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List of works by Prue H Williams

Accumulation of soil organic matter and the forms, mineralization potential and plant-availability of accumulated organic sulphur: Effects of pasture improvement and intensive cultivation

scientific article published in March 1992

Balance sheet of phosphorus, sulphur and potassium in a long-term grazed pasture supplied with superphosphate

scientific article published in January 1992

Comparison of initial wetting pattern, nutrient concentrations in soil solution and the fate of15N-labelled urine in sheep and cattle urine patch areas of pasture soil

scientific article published in May 1994

Earthworm species, population size and biomass under different cropping systems across the Canterbury Plains, New Zealand

scientific article

Effect of dairy cow urine on potassium adsorption by soil

scientific article published in October 1988

Effects of pasture improvement and intensive cultivation on microbial biomass, enzyme activities, and composition and size of earthworm populations

scientific article

Emission of nitric oxide and nitrous oxide from soil under field and laboratory conditions

scientific article published in December 1998

Estimation of potassium losses from a grazed dairy farm in Taranaki

scientific article published in January 1988

Fate of <sup>35</sup>S-labelled urine sulphate in urine affected areas of pasture soil under field conditions

scientific article published in August 1993

Fate of potassium in dairy cow urine applied to intact soil cores

scientific article published in January 1990

Fate of urea applied to winter spinach in New Zealand

scientific article published in November 2003

Field method to determine N 2 O emission from nitrification and denitrification

scientific article published on 16 November 1998

Influence of stock camping behaviour on the soil microbiological and biochemical properties of grazed pastoral soils

scientific article published in January 1999

Long-term effect of superphosphate on accumulation of soil phosphorus and exchangeable cations on a grazed, irrigated pasture site

scientific article published in April 1992

Mass balance modelling of potassium losses from grazed dairy pasture

scientific article published in 1990

Mechanistic model for nitrous oxide emission via nitrification and denitrification

scientific article published on 17 February 1997

Nitrogen mineralization, nitrate leaching and crop growth after ploughing-in leguminous and non-leguminous grain crop residues

scientific article published in August 1994

Nitrogen mineralization, nitrate leaching and crop growth following cultivation of a temporary leguminous pasture in autumn and winter

scientific article published in October 1992

Nitrous oxide emissions and methane oxidation by soil following cultivation of two different leguminous pastures

scientific article published on 11 November 1999

Nutrient Cycling and Soil Fertility in the Grazed Pasture Ecosystem

Recovery of 15N-labelled fertiliser by a perennial ryegrass seed crop and a subsequent wheat crop

scientific article published in January 2000

Recovery of N derived from 15N-labelled grass/clover residues, recently immobilised urine 15N or native soil organic N by a wheat crop following cultivation of a pasture soil

scientific article published in May 1997

Response of pastures to nitrogen fertiliser applied in autumn and spring on the West Coast of South Island, New Zealand

scientific article published in July 1983

The effect of preferential flow of dairy cow urine and simulated rainfall on movement of potassium through undisturbed topsoil cores

scientific article published in 1990

The effects of a nitrification inhibitor on leaching losses and recovery of mineralized nitrogen by a wheat crop after ploughing-in temporary leguminous pastures

scientific article published in January 1995

The fate of potassium in grazed dairy pastures

1988 doctoral thesis by Prudence Helen Williams at Massey University

Transformations and plant uptake of urine N and S in long and short-term pastures

scientific article published in January 2000

Transformations and plant uptake of urine-sulphate in urine-affected areas of pasture soil

scientific article published in September 1992

Uptake and residual value of <sup>15</sup>N-labelled fertilizer applied to first and second year grass seed crops in New Zealand

scientific article published in August 2001

Uptake of potassium and nitrogen by pasture from urine-affected soil

scientific article published in July 1989

Use of potassium bromide solutions to simulate dairy cow urine flow and retention in pasture soils

scientific article published in July 1990