|Table of Contents|

Nitrogen Effects Vertical Distribution of Yield Components of High-yield Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2011年03期
Page:
424-427
Research Field:
Publishing date:

Info

Title:
Nitrogen Effects Vertical Distribution of Yield Components of High-yield Soybean
Author(s):
ZHANG Jian-xin;  SHEN Rong;  LI Hong-qi;  SHAO Chang-he;  SU Guang-lu
College of Agronomy， Xinjiang Agricultural University, Urumqi 830000, Xinjiang, China
Keywords:
Soybean;  Nitrogen rate;  Pod;  Seed;  Vertical distribution
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.03.0424
Abstract:
Research on the effects of N applications on vertical distribution of soybean [Glycine max(L.) Merr.] yield components is limited. Field trials were conducted to determine the effect of N application rate on pods, seeds and cavities number on main stem of soybean, with semi-determinate soybean‘Jiyu60’as material.Nitrogen was applied to the soil with 0, 60, 120 and 180 k·ha－1 at flowering, respectively. Application of N increased pods, seeds and cavities number at any rate and node position. Appropriate N(120 k·ha－1) significantly increased pods and seeds in 15-19,10-14, 5-9 nodes of main stem, and increased seed yield by 22%compared with control. The cavities number on different part of stem were lower (5-9 node)>middle(10-14)>upper section(15-19 node), application of N had less influence on the distribution of empty pod cavities and had no influence on total seed-setting rate. Nitrogen increased stem diameter of basal node and internode length between 5th and 19th node. Appropriate N enhanced the pod-setting ability of upper section of soybean population, hence, increased total number of cavities and seeds number.

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Last Update: 2014-09-12