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Fig. 5. Soil surface (0–0.2 m) NO-3–N concentrations under 120 kg N ha-1 (N120) and 200 kg N ha-1 (N200) rates in (a) 1996, (b) 1997, and (c) 1998 growing seasons. Vertical bars represent standard error of the mean (n = 3).





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