SSSAJ Journal of Natural Resources and Life Sciences Education
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Fig. 5. Change in Ap horizon thickness of soybean fields in 5 yr, from 1990 to 2000, under no-tillage system. The Ap horizon thickness of 1995 was measured by Miura et al. (1998).





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HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome