J. Ladd

发表

Modelling C and N turnover through the microbial biomass in soil

M. Frissel, J. V. Veen, J. Ladd, 1984 .

Modelling C and N turnover through the microbial biomass in soil

M. Frissel, J. V. Veen, J. Ladd, 1984, Plant and Soil.

Sites of microbial assimilation, and turnover of soluble and particulate 14C-labelled substrates decomposing in a clay soil

J. Chotte, M. Amato, J. Ladd, 1998 .

Soil structure: carbon and nitrogen metabolism

J. Skjemstad, R. C. Foster, J. Ladd, 1993 .

CARBON AND NITROGEN MINERALIZATION FROM TWO SOILS OF CONTRASTING TEXTURE AND MICROAGGREGATE STABILITY : INFLUENCE OF SEQUENTIAL FUMIGATION, DRYING AND STORAGE

M. Amato, J. Ladd, M. V. Gestel, 1991 .

Turnover of carbon and nitrogen through the microbial biomass in a sandy loam and a clay soil incubated with [14C(U)]glucose and [15N](NH4)2So4 under different moisture regimes

J. V. Veen, M. Amato, J. Ladd, 1985 .

Differential effects of rotation, plant residue and nitrogen fertilizer on microbial biomass and organic matter in an Australian alfisol

M. Amato, J. Schultz, J. Ladd, 1994 .

Turnover of carbon, nitrogen and phosphorus through the microbial biomass in soils incubated with 14-C-, 15N- and 32P-labelled bacterial cells

J. K. Martin, J. V. Veen, M. Amato, 1987 .

The fate of nitrogen from legume and fertilizer sources in soils successively cropped with wheat under field conditions

M. Amato, J. Ladd, 1986 .

Decomposition of 14C-labelled glucose and legume material in soils: Properties influencing the accumulation of organic residue C and microbial biomass C

M. Amato, J. Ladd, 1992 .

Short-term assays of soil proteolytic enzyme activities using proteins and dipeptide derivatives as substrates

J. Ladd, J. Butler, 1972 .

Decomposition of plant material in Australian soils. III. Residual organic and microbial biomass C and N from isotope-labelled legume material and soil organic matter, decomposing under field conditions

J. Oades, M. Amato, J. Ladd, 1985 .

Effect of substrate location in soil and soil pore-water regime on carbon turnover

K. Killham, M. Amato, J. Ladd, 1993 .

Decomposition of 14C-labelled plant material in a salt-affected soil

P. N. Nelson, J. Oades, J. Ladd, 1996 .

Distribution and recovery of nitrogen from legume residues decomposing in soils sown to wheat in the field

J. Oades, M. Amato, J. Ladd, 1981 .

Carbon turnover and nitrogen transformations in an alfisol and vertisol amended with [U-14C] glucose and [15N] ammonium sulfate

M. Amato, L. Jocteur-Monrozier, J. Ladd, 1992 .

Components and microbial biomass content of size fractions in soils of contrasting aggregation

R. Fitzpatrick, L. J. Monrozier, R. C. Foster, 1991 .

Distribution of organic 14C and 15N in particle-size fractions of soils incubated with 14C, 15N-labelled glucose/NH4, and legume and wheat straw residues

L. J. Monrozier, M. Amato, J. Ladd, 1996 .

Microbial biomass responses to seasonal change and imposed drying regimes at increasing depths of undisturbed topsoil profiles

M. Amato, J. Ladd, M. V. Gestel, 1992 .

Assay for microbial biomass based on ninhydrin-reactive nitrogen in extracts of fumigated soils

M. Amato, J. Ladd, 1988 .

Properties of proteolytic enzymes extracted from soil

J. Ladd, 1972 .

Influences of Aporrectodea trapezoides and A. rosea (Lumbricidae) on the uptake of nitrogen and yield of oats (Avena fatua) and lupins (Lupinus angustifolius): The 7th international symposium on earthworm ecology · Cardiff · Wales · 2002

M. Amato, G. Baker, J. Ladd, 2003 .

Relationship between microbial biomass carbon in soils and absorbance (260 nm) of extracts of fumigated soils

M. Amato, J. Ladd, 1989 .

Application of the ninhydrin-reactive N assay for microbial biomass in acid soils

M. Amato, J. Ladd, 1994 .

Soil microbial biomass: its assay and role in turnover of organic matter C and N

H. V. Veen, M. Amato, J. Ladd, 2004 .

Measurement of biomass C, N and 14C of a soil at different water contents using a fumigation-extraction assay

J. Chotte, M. Amato, J. Ladd, 1998 .

The removal of soluble organic carbon from synthetic winery wastewater by repeated application to soil

J. Chapman, J. Ladd, R. Correll, 1995 .

Studies of nitrogen immobilization and mineralization in calcareous soils—V. Formation and distribution of isotope-labelled biomass during decomposition of 14C- and 15N-labelled plant material

M. Amato, J. Ladd, 1980 .

Studies of nitrogen immobilization and mineralization in calcareous soils - IV. Changes in the organic nitrogen of light and heavy subfractions of silt- and fine clay-size particles during nitrogen turnover.

M. Amato, J. Ladd, 1980 .

Microbial assimilation of 14C of ground and unground plant materials decomposing in a loamy sand and a clay soil

P. Sørensen, M. Amato, J. Ladd, 1996 .

Studies on soil fumigation—III: Effects on enzyme activities, bacterial numbers and extractable ninhydrin reactive compounds

M. Amato, J. Ladd, J. Butler, 1976 .

Studies of nitrogen immobilization and mineralization in calcareous soils—II: Mineralization of immobilized nitrogen from soil fractions of different particle size and density

J. W. Parsons, M. Amato, J. N. Ladd, 1977 .

Importance of the molecular weight of humic and fulvic acids in determining their effects on protease activity

J. Ladd, J. Butler, 1971 .

Gas chromatographic analysis of amino acids from the action of proteolytic enzymes on soil humic acids

M. Amato, J. Ladd, P. Brisbane, 1972 .

Symbiotically-fixed and soil-derived nitrogen in legumes grown in pots in soils with different amounts of available nitrate

J. Ladd, J. Butler, 1985 .

Utilization by wheat crops of nitrogen from legume residues decomposing in soils in the field

R. B. Jackson, M. Amato, J. Ladd, 1983 .

Removal of soluble organic carbon from winery and distillery wastewaters by application to soil

J. Chapman, J. Ladd, R. Correll, 1995 .

Microbial biomass formed from 14C, 15N-labelled plant material decomposing in soils in the field

J. Oades, M. Amato, J. Ladd, 1981 .

Nitrogen cycling in legume-cereal rotations.

M. Amato, J. Ladd, 1985 .

Decomposition of plant material in Australian soils. I. The effect of quantity added on decomposition and on residual microbial biomass

R. B. Jackson, M. Amato, J. Ladd, 1983 .

Agriculture group and fertiliser society symposium soil nitrogen and crop growth

R. Q. Cannell, D. R. Lockyer, T. Batey, 1975 .

Nitrogen Fixation by Legumes and their Role as Sources of Nitrogen for Soil and Crop

M. Amato, J. Ladd, J. Butler, 1986 .

Relationships between biomass 14C and soluble organic 14C of a range of fumigated soils

M. Amato, J. Ladd, 1988 .

Soil microhabitats and carbon and nitrogen metabolism.

M. Amato, L. Jocteur-Monrozier, J. Ladd, 1990 .

Simulation of 14C turnover through the microbial biomass in soils incubated with 14C-labelled plant residues

P. Grace, J. A. Veen, M. Amato, 1995 .

Erratum to ``Components and microbial biomass content of size fractions in soils of contrasting aggregation'' [Geoderma 50 (1991) 37-62]

R. Fitzpatrick, L. J. Monrozier, R. C. Foster, 2006 .

Soil structure: carbon and nitrogen metabolism

J. Skjemstad, R. C. Foster, J. Ladd, 1993 .