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NEMATODE COMMUNITY STRUCTURE UNDER COMPOST AND CHEMICAL FERTILIZER MANAGEMENT PRACTICE, IN THE NORTH CHINA PLAIN

Published online by Cambridge University Press:  01 October 2008

CHENG HU  and
ZHI-PING CAO
CHENG HU*
Affiliation:
Department of Ecology and Ecological Engineering, College of Resources and Environmental Science, China Agricultural University, Beijing 100094, P. R. China Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan 430064, P. R. China
ZHI-PING CAO
Affiliation:
Department of Ecology and Ecological Engineering, College of Resources and Environmental Science, China Agricultural University, Beijing 100094, P. R. China
*
§Corresponding author: zhipingc@cau.edu.cn
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Summary

A long-term field experiment was conducted at the Qu-Zhou experimental station, China Agricultural University to study how the nematode community structure was influenced by compost and chemical fertilizer, using no amendment as the control. Soil samples were collected from 0–10 cm and 10–20 cm depths. The different treatments led to a significant difference in the total number of nematodes, bacterivores, plant parasites, omnivores-predators and nematode richness. The total number of nematodes, bacterivores, omnivores-predators and nematode richness were found to decrease in chemical fertilizer-treated plots. Although plant parasites were more abundant under compost treatment than under chemical fertilization, the relative abundance of plant parasites in the compost-treated plots was smaller. The application of chemical fertilizer decreased the number of genera of bacterivores and omnivores-predators. The numbers of total nematodes, bacterivores, plant parasites and omnivores-predators were significantly positively correlated with the contents of total organic carbon, total N, alkali-hydrolysable N, available P and available K. The compost-treated plots tended to have a greater diversity of nematodes than chemical fertilizer treated plots, so there was a healthy soil ecosystem under compost treatment.

Type
Research Article
Information
Experimental Agriculture , Volume 44 , Issue 4 , October 2008 , pp. 485 - 496
Copyright
Copyright © Cambridge University Press 2008

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