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Humic substances in soil and crop sciences. Selected readings : Proceedings of a symposium cosponsored by the International Humic Substances Society.

dc.creatorSymposium December 2 : Chicago, Illinois : 40883.
dc.creatorBloom, P.R. 40884.
dc.creatorClapp, C.E. 40885.
dc.creatorMacCarthy, Patrick 40886.
dc.creatorMalcom, R.L. 40887.
dc.creatorInternational Humic Substances Society 40888.
dc.date1990.
dc.identifierURN:ISBN:0891181040
dc.descriptionReferencias.
dc.languageeng
dc.publisherMadison : USA : American Society of Agronomy; Soil Science Society of America,
dc.subjectAnálisis del suelo
dc.subjectHumus
dc.subjectNitrógeno
dc.subjectOrganismos del suelo
dc.titleHumic substances in soil and crop sciences. Selected readings : Proceedings of a symposium cosponsored by the International Humic Substances Society.
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