Direct expression of an index for the degree of humification of humic acids using organic carbon concentrationIKEYA, Kosuke; WATANABE, Akira.Soil Science and Plant Nutrition (Tokyo). 2003, Vol 49, Num 1, pp 47-53, issn 0038-0768, 7 p.Article

Changes in soil properties and humic substances after long-term amendments with manure and crop residues in dryland farming systemsDORADO, José; ZANCADA, Maria-Cristina; ALMENDROS, Gonzalo et al.Journal of plant nutrition and soil science (1999). 2003, Vol 166, Num 1, pp 31-38, issn 1436-8730, 8 p.Article

Incorporation of nitrogen from urea fertilizer into soil organic matter in rice paddy and cassava upland fields in IndonesiaABE, Tomonori; SUWANDHI, Sambudhi S; ARDJASA, Wayan Sabe et al.Soil Science and Plant Nutrition (Tokyo). 2002, Vol 48, Num 6, pp 825-832, issn 0038-0768, 8 p.Article

Optimization of a methylation procedure to obtain chloroform-soluble humic acidsFUJITAKE, Nobuhide; STRYNAR, Mark J; MISHIMA, Taketoshi et al.Soil Science and Plant Nutrition (Tokyo). 2003, Vol 49, Num 3, pp 453-457, issn 0038-0768, 5 p.Article

Détermination de la quantité et de la forme du soufre greffé dans des humates modifiésSHARANOVA, I. E; GIRINA, L. V; RYBACHENKO, V. I et al.Himiâ tverdogo topliva. 1987, Num 3, pp 38-43, issn 0023-1177Article

Humus in soils of geochemically interdependent landscapes of the semiarid subtropicsCHERNOVA, O. V; SAMOYLOVA, YE. M.Soviet soil science. 1984, Vol 16, Num 5, pp 65-72, issn 0038-5832Article

BIODEGRADATION AND STABILIZATION AFTER 2 YEARS OF SPECIFIC CROP, LIGNIN, AND POLYSACCHARIDE CARBONS IN SOILSMARTIN JP; HAIDER K; KASSIM G et al.1980; SOIL SCI. SOC. AM. J.; USA; DA. 1980; VOL. 44; NO 6; PP. 1250-1255; BIBL. 32 REF.Article

Carbohydrate origin of aquatic humus from peatPAINTER, T. J.Carbohydrate research. 1983, Vol 124, Num 1, pp C22-C26, issn 0008-6215Article

Fertilization with NPK and humate NPK. plant yield and nutrient dynamicsBENEDETTI, A; FIGLIOLIA, A; IZZA, C et al.Suelo y planta. 1992, Vol 2, Num 2, pp 203-214, issn 1130-796XArticle

Activity and stability of urease-hydroxyapatite and urease-hydroxyapatite-humic acid complexesBORGHETTI, Claudia; GIOACCHINI, Paola; MARZADORI, Claudio et al.Biology and fertility of soils. 2003, Vol 38, Num 2, pp 96-101, issn 0178-2762, 6 p.Article

Fluorescence excitation spectroscopic studies on humic acidsNAYAK, D. C; BARMAN, A. K; CHANDRIKA VARADACHARI et al.Journal of the Indian Society of Soil Science. 1985, Vol 33, Num 4, pp 785-787, issn 0019-638XArticle

Persulfate oxidation of humic acids extracted from three different soilsMARTIN, F; GONZALEZ-VILA, F. J.Soil biology & biochemistry. 1984, Vol 16, Num 3, pp 207-210, issn 0038-0717Article

UNTERSUCHUNGEN ZUM WACHSTUM SLOVAKISCHER ROTBUCHENPROVENIENZEN (FAGUS SYLVATICA L.) = RECHERCHES SUR LA CROISSANCE DE PROVENANCES SLOVAQUES DE FAGUS SYLVATICAPAULE L.1982; SILVAE GENETICA; ISSN 0037-5349; DEU; DA. 1982; VOL. 31; NO 4; PP. 131-136; ABS. ENG; BIBL. 1 P.Article

Alkaline degradation of peat humic acids. I, Identification of lipophilic productsHÄNNINEN, K; NIEMELÄ, K.Acta chemica scandinavica (Copenhagen. 1989). 1991, Vol 45, Num 2, pp 193-199, issn 0904-213XArticle

Effect of humic acids on numbers and activities of micro-organisms within physiological groupsVISSER, S. A.Organic geochemistry. 1985, Vol 8, Num 1, pp 81-85, issn 0146-6380Article

Différences de structure entre les acides hymatomélaniques et humiques du chermozem modalGLEBOVA, G. I; LARIONOVA, A. A; ORLOV, D. S et al.Počvovedenie (Moskva). 1985, Num 7, pp 31-35, issn 0032-180XArticle

Calculations of ion activities in soil solutions from humic horizons = Calcul des activités ioniques dans les solutions de sol obtenues à partir d'horizons humiquesPONIZOVSKY, A. A; MIRONENKO, E. V; PACHEPSKY, YA. A et al.Geoderma (Amsterdam). 1985, Vol 36, Num 1, pp 37-44, issn 0016-7061Article

Molecular size distribution of humic acids as affected by the ionic strength and the degree of humidificationTSUTSUKI, K; KAWATSUKA, S.Soil Science and Plant Nutrition (Tokyo). 1984, Vol 30, Num 2, pp 151-162, issn 0038-0768Article

Analyse des acides humiques du sol par spectrométrie de masse pyrolytiqueBRODSKIJ, E. S; NIKITIN, L. N; LUKASHENKO, I. M et al.Počvovedenie (Moskva). 1983, Num 10, pp 56-62, issn 0032-180XArticle

Comparative study of melanoidins and humic acidsMAL', S. S; SLIVKA, Z. M; POVARKOVA, S. S et al.Soviet soil science. 1982, Vol 14, Num 4, pp 62-70, issn 0038-5832Article

AN INVESTIGATION OF SOIL HUMIC ACIDS WITH THE HELP OF PYROLITIC MASS SPECTROMETRYBRODSKIJ ES; NIKITIN LN; SHEVTSOVA LK et al.1982; SOV. AGRIC. SCI; USA; DA. 1982; NO 5; PP. 7-9; BIBL. 7 REF.; DE RUSSE EN ANGLAIS;[DOKL. VSES. AKAD. S. KH. NAUK IM. LENINA; SUN; DA. 1982; NO 5; PP. 6-8]Article

DECOMPOSITION OF HUMUS SUBSTANCES BY MICROORGANISMS. V: THE METHOD OF ROCHUS AND TJURIN FOR ISOLATING HUMUS ACIDSDUBOVSKA A; MACOR M.1980; ACTA FAC. RERUM NAT. UNIV. COMENIANAE, MICROBIOL.; CSK; DA. 1980; NO 8-9; PP. 63-80; ABS. SLV/RUS; BIBL. 2 P.Article

DECOMPOSITION OF HUMUS SUBSTANCES BY MICROORGANISMS. VI: UTILIZATION OF CARBON FROM THE HUMUS ACIDS OF A PEATY SOIL BY SOME MICROMYCETESDUBOVSKA A.1980; ACTA FAC. RERUM NAT. UNIV. COMENIANAE, MICROBIOL.; CSK; DA. 1980; NO 8-9; PP. 81-111; ABS. SLV/RUS; BIBL. 2 P.Article

Interaction of humic substances with liposomesYOSHIDA, S; SHINOZUKA, N; WATANABE, T et al.Yukagaku. 1991, Vol 40, Num 6, pp 478-483, issn 0513-398XArticle

Les complexes ligand mélangé de métaux avec acides humiques et hydrazineZHOROBEKOVA, SH. ZH; MAL'TSEVA, G. M.Himiâ tverdogo topliva. 1989, Num 2, pp 55-57, issn 0023-1177, 3 p.Article