1991年冬 ,南丰蜜桔遭遇到历史上罕见的特大冻害 ,使当时的 0 54万ｈｍ2 面积损失了 80 %。自1992年以后 ,普遍采取了计划密植的方式种植南丰蜜桔 ,一般每 666 7ｍ2 种植都在 10 0株以上 ,起到了迅速恢复发展南丰蜜桔的效果 ,使在冻后的第 6年( 1997年 )面积达到了 1 12万ｈｍ The winter of 1991, Nanfeng tangerine encountered a rare history of extraordinary frost damage, so that the loss of 0 540000 hm2 area 80%. Since 1992, planting Nanfang tangerines has been adopted in a densely planted manner. Generally, planting more than 100 plants per 666m2 of planting area has achieved the effect of rapidly resuming the development of Nanfeng tangerine so that in the 6th year after freezing (1997) area reached 1120000 hm