几个品种梨在济南的引种栽培表现

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济南军区生产基地位于黄河三角洲,果树栽植面积666.7hm2,其中梨树400hm2。基地属于环渤海湾地区暖温带大陆性季风气候,气候温和,四季分明。年均气温12.8℃,无霜期206d,≥10℃积温4300℃,年均降 Jinan Military Region production base is located in the Yellow River Delta, fruit planting area of ​​666.7hm2, of which pear 400hm2. The base belongs to the warm temperate continental monsoon climate in the Bohai Bay region, with a mild climate and distinct seasons. Average annual temperature 12.8 ℃, frost-free period 206d, ≥ 10 ℃ accumulated temperature 4300 ℃, annual average down
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