芋氮磷钾吸收规律的研究  

Absorption Law of Nitrogen,Phosphorus and Potassium in Two Taro Cultivars

作　　者：杨佳[1] 王必武 黄立强 吴惠生 张德才 喻霞[5] 郑兴飞[5] 胡中立[5] 刁英[1,5] 

机构地区：[1]重庆文理学院林学与生命科学学院,重庆402168 [2]湖北省仙桃市土壤肥料工作站,湖北仙桃433001 [3]湖北省建始县土壤肥料工作站,湖北建始445300 [4]湖北省土壤肥料工作站,武汉430070 [5]武汉大学生命科学学院,武汉430072

出　　处：《湖北农业科学》2016年第14期3562-3565,共4页Hubei Agricultural Sciences

基　　金：国家科技支撑计划项目(2012BAD27B02)

摘　　要：采用凯氏定氮法、钼锑抗显色法、火焰光度计法对芋[Colocasia esculenta(L.)schott]的两个品种各器官中的氮、磷、钾含量进行测定,研究芋植株对氮磷钾的吸收与分配规律。结果表明,在幼苗期,氮磷钾的分配主要集中在芋的叶片和叶柄中,氮以叶片中居多,钾以叶柄中居多;从发棵期开始,氮磷钾主要分配在芋的球茎中。In order to study the law of absorption and distribution of N,P,K in taro,Kjeldahl method,Mo-Sb colorimetric method, flame photometric method were used to test the content of K,P,K in two taro [Colocasia esculenta（L.） schott] cultivars. The results showed the similar absorption and distribution rule of N,P,K in the two cultivars. At the seedling stage, N,P,K distributed mainly in taro leaves and petioles, the majority of nitrogen was in leaves and most potassium was in petioles.Since leaf vigorous growth stage,N,P,K mainly distributed in the bulbs.

关 键 词：芋[Colocasia esculenta(L.)schott] 氮 磷 钾 吸收分配 

分 类 号：S632.3[农业科学—蔬菜学]