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白银市地处甘肃中部,黄河上游,日照充足,热量丰富,昼夜温差大,土地广阔肥沃,为苹果和梨树的生长创造了优越的自然条件。但近两年来在有些果园中发现果树经大量结果以后,中后部枝条光秃较严重,影响了高产稳产。其主要原因:一是品种特性造成,即有些品种特别是梨的大多数品种成枝率低,造成后部光秃;二是管理技术造成,即在管理中没有注意枝组的培养,结果枝经大量结果后衰老枯死,造成内膛光秃。针对这一
Silver City is located in central Gansu, the upper reaches of the Yellow River, adequate sunshine, abundant heat, large temperature difference between day and night, the vast fertile land for the growth of apple and pear trees created superior natural conditions. However, after some fruit trees were found in some orchards in the recent two years, after the large number of fruit trees were found, the bareness in the middle and rear branches was more serious and affected the high and stable yield. The main reasons: First, the characteristics of varieties caused by the fact that most varieties of some varieties, especially pear branch rate is low, resulting in the back of the bare; second is caused by management techniques, that is, in the management did not pay attention to branch group culture, the results branch After a large number of results aging wither, resulting in bare bore. For this one