|Table of Contents|

EFFECTS OF P DEFICINCYON NODULATION AND FUNCTION IN SOYBEANUNDER TWO DIFFERENT N SOURCES(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2006年03期
Page:
250-253,258
Research Field:
Publishing date:

Info

Title:
EFFECTS OF P DEFICINCYON NODULATION AND FUNCTION IN SOYBEANUNDER TWO DIFFERENT N SOURCES
Author(s):
Miao Shujie1; 2　Qiao Yunfa1　Han Xiaozeng1
(1. Northeast Institute of Geography and Agricultural Ecology , CAS , Harbin 150040;2.Graduate College , CAS , Beijing, 100049)
Keywords:
Phosphorus; Nitrogen ; Nodulation; Soybean
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2006.3.0250
Abstract:
　Soybean, grown in solution culture for 7 weeks, had been used to study the effect of P on nodu-lation under two nitrogen sources. At all harvest time, nodule number of nitrogen fixation increased with Psupply in solution further increased, especially , at 6th week , nodule number reached a maximum. In con-trast , that of nitrate treatment was less than that of nitrogen fixation treatment , but nodule number reach a maximum at 16μmol /L P. These suggested that nitrate inhibited soybean nodula-tion so that nitrogen fixed decreased. Therefore , nitrogen concentration of plant in nitrate treatment de-creased with P further increased, but that of nitrogen fixation is opposite. The ration of N and P in roots ofnitrogen fixation treatment had a significant relationship , r =- 0. 5816*, but that of nitrate treatment wasnot correlated.

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Last Update: 2016-12-15