Abstract
A balance sheet of P, S and K was constructed for a long-term trial which investigates the effects of three rates of superphosphate (9% P, 11% S) on pasture production on border-strip irrigated land grazed with sheep. A balance sheet of the inputs and outputs of P, S and K to the trial over a 38 year period showed that of the nutrients applied in fertiliser, only 51–59% of the P and 15–31% of the S were retained in the soil. Small amounts were lost in animal products (4–19% of the applied nutrients) but major losses were attributed to runoff of P as particulate matter (dung and soil particles) during irrigation and leaching of sulphate-S during irrigation. Losses of K from the site were small and had no effect on total soil K content. The distribution of soil nutrients across the border-strips was also investigated. The results showed that the concentrations of total soil P and S and exchangeable K were significantly greater at the sides of the irrigation borders than in the main strip area of pasture. This was caused by deposition of a disproportionate amount of dung and urine (and therefore nutrients) on the levees where the sheep tended to camp. It was calculated that with increasing superphosphate rates greater amounts of P were transferred to the levees due to the increased amounts of P being recycled via the animals (as a result of increased herbage P concentration, pasture production and stocking rate).
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References
Barrow NJ (1987) Return of nutrients by animals. In: Snaydon RW (ed.) Managed Grasslands. pp. 181–186. Oxford, Elsevier
Close ME and Woods PH (1986) Leaching losses from irrigated pasture: Waiau irrigation scheme, North Canterbury. NZJ Agric Res 29: 339–349
Cornforth IS and Sinclair AG (1984) Fertiliser and Lime Recommendations for Pastures and Crops in New Zealand, 2nd edn. Wellington, NZ, Ministry of Agriculture and Fisheries
Gillingham AG and During C (1973) Pasture production and transfer of fertility within a long-established hill pasture. NZJ Exp Agric 1: 227–232
Gillingham AG, Syers JK and Gregg PEH (1980) Phosphorus uptake and return in grazed, steep hill pastures II. Above-ground components of the phosphorus cycle. NZJ Agric Res 23: 323–330.
Goh KM and Nguyen ML (1990) Effects of grazing animals on the plant availability of sulphur fertilisers in grazed pastures. Proc NZ Grass Assoc 52: 181–185.
Grace ND (1983) The mineral requirements of grazing ruminants. NZ Soc Anim Prod Occass Pub 9. pp 150
Hilder EJ (1966) Distribution of excreta by sheep at pasture. Proc. Xth Int Grass Cong: 977–981
Joyce JP and Rattray PV (1970) Nutritive value of white clover and perennial ryegrass. NZJ Agric Res 13: 792–807
Knudsen D, Peterson GA and Pratt PF (1982) Lithium, sodium and potassium. In: Page AL, Miller RH and Keeney DR (eds.) Methods of Soil Analysis Part 2 Chemical and Microbiological Properties, 2nd edn, pp. 225–246. Madison, Wisc: American Society of Agronomy, Soil Science Society of America
Middleton KR and Smith GS (1978) The concept of a climax in relation to the fertiliser input of a pastoral ecosystem. Plant Soil 50: 595–614
Morton JD and Baird DB (1990) Spatial distribution of dung patches under sheep grazing. NZJ Agric Res 33: 285–294
New Zealand Soil Bureau (1968) Soils of New Zealand. Part 3. NZ Soil Bureau Bulletin 26(3)
Nguyen ML, Rickard DS and McBride SD (1989) Pasture production and changes in phosphorus and sulphur status in irrigated pastures receiving long-term applications of superphosphate fertiliser. NZJ Agric Res 32: 245–262
Olsen SR and Sommers LE (1982) Phosphorus. In: Page AL, Miller RH and Keeney DR (eds.) Methods of Soil Analysis Part 2 Chemical and Microbiological Properties, 2nd edn, pp. 403–430. Madison, Wisc, American Society of Agronomy, Soil Science Society of America
Quin BF and Woods PH (1976) Rapid manual determination of sulphur and phosphorus in plant material. Commun Soil Sci Plant Anal 7: 415–426
Rowarth JS, Gillingham AG, Tillman RW and Syers JK (1988) Effects of season and fertiliser rate on phosphorus concentrations in pasture and sheep faeces in hill country. NZJ Agric Res 31: 187–193
Saggar S, Mackay AD, Hedley MJ, Lambert MG and Clark DA (1988) The development of a nutrient transfer model to explain the fate of P and S in a grazed hill country pasture. In: White RE and Currie LD (eds) Proceedings of the Workshop Towards the More Efficient Use of Soil and Fertilizer Sulphur, pp 262–278. Palmerston North, NZ, Massey University
Sagger S, Hedley MJ, Gillingham AG, Rowarth JS, Richardson S, Bolan NS and Gregg PEH (1990) Predicting the fate of fertiliser sulphur in grazed hill country pastures by modelling the transfer and accumulation of soil phosphorus. NZJ Agric Res 33: 129–138.
Tabatabai MA (1982) Sulfur In: Page AL, Miller RH and Keeney DR (eds.) Methods of Soil Analysis Part 2 Chemical and Microbiological Properties, 2nd edn, pp. 501–538. Madison, Wisc, American Society of Agronomy, Soil Science Society of America
Taylor AR (1981) A method for surface irrigation design based on infiltration using the border strip as an infiltrometer. PhD Thesis, Lincoln University, NZ
Wilkinson, SR and Lowrey RW (1973) Cycling of mineral nutrients in pasture ecosystems. In: Butler GW and Bailey RW (eds.) Chemistry and Biochemistry of Herbage 2, pp. 247–315. London, Academic Press
Williams PH and Haynes RJ (1990) Cycling of P and S through the soil-plant-animal system under intensively grazed grass-clover pastures. Trans 14th Int Cong Soil Sci IV: 276–281
Williams PH, Gregg PEH and Hedley MJ (1990) Use of potassium bromide solutions to simulate dairy cow urine flow and retention in pasture soils. NZJ Agric Res 33: 489–495
Williams PH, Gregg PEH and Hedley MJ (1990) Mass balance modelling of potassium losses from grazed dairy pasture. NZJ Agric Res 33: 661–668
Williams PH, Gregg, PEH and Hedley MJ (1990) Losses of potassium from grazed dairy pastures. Proc NZ Grass Assoc 52: 187–190
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Williams, P.H., Haynes, R.J. Balance sheet of phosphorus, sulphur and potassium in a long-term grazed pasture supplied with superphosphate. Fertilizer Research 31, 51–60 (1992). https://doi.org/10.1007/BF01064227
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DOI: https://doi.org/10.1007/BF01064227