MARC全文
0200054174 20040607150933.0 s2004 ne a frb |000|||eng | 90-5744-098-9(pbk.) NGL eng dut a394 Naafs, Dennis F. W. (Ferdinand Werner) 什么是腐殖质?-- 酸性土壤有机物分子研究法. chi What are humic substances? : a molecular approach to the study of organic matter in acid soils / Dennis F.W. Naafs. Utrecht : Faculty of Earth Sciences, Utrecht University, 2004. xv, 162 p. : ill. ; 24 cm. Geologica Ultraiectina / Mededelingen van de Faculteit Geowetenschappen, Universiteit Utrecht ; no.239 Includes bibliographical references (p. 133-148) Summary also in Dutch. Humic acid. ; Soil chemistry. NGL EB00065108 P 206.3 G29ul v239 acxh b1 ecxh0400