Biochar affects growth and shoot nitrogen in four crops for two soils by David Olszyk, Tamotsu Shiroyama, Jeffrey Novak, Keri Cantrell, Gilbert Sigua, Donald Watts, Mark G. Johnson

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Biochar Affects Essential Nutrients of Carrot Taproots and Lettuce Leaves by David M. Olszyk, Tamotsu Shiroyama, Jeffrey M. Novak, Keri B. Cantrell, Gilbert Sigua, Donald W. Watts, Mark G. Johnson

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Designing amendments to improve plant performance for mine tailings revegetation by Mark G. Johnson, David M. Olszyk, Tamotsu Shiroyama, Michael A. Bollman, Maliha S. Nash, Viola A. Manning, Kristin M. Trippe, Donald W. Watts, Jeffrey M. Novak

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