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劣质果园主要表现为定植品种老化或杂劣,果品产量、质量低下,没有或有很低的果品效益。造成劣质果园的主要原因包括以下几个方面
Poor orchard mainly manifested as planting varieties aging or miscellaneous, fruit production, low quality, there is no or very low fruit benefits. The main reasons for poor orchard include the following aspects