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所谓苎麻败蔸,是指正处在高产期的壮龄麻,出现麻蔸代谢衰退,地下根茎干枯、腐烂,其地上部表现为麻株普遍矮小,叶子黄瘦的症状。据我们1984～1986年三年在宜春市调查,壮龄麻有20～23％发生了不同程度的败蔸,其败蔸蔸率在5～40％。败蔸麻园每年减产8.6～20.5％,严重的达75％,是苎麻生产一个不可忽视的问题。 一、败蔸的主要原因 1、冬培失时,麻蔸受冻 苎麻是宿根作物,耐寒能力差,一般在0℃左右地下茎就发生冻害。我省(赣南除外)12月份平均
The so-called ramie rancidi, refers to being in high-yielding age nursery hemp, moxa metabolism decline, the underground rhizome withered, decayed, the performance of the upper part of hemp plants are generally small, thin yellow leaves symptoms. According to our 1984 to 1986 three years in Yichun City survey, Zhuang Hemp 20 ~ 23% occurred in varying degrees of defeat, the defeat rate of 5 to 40%. Defeat Ma Park annual reduction of 8.6 ~ 20.5%, a serious up to 75%, is a ramie production can not be ignored problem. First, the main reason for defeat 1 1, the loss of winter training, mochi frozen ramie is a perennial crop, poor cold tolerance, generally about 0 ℃ underground stems occurred frost damage. My province (except Gannan) in December average