Response of Nematodes in a Hapli-Udic Argosol to Urea Amended with Urease and Nitrification Inhibitors

作     者：HUA Jian-Feng JIANG Yong LIANG Wen-Ju HUA Jian-Feng, JIANG Yong and LIANG Wen-Ju Soil Ecology Laboratory, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China). Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)

作者机构：Soil Ecology Laboratory Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 （China） Graduate School of the Chinese Academy of Sciences Beijing 100039 （China） 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2006年第16卷第4期

页      面：428-434页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：Project supported by the National Key Basic Research Support Foundation of China (No. 2005CB121105) and the National High Technology Research and Development Program of China (No. 2005AA001480) 

主　　题：Hapli-Udic Argosol nitrification inhibitor slow-release urea soil nematodes urease inhibitor 

摘      要：Effects of urea amended with urease and nitrification inhibitors on soil nematode communities were studied in a Hapli- Udic Argosol （Cambisol, FAO） in Liaoning Province of Northeast China. A completely random design with four treatments, i.e., conventional urea （CU）, slow-release urea amended with a liquid urease inhibitor （SRU1）, SRU1 ＋nitrification inhibitor dicyandiamide （SRU2）, and SRU1 ＋ nitrification inhibitor 3,5-dimethylpyrazole （SRU3） and four replicates were applied. Thirty-nine genera of nematodes were identified, with Cephalobus and Aphelenchus being dominant; and in all treatments, the dominant trophic group was bacterivores. In addition, during the growth period of spring wheat （Triticum aestivum L.）, soil urease activity was lower in SRUs than in CU. The numbers of total nematodes and bacterivores at wheat heading and ripening stages, and omnivores-predators at ripening stage were higher in SUR3 than in CU, SRU1 and SRU2 （P 〈 0.05）.