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川半夏生长期氮、磷、钾营养吸收特性研究
引用本文:申浩,吴卫,郑有良,李敏,刘千.川半夏生长期氮、磷、钾营养吸收特性研究[J].中国中药杂志,2010,35(1):22-26.
作者姓名:申浩  吴卫  郑有良  李敏  刘千
作者单位:1. 四川农业大学,农学院,四川,雅安,625014
2. 成都中医药大学,四川,成都,610075
基金项目:国家科技支撑计划项目(2006BAI06A11-10)
摘    要:目的:在栽培条件下研究川半夏对氮、磷和钾营养吸收特性,为川半夏高产栽培和合理施肥提供依据。方法:定期采集川半夏S-29和S-33样品,分别测定其各自地上和地下部分氮、磷、钾含量,研究其氮、磷、钾分配和累积规律。结果:川半夏不同生育时期各部分对氮、磷、钾的吸收量不同,其中对钾的吸收量最大,对磷的吸收量最少;在半夏大面积"倒苗"前后,各部分氮、磷和钾含量以及累积总量总体上高于非"倒苗"期。生长期间半夏地上和地下部分磷、钾吸收量间相关系数均达显著水平(P0.05),且地下部分磷和氮吸收量间相关系数也达到显著水平(P0.05)。半夏生长过程中,每生产100 kg干品,大约需要吸收氮5.02~5.64 kg,P2O52.44~2.56 kg,K2O 11.62~13.49 kg。结论:川半夏在大田栽培中应当施足底肥,并在6月中旬和8月下旬前后及时追施氮、磷和钾肥,并适当提高钾的比例。追肥方式可采用地下浇施和叶面喷施相结合的方式,川半夏地下部分对磷肥和氮肥的吸收有相互促进的效应。

关 键 词:川半夏  营养吸收      
收稿时间:5/6/2009 12:00:00 AM

Nutrient uptake characteristics of nitrogen, phosphorus and potassiumof Pinellia ternate from Sichuan during growth stage
SHEN Hao,WU Wei,ZHENG Youliang,LI Min and LIU Qian.Nutrient uptake characteristics of nitrogen, phosphorus and potassiumof Pinellia ternate from Sichuan during growth stage[J].China Journal of Chinese Materia Medica,2010,35(1):22-26.
Authors:SHEN Hao  WU Wei  ZHENG Youliang  LI Min and LIU Qian
Institution:Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and PekingUinon Medical College, Beijing 100193, China;Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and PekingUinon Medical College, Beijing 100193, China;Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and PekingUinon Medical College, Beijing 100193, China;Chengdu Enwei Investment Group Company, Chengdu 610041, China;Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and PekingUinon Medical College, Beijing 100193, China
Abstract:Objective: To study the absorption characteristics of nitrogen(N),phosphorus(P),and potassium(K) of Pinellia ternate from Sichuan under the cultivated condition.Method: The samples of P.ternate S-29 and S-33 from Sichuan were regularly collected randomly,the contents of nitrogen,phosphorus and potassium of each part(aerial and underground parts) were determined,and their distribution and accumulation characters of nitrogen,phosphorus,potassium were also studied.Result: The absorption rate of aerial and unde...
Keywords:Pinellia ternata from Sichuan  absorption  nitrogen  phosphorus  potassium
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