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目前,在许多苹果园里存在着一些低产旺树。这些树在冬剪时常因修剪过重,以致翌年旺条满树;如用夏剪调整,经过高温多雨季节,植株仍然
At present, there are some low-yielding trees in many apple orchards. These trees are often over-pruned during the winter shears, so that the next year Wang Wang trees; as adjusted with summer scissors, after high temperature and rainy season, the plants are still