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丰脐是中国农学会柑桔考察团在美国考察期间于1977年从美国引回。经作者长期培育,多年观察比较,在我国十余个省区多点试种,
Feng Umbilicus is a citrus delegation from the Chinese Society of Agriculture which was withdrawn from the United States in 1977 during his visit to the United States. After long-term cultivation of the author, many years of observation and comparison, more than 10 provinces and autonomous regions in China try planting,