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Soybean (Glycine max L.) Growth and Nitrogen Fixation as Affected by Different N Supplying Modes(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年05期
Page:
859-862
Research Field:
Publishing date:

Info

Title:
Soybean (Glycine max L.) Growth and Nitrogen Fixation as Affected by Different N Supplying Modes
Author(s):
WANG Shu-qi12HAN Xiao-zeng1QIAO Yun-fa1YAN Jun1LI Xiao-hui1
1.Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang;
2.Institute of Applied Ecology,Chinese Academy of Sciences,Shengyang 110016,Liaoning,China
Keywords:
Nitrogen fixationContinuous N supplyingNon-continuous N applicationSoybean
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.05.0859
Abstract:
Nitrogen plays an important role in nitrogen fixation of soybean.A pot culture experiment was conducted to study the effect of different N supplying modes (such as continuous N supplying (CN,applied at sowing,seedling,flowering and podding stage,respectively) and non-continuous N supplying (NCN,applied at sowing stage as basal fertilizer)) on soybean growth and nitrogen fixation.The results showed that compared with continuous N supplying,non-continuous N supplying acted as higher promotion in soybean growth at seedling stage,however,after flowering stage,continuous N supplying showed higher promotion in soybean growth.Nodule number showed as following order:NCN>CN>CK,suggested that continuous N application restrained nodule formation and growth.Whether N continuous application or not continuous supplying,nitrogenase activity and leghemoglobin concentration all decreased compared with no N treatment,and the inhibition of N continuous supplying was higher than that of non-continuous N application,showed as continuous N supplying.

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Last Update: 2014-09-18