|Table of Contents|

Seasonal Trend of Main Plant-Parasitic Nematodes in Soybean Rhizosphere under Different Rotation Systems(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年06期
Page:
997-1002
Research Field:
Publishing date:

Info

Title:
Seasonal Trend of Main Plant-Parasitic Nematodes in Soybean Rhizosphere under Different Rotation Systems
Author(s):
PAN Feng-juan12XU Yan-li1LI Chun-jie1HAN Xin-hua12LIU Wei3
1Crop Physiology & Ecology Laboratory,Northeast Institute of Geography and Agroecology,CAS,Harbin 150081,Heilongjiang;
2Graduate University of Chinese Academy of Sciences,Beijing 100049;
3Department of Plant Protection,Northeast Agricultural University,Harbin 150300,Heilongjiang,China
Keywords:
SoybeanRhizosphereGrowth stageRotation systemSoil nematodes
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.06.0997
Abstract:
The population trends of soil nematodes and main plant-parasitic nematodes in different soybean growth period were researched,in order to evaluate soil health and rationality of soybean rotation systems,and to predict soybean root diseases and damage.Soil nematodes were extracted by baermann plate technique in soybean seedling,flowering and seed-filling stage.There were 4 plant systems of soybean(soybean continuous cropping 14 a,wheat/maize/soybean,wheat/soybean,maize/soybean)and a control(fallow).The results showed that density of soybean cyst nematode(SCN)was higher in maize/soybean and wheat/soybean than that in soybean rotation system(wheat/maize/soybean),which was followed by soybean continuous cropping,there was almost no SCN in fallow.From soybean seedling to seed-filling,density of SCN gradually improved in each treatments,density of total soil nematodes constantly improved in wheat/soybean and soybean rotation system,there was a significant difference in the population of soil nematodes between soybean seedling and flowering.In the three soybean growth stages,the density of soil nematodes was highest in soybean rotation system,and .Helicotylenchus-Rotylenchus-Pararotylenchus were dominant population in fallow.

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Last Update: 2014-10-06