EXTRACELLULAR ENZYMES IN SOIL.SKUJINS J.1976; C.R.C. CRIT. REV. MICROBIOL.; U.S.A.; DA. 1976; VOL. 4; NO 4; PP. 383-421; BIBL. 9 P. 1/2Article

The nitrogen cycle in North American cold-winter semi-desert ecosystemsWEST N. E; SKUJINS J.Oecologia plantarum. 1977, Vol 12, Num 1, pp 45-53Article

THE NITROGEN CYCLE IN NORTH AMERICAN COLD-WINTER SEMI-DESERT ECOSYSTEMS.WEST NE; SKUJINS J.1977; OECOL. PLANT.; FR.; DA. 1977; VOL. 12; NO 1; PP. 45-53; ABS. FR.; BIBL. 2 P.Article

ATP CONCENTRATION AND SOIL RESPIRATION AT REDUCED WATER POTENTIALS IN ARID SOILSKNIGHT WG; SKUJINS J.1981; SOIL SCI. SOC. AM. J.; USA; DA. 1981; VOL. 45; NO 3; PP. 657-660; BIBL. 15 REF.Article

HETEROTROPHIC N₂-FIXATION IN ARID SOIL CRUSTSKLUBEK B; SKUJINS J.1980; SOIL BIOL. BIOCHEM.; GBR; DA. 1980; VOL. 12; NO 3; PP. 229-236; BIBL. 26 REF.Article

Microbial ecology of desert soilsSKUJINS, J.Advances in microbial ecology. 1984, Vol 7, pp 49-91, issn 0147-4863Article

MICROBIAL ACTIVITY IN ACID SOILSRYCHERT RC; SKUJINS J.1973; UTAH SCI.; U.S.A.; DA. 1973; VOL. 34; NO 3; PP. 96-98Article

DENITRIFICATION IN LOW PH SPODOSOLS AND PEATS DETERMINED WITH THE ACETYLENE INHIBITION METHODMUELLER MM; SUNDMAN V; SKUJINS J et al.1980; APPL. ENVIRON. MICROBIOL.; ISSN 0099-2240; USA; DA. 1980; VOL. 40; NO 2; PP. 235-239; BIBL. 27 REF.Article

ATP CONCENTRATION AND SOIL RESPIRATION AT REDUCED WATER POTENTIALS IN ARID SOILS = LA CONCENTRATION DE L'ATP ET LA RESPIRATION DES SOLS A POTENTIELS HYDROLOGIQUES REDUITS DANS LES SOLS ARIDESKNIGHT WG; SKUJINS J; STEWART BA et al.1981; SOIL SCI. SOC. AM. J.; ISSN 0361-5995; USA; DA. 1981; VOL. 45; NO 3; PP. 657-660; BIBL. 15 REF.; ILL.Conference Paper

Soil nitrogenase assay by ¹⁴C-acetylene reduction: comparison with the carbon monoxide inhibition methodTANN, C. C; SKUJINS, J.Soil biology & biochemistry. 1985, Vol 17, Num 1, pp 109-112, issn 0038-0717Article

Corections for effusion from gas-permeable enclosures for the determination of low N₂(C₂H₂) fixation rates in situBORJESSON, I; SKUJINS, J.Soil biology & biochemistry. 1988, Vol 20, Num 1, pp 11-17, issn 0038-0717Article

ROOT-ASSOCIATED N₂ FIXATION (ACETYLENE REDUCTION) BY ENTEROBACTERIACEAE AND AZOSPIRILLUM STRAINS IN COLD-CLIMATE SPODOSOLSHAAHTELA K; WARTIOVAARA T; SUNDMAN V et al.1981; APPL. ENVIRON. MICROBIOL.; ISSN 0099-2240; USA; DA. 1981; VOL. 41; NO 1; PP. 203-206; BIBL. 19 REF.Article

Development of a sensitive biological method for the determination of a low-level toxic contamination in soilsSKUJINS, J; NOHRSTEDT, H. O; ODEN, S et al.Swedish Journal of Agricultural Research. 1986, Vol 16, Num 3, pp 113-118, issn 0049-2701Article

Acetylene reduction (N₂ fixation) and endogenous ethylene release in sub-boreal soils and peats of FinlandWEBER, A; NIEMI, M; SUNDMAN, V et al.Oikos. 1983, Vol 41, Num 2, pp 219-226, issn 0030-1299Article

Dinitrogen fixation in a montane forest sere determined by ¹⁵N₂ assimilation and in situ acetylene-reduction methodsSKUJINS, J; TANN, C. C; BORJESSON, I et al.Soil biology & biochemistry. 1987, Vol 19, Num 4, pp 465-471, issn 0038-0717Article

Microbial activities in a histosol: effects of wood ash and NPK fertilizersWEBER, A; KARSISTO, M; LEPPANEN, R et al.Soil biology & biochemistry. 1985, Vol 17, Num 3, pp 291-296, issn 0038-0717Article