Impact of switchgrass biochars with supplemental nitrogen on carbon-nitrogen mineralization in highly weathered Coastal Plain Ultisols
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- 作者：G.C. Sigua ; gilbert.sigua@ars.usda.gov" class="auth_mail" title="E-mail the corresponding author ; J.M. Novak ; D.W. Watts ; A.A. Szö ; gi ; P.D. Shumaker
- 关键词：Switchgrass biochars ; Switchgrass residues ; Carbon mineralization ; Highly weathered soils ; Coastal Plain Ultisols ; Total inorganic nitrogen
- 刊名：Chemosphere
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：145
- 期：Complete
- 页码：135-141
- 全文大小：454 K
文摘
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Carbon dioxide evolution was increased by the additions of switchgrass biochars and residues.
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Application of switchgrass biochar may cause N immobilization.
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Biochar application may need supplemental N to avoid crop growth retardation.