|Table of Contents|

Fertilizer-N Uptake and Distribution in Soybean Using15N Tracer Technique(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年02期
Page:
277-280
Research Field:
Publishing date:

Info

Title:
Fertilizer-N Uptake and Distribution in Soybean Using15N Tracer Technique
Author(s):
LI Can-dong;  LIU Xiu-zhi;  GUO Tai;  WANG Zhi-xin;  ZHENG Wei;  ZHANG Zhen-yu;  GUO Mei-ling;  LI Yu
Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi 154007, China
Keywords:
Soybean;  Leaf;  15N tracer;  N utilization rate
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2015.02.0277
Abstract:
In order to research the effects of nitrogen uptake and distribution in soybean, by using soybean cultivar Hefeng 48 as test material and taking15N tracer method for leaves nitrogen application in R5 to study the nitrogen uptake and distribution of different soybean organs.The results showed that there were no signification increments in dry weight and nitrogen accumulation if the nitrgen application rates were more than 4.5 kg?ha-1(N3).The seeds dry weight was 23.2 g and the total dry weight was 73.9 g and higher than the no nitrogen application by 7.91% and 14.93%. The seeds nitrogen accumulation was 137.2 g per plant and higher than the no nitrogen application by 13.11%. Different organs 15N accumulation were seeds＞leaf＞pod＞petiole＞root under the same nitrgen application rate and had significance level. The 15N accumulation increased with the increasing of different nitrogen application and had the hihgest seeds with 8.32 mg per plant in 4.5 kg?ha-1?(N3). The overall trend of 15N accumulation and distribution ratio were accordance and on significant correlation with different nitrogen application.

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Last Update: 2015-06-08