Abstract
A field trial was carried out to compare the transformations and plant uptake of urine N and S in a short-term pasture from within an arable/pasture ley rotation and a long-term pasture. Animal urine labelled with 15N and 35S was applied to microplots at both sites. These microplots were destructively sampled at various time intervals over 12 months and analysed for 15N and 35S. It is known that soil organic matter accumulates under short-term pastures compared with a long-term pasture in which accumulation and degradation are in balance. Consequently, it was hypothesised that immobilization of urine N and S is more intense in the short-term. However, in this study there was considerably less immobilization of 15N and 35S into soil organic forms under short-term pasture than long-term pasture. This was attributable to a greater pasture dry matter response to urine application under the short-term pasture (due to its inherently low N fertility) resulting in a greater plant uptake of 15N and 35S with less 15N and 35S consequently being available for immobilization. At both sites, all of the applied 35S was accounted for through plant uptake and recovery in the soil, but 21–48% of the 15N was unaccounted for and presumed to have been lost through gaseous emissions. It was concluded that accumulation of soil organic N and S under short-term pastures is likely to be attributable to turnover of plant residues (particularly root material) and does not appear to be related to immobilization in urine patches.
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References
Blakemore LC, Searle PL & Daly BK (1972) Methods for chemical analysis of soils. New Zealand Soil Bureau Report 10A. Wellington: Government Printer
Bremner JM & Mulvaney CS (1982) Nitrogen-total. In: Page AL, Miller RH & Keeney DR (eds) Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties, 2nd edn, pp 595–624. Madison, Wisc: American Society of Agronomy
Brookes PC, Landman A, Pruden g & Jenkinson DS (1985) Chloroform fumigation and the release of nitrogen: a rapid direct extraction method to measure microbial biomass nitrogen in the soil. Soil Biol Biochem 17: 837–842
Clement CR & Williams TE (1964) Leys and soil organic matter I. The accumulation of organic carbon in soils under different leys. J Agric Sci (Cambridge) 63: 377–383
Clement CR & Williams TE (1967) Leys and organic matter II. The accumulation of nitrogen in soil under different leys. J Agric Sci (Cambridge) 69: 133–138
Cornforth IS & Sinclair AG (1984) Fertiliser and lime recommendations for pastures and crops, 2nd edn. Wellington: Ministry of Agriculture & Fisheries
Dale WR (1961) Some effects of sheep urine on pasture. NZ Grass Assoc Proc 13: 118–124
During C & McNaught KJ (1961) Effects of cow urine on growth of pasture and uptake of nutrients. NZ J Agric Res 4: 591–605
Francis GS (1995) Minimising nitrate leaching losses following cultivation of temporary leguminous pastures in mixed cropping rotations in Canterbury, New Zealand. J Contam Hyd 20: 313–327
Fraser PM, Cameron KC & Sherlock RR (1994) Lysimeter study of the fate of nitrogen in animal returns to irrigated pasture. European J Soil Sci 45: 439–447
Ghani A, McLaren RG & Swift RS (1993) The incorporation and transformations of 35S in soil: effects of soil conditioning and glucose or sulphate additions. Soil Biol Biochem 25: 327–335
Hauck RD & Bremner KM (1976) Use of tracers for soil and fertilizer research. Adv Agron 28: 219–265
Haynes RJ & Beare MH (1996) Aggregation and organic carbon storage in Meso-thermal humid soils. In: Carter MR & Stewart BA (eds) Structure and Organic Matter Storage in Agricultural Soils, pp 213–262. Boca Raton, Fl: CRC Press
Haynes RJ & Francis GS (1990) Effects of mixed cropping systems on changes in soil properties on the Canterbury Plains. NZ J Ecol 14: 73–82
Haynes RJ, Swift RS & Stephen RC (1991) Influence of mixed cropping rotations (pasture-arable) on organic matter content, water stable aggregation and clod porosity in a group of soils. Soil Till Res 19: 77–87
Haynes RJ & Williams PH (1992) Accumulation of soil organic matter and the forms, mineralization potential and plantavailability of accumulated organic sulphur: effects of pasture improvement and intense cultivation. Soil Biol Biochem 24: 209–217
Haynes RJ & Williams PH (1993) Nutrient cycling and soil fertility in the grazed pasture ecosystem. Adv Agron 49: 119–199
Jackman RH (1964) Accumulation of organic matter in some New Zealand soils under permanent pasture. I. Patterns of change of organic carbon, nitrogen, sulphur, and phosphorus. NZ J Agric Res 7: 445–471
Jarvis SC, Scholefield D & Pain BF (1995) Nitrogen cycling in grazing systems. In: Bacon PE (ed) Nitrogen Fertilization in the Environment, pp 381–420. New York: Marcel Dekker
Keeney DR & MacGregor AN (1978) Short-term cycling of 15Nurea in a ryegrass-clover pasture. NZ J Agric Res 21: 443–448
Keeney DR & Nelson DW (1982) Nitrogen – inorganic forms. In: Page AL, Miller RH & Keeney DR (eds), Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties, 2nd edn, pp 699–704. Madison, Wisc: American Society of Agronomy
Lovell RD & Jarvis SC (1996) Effects of urine on soil microbial biomass, methanogenesis, nitrification and denitrification in grassland soils. Plant Soil 186: 265–273
McLaren RG & Swift RS (1977) Changes in soil sulphur fractions due to long term cultivation of soils. J Soil Sci 28: 445–453
Müller C, Sherlock RR & Williams PH (1997) Factors influencing N2O emission from pasture soil affected by animal urine and ploughing. European J Soil Sci: in press
New Zealand Soil Bureau (1968) Soils of New Zealand. Part 3. NZ Soil Bur Bull 26: 127 p
Quin BF & Woods PH (1976) Rapid manual determination of sulfur and phosphorus in plant material. Comm Soil Sci Plant Analysis 7: 415–426
Saunders WMH (1984) Mineral composition of soil and pasture from areas of gazed paddocks, affected and unaffected by dung and urine. NZ J Agric Res 27: 405–412
Sherlock RR & Goh KM (1984) Dynamics of ammonia volatilization from simulated urine patches and aqueous urea applied to pasture. I. Field experiments. Fert Res 5: 181–195
Thomas RJ, Logan KAB, Ironside AD & Bolton GR (1988) Transformations and fate of sheep urine-N applied to an upland UK pasture at different times during the growing season. Plant Soil 107: 173–181
Whitehead DC & Bristow AW (1990) Transformations of nitrogen following the application of 15N-labelled cattle urine to an established grass sward. J Appl Ecol 27: 667–678
Williams PH & Haynes RJ (1992) Fate of 35S-labelled urine sulphate in urine affected areas of pasture soil under field conditions. J Agric Sci Camb 121: 83–89
Williams PH & Haynes RJ (1993) Forms of sulphur in sheep excreta and their fate after application on to pasture soil. J Sci Food Agric 62: 323–329
Williams PH & Haynes RJ (1994) Comparison of initial wetting pattern, nutrient concentration in soil solution and the fate of 15N-labelled urine in sheep and cattle urine patch areas of pasture soil. Plant Soil 162: 49–59
Williams PH & Haynes RJ (1997) Recovery of N derived from 15Nlabelled grass/clover residues, recently immobilised urine 15N or native soil organic N by a wheat crop following cultivation of a pasture soil. Agric Ecosyst Environ 63: 67–72
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Williams, P., Haynes, R. Transformations and plant uptake of urine N and S in long and short-term pastures. Nutrient Cycling in Agroecosystems 56, 109–116 (2000). https://doi.org/10.1023/A:1009885413823
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DOI: https://doi.org/10.1023/A:1009885413823