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Figure 5


Fig. 5. Graphs showing use of (A) herbicides in agricultural settings and (B) nitrogen fertilizer in the conterminous USA. Interpolations before 1982 in (A) are based on use data for all pesticides; interpolations from 1982–2001 use data for all herbicides.





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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome