This work could not be checked — none of the deposited references carry a DOI. No claim is made either way
about its reference list.
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no DOI — not checkedFageria, N.K. and V.C. Baligar. 2005. Enhancing nitrogen use efficiency in crop plants. Adv. Agron. 88:97-185.
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no DOI — not checkedKeeney, D.R. and D.W. Nelson. 1982. Nitrogen-inorganic forms. p. 643-698. In A.L. Page et al. (ed.) Methods of Soil Analysis. Part 2.2
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no DOI — not checkedLiu, J.X., S.J. Peng, B. Faivre-vuillin, Z.H. Xu, D.Q. Zhang, and G.Y. Zhou. 2008. Erigeron annuus (L.) Pers., as a green manure for ameliorating soil exposed to acid rain in Southern China. J. Soil Sediment. 8:452-460.
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no DOI — not checkedPansu, M. and J. Gautheyrou. 2007. Handbook of Soil Analysis: Mineralogical, Organic and Inorganic Methods. Springer Science & Business Media.
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no DOI — not checkedSchimel, J.P. and J. Bennett. 2004. Nitrogen mineralization: challenges of a changing paradigm. Ecol. 85(3): 591-602.
no DOI — not checkedSchulten, H.R. and M. Schnitzer. 1998. The chemistry of soil organic nitrogen: a review. Biol. Fertil. Soils 26:1-15.
no DOI — not checkedScolow, R.W. 1999. Nitrogen management and the future of food: Lessons from management of energy and carbon. Proc. Natl.Acad.Sci. USA. 96:6001-6008.
no DOI — not checkedSparks, D.L. 1996. Methods of Soil Analysis, part 3 (SSSA Book Series No.5). Madison, Wisc.: SSSA and ASA.
no DOI — not checkedStewart, B.A., L.K. Poter, and F.E. Clark. 1963. The reliability of a micro-Dumas procedure for determining total nitrogen in soil. Soil Sci. Soc. Am. Proc. 27: 377-380.
no DOI — not checkedYoung, J.L. 1962. Inorganic soil nitrogen and carbon:nitrogen ratios of some Pacific Northwest soils. Soil Sci. 93: 397-404.
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