Pedosphere 15(4): 526--531, 2005
ISSN 1002-0160/CN 32-1315/P
©2005 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Mineral coated fertilizer effect on nitrogen-use efficiency and yield of wheat
LI Jian-Yun1, HUA Quan-Xian2,3, TAN Jin-Fang4, ZHOU Jian-Min2 and HOU Yan-Lin3
1 Department of Soil Environmental Science, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085 (China). E-mail: Lijianyun111@sohu.com
2 State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China)
3 Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)
4 College of Agriculture, Henan Agricultural University, Zhengzhou 450002 (China)
ABSTRACT
      A field experiment with winter wheat (Triticum aestivum L.) was conducted on a silt loam calcaric endorusti-ustic Cambosols derived from the Yellow River alluvial deposits in Henan, China, from 2001 to 2002 to evaluate N recovery and agronomic performance of different mineral coated fertilizers (MiCFs) compared to normal urea used in wheat cropping systems under field conditions. Five treatments, including CK (check, no N fertilizer), urea and three different MiCFs at an equivalent N application rate were established in a randomized complete block design. N release from MiCFs in soil was more synchronous with the N requirement of wheat throughout the growth stages than that from urea, with grain yield of the MiCF treatments significantly higher (P < 0.05) than that of the treatment urea. Correspondingly, the N recovery rate was greater for all MiCFs compared to urea, increasing from 32.8% up to 50.1%. Due to its high recovery and low cost. use of the mineral coated N fertilizers was recommended instead of the polymer coated N fertilizers.
Key Words:  mineral coated fertilizer, N recovery, urea, winter wheat
Citation: Li, J. Y., Hua, Q. X., Tan, J. F., Zhou, J. M. and Hou, Y. L. 2005. Mineral coated fertilizer effect on nitrogen-use efficiency and yield of wheat. Pedosphere. 15(4): 526-531.
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