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苹果园常见的缺素症及其防治河北省衡水农业学校（０５３０００）张新霞苹果园常见缺素症主要有：苹果缩果病、苹果小叶病和苹果苦痘病。一、症状１．苹果缩果病是由于缺硼引起的病害。其症状可以表现在新梢和果实上，而以果实上的症状表现突出，能造成产量和质量上重大损...
Common lack of apple orchards and its prevention and treatment of Hengshui Agricultural School of Hebei Province (053000) Zhang Xinxia common lack of Apple Orchard are: fruit shrinkage of apple, apple leaflet disease and apple bitter pox disease. First, the symptoms 1. Apple shrinkage disease is due to boron deficiency caused by disease. Its symptoms can be reflected in the shoots and fruits, while the outstanding performance of the symptoms on the fruit can cause a significant loss of yield and quality ...