单,易于掌握;结果部位整齐,果穗部位基本呈直线排列,利于果穗和新梢管理。适应于水平式棚架,葡萄行上葡萄树株间、行间的距离均为4~6m。
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"H"树形培养过程
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