|Table of Contents|

Effects of N and Density Interaction on K Absorption of Soybean Plants(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年06期
Page:
865-869
Research Field:
Publishing date:

Info

Title:
Effects of N and Density Interaction on K Absorption of Soybean Plants
Author(s):
ZHAO JingSUN LeiLUO Sheng-guoZHANG Ming-congSUN Wen-xiangWU QiongZHAO Guang-xinLIU Yuan-ying
College of Resources and Environmental Science,Northeast Agricultural University,Harbin 150030,China
Keywords:
SoybeanN and density interactionK accumulationYield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.06.0865
Abstract:
In order to study the effects of N and density interaction on K accumulation in different soybean organs and yield,a field experiment was conducted with soybean cultivar Dongnong 52,using a split-plot design with two N application patterns(a single application of N 60 kg.ha-1?as basal fertilizer;starter-N 18 kg.ha-1as basal fertilizer followed by N 42 kg.ha-1as topdressing at R4 stage)and three densities(200 thousand plants.ha-1,250 thousand plants.ha-1and 300 thousand plants.ha-1).The results showed that after R5 stage,K accumulation in soybean organs of starter-N plus topdressing N was higher than using N as basal fertilizer under the same density.With the density increasing,K accumulation in soybean organs increased under the same N pattern.At R6 stage,except for K accumulation in soybean petioles,D2N2 and D3N2 reached significant difference with D1N1 in other soybean organs.At R8 stage,K accumulation in seeds of D2N2 and D3N2 were higher than D1N1 by 24.9% and 23.5%(P<0.05).D2N2 had the highest yield,3.96 t.ha-1,increased by 10.6%-36.6% compared with other treatments(P<0.05).

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Last Update: 2014-12-29