红薯在生长期间,无事不要翻藤,许多试验证明,不管在什么地区、气候、土质、茬口和品种条件下,翻藤都会造成减产,一般减产10—15%。其原因是:1.翻藤会损伤茎叶。茎叶是制造养分的器官,在一定范围内,茎叶生长 During the growth of sweet potato, it is not necessary to turn over the vine. Numerous experiments have proved that turning over the vine will result in a decrease of output by 10-15% no matter in what areas, climate, soil quality, stubble and variety conditions. The reason is: 1. Fan vine will damage stems and leaves. Stems and leaves are the organs of nutrients, in a certain range, stems and leaves grow