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Acta Ecologica Sinica. 2012, (23) Core

Effects of exponential fertilization on biomass allocation and root morphology of Catalpa bungei clonesChinese Full Text

WANG Lipeng1,YAN Ziyi1,LI Jiyue1,,WANG Junhui2,HE Qian1,SU Yan1,CHEN Bo1,MA Jianwei3,DONG Julan3 1 College of Forestry,South China Agricultural University,Guangzhou 510642,China 2 Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration,Beijing 100091,China 3 Xiaolongshan Forestry Science and Technology Research Institute,Tianshui 741022,China

Abstract: In order to study the differences of Catalpa bungei clones′ biomass allocation and root morphology,an exponential fertilization trial was conducted with three nitrogen dose levels of 6 10,14 g urea per plant and CK.The experimental materials were two-year Catalpa bungei clones 1-4,7080 and 015-1 tissue culture-seedlings.We conducted the experiment in Xiaolongshan forestry science and technology research institute,Tianshui city,Gansu province from March to August 2011.The results showed that:（1） ... More
Keywords：

Catalpa bungei; exponential fertilization; biomass allocation; root morphology;

  • Series：

    (A) Mathematics/ Physics/ Mechanics/ Astronomy; (D) Agriculture

  • Subject：

    Forestry

  • Classification Code：

    S792.99

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