Search ResultsElectronic Resources 
by
Sparks, Donald L., 1953-
ScienceDirect http://www.sciencedirect.com/science/book/9780120007707
Format:
Excerpt:
sciences - environmental quality and crop improvement. Chapter 1 is a comprehensive treatment of the role
by
Sparks, Donald L.
Format:
Excerpt:
quantification, mechanisms, role of management, and mitigation options. Agronomic and environmental implications

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