Pedosphere 2(3): 283--288, 1992
ISSN 1002-0160/CN 32-1315/P
©1992 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Fractionation of Zinc in Paddy Soils of China
HAN FENG-XIANG, ZHU QI-QING
Institute of Soil Science, A cademia, Sinica, P. O. Box 821, Nanjing 210008
ABSTRACT
      The rice fields in China amount to 25.4 million hectares of which low yield paddy soils areabout 26%(Xu,1981;Xiao,1981).One of the most important causes of low yield is the defi-ciency in nutrients including zinc.Zinc deficiency usually occurs in calcareous paddy soils withpH>6.5(Zhu and Liu,1981).And the availability of zinc in calcareous paddy soils is lowerthan that in neutral and acid paddy soils.
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Citation: Han, F. X. and Zhu, Q. Q. 1992. Fractionation of Zinc in Paddy Soils of China. Pedosphere. 2(3): 283-288.
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