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Effect of Nitrogen Amount on Rhizosphere Soil Microorganisms and Yield of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年02期
Page:
284-286
Research Field:
Publishing date:

Info

Title:
Effect of Nitrogen Amount on Rhizosphere Soil Microorganisms and Yield of Soybean
Author(s):
SHEN Xiao-hui
Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences,Jiamusi 154007,China
Keywords:
Soybean; Nitrogen; Soil microganisms; Yield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.02.0284
Abstract:
In field trails,nitrogen amount of 0,30,60 and 90 kg.ha-1were applied,the number of bacteria,actinomycetes and fungus in soybean rhizosphere soil at VE,R1,R3,R5 and R7,as well as soybean yield and yield components were determined.The number of bacteria,actinomycetes and fungus increased with the increasing of N amount.As the growth progresses,the number of bacteria and fungus showed increase and then decrease trend,and maximized at R5.Maximum soybean yield of 2 734.2kg.ha-1was obtained under 60 kg.ha-1N,which was increased by 13.0% than control.Results suggest applying appropriate amount of N would facilitate to increase soil microorganisms and soybean yield.

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Last Update: 2014-08-05