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１９９２～１９９３年，在黄河故道地区苹果考察中发现，南京军区大沙河果品基地（徐州沛县境内）、丰县大沙河果园、安徽省砀山县葛集乡前进果园等单位生长的长富２号苹果在着色程度、可溶性固形物、耐贮性等方面，表现出一定的差异性，认为除与肥水、果实负载量、修剪程度等
From 1992 to 1993, during the inspection of the apple in the old course of the Yellow River, it was found that Changfu No. 2 apple, grown in units of Dashahe Fruit Base of Nanjing Military Region (Peixian territory in Xuzhou), Dashahe Orchard of Fengxian County, Qianjin Orchard of Geji Township in Dangshan County of Anhui Province, In the degree of coloring, soluble solids, storage and so on, showed some differences, that in addition to fertilizers, fruit load, such as the degree of pruning