作　　者： ; ; ; ;

机构地区： 华南农业大学资源环境学院

出　　处： 《果树学报》 2011年第2期340-343,共4页

摘　　要： 为探讨香蕉体内氮磷钾的含量及分布特点,采用整株肢解法,研究了香蕉不同生育期根、球茎、假茎、叶及果、果轴的氮、磷和钾含量。结果表明,不同生育时期,香蕉根系、假茎、球茎、叶、果实和果轴6个器官中的氮磷钾含量与分布不同。在香蕉抽蕾前,氮分布为叶>球茎>假茎>根系,磷为假茎>叶>球茎>根系,钾为假茎>根系>叶>球茎;抽蕾后,氮、磷和钾在香蕉体内重新分配,表现为,氮为叶>果轴>球茎>根系>果实>假茎,磷为果轴>果实>叶>球茎>根系>假茎,钾为果轴>假茎>根系>球茎>叶>果实。但是,同一器官中,氮磷钾含量均表现为钾>氮>磷。 To research into the distribution characteristic of N,P and K contents in banana,banana trees were uprooted and divided into 6 parts in the growth phase and N,P and K contents of different parts were measured.Results showed that nitrogen,phosphorus and potassium contents of root,corm,pseudostem,leaves,fruit and columella were different in the growth phase.Before shooting of banana,nitrogen content was in rank of leaf corm pseudostem root,phosphorus content in rank of pseudostem leaf corm root,potassium in rank of pseudostem root leaf corm.Nitrogen,phosphorus and potassium of banana were redistributed after shooting.Nitrogen content was in rank of leaf columella corm root fruit pseudostem,phosphorus content in rank of columella fruit leaf corm root pseudostem,potassium in rank of columella pseudostem root corm leaf fruit.However,nitrogen,phosphorus and potassium contents in the same part were all in rank of nitrogen potassium phosphorus.

关 键 词： 香蕉 氮磷钾 分布

领　　域： [农业科学] [农业科学]