Abstract
The residual value of superphosphate and several rock phosphates was measured in three field experiments in Western Australia. The rock phosphates were Christmas Island C-grade ore, calcined C-grade ore (Calciphos) and apatite rock phosphates. The predictive capacity of the Colwell, Olsen and Bray 1 soil tests for phosphate were also evaluated.
As measured by yields of variously wheat, oats, barley or clover, the effectiveness of an initial application of superphosphate decreased to about 50% of that of newly applied superphosphate between years 1 and 2, and further decreased to about 20% over subsequent years. At low levels of application, all the rock phosphates were between 10–20% as effective as superphosphate in the year of application for all experiments. Relative to newly applied superphosphate their effectiveness remained approximately constant in subsequent years for two experiments and doubled for the other experiment.
The Colwell soil test predicted that the effectiveness of superphosphate decreased to about 45% between years 2 and 3, followed by a more gradual decrease to approximately 15%. At low levels of application, the effectiveness of the rock phosphates as predicted by the Colwell soil test values was initially very low relative to superphosphate (2–30%), and remained low in subsequent years (2–20%). For superphosphate treated soil, the proportion of the added phosphorus extracted generally increased as the level of application increased. By contrast, for rock phosphate treated soil, the proportion of added phosphorus extracted decreased as the level of application increased.
For all three experiments there were highly significant positive correlations between amounts of P extracted by the three soil tests. Consequently all soil tests were equally predictive of yield but usually for each soil test separate calibrations between yield and soil test values were required for the different fertilizers and for each combination of fertilizer and plant species and for each year.
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References
Abbott C A (1983) Australian phosphorus: availability and economic perspectives. In: Costin A B and Williams C H (eds) Phosphorus in Australia, Ch 9, pp 43–69. Canberra, Aust: Aust Nat Univ
AOAC (1975) ‘official Methods of Analysis’. 12th Edn, Sect. 2.037. Assoc Off Agric Chem: Washington DC
Barrow N J (1980) Evaluation and utilization of residual phosphorus in soils. In: Khasawneh F E, Sample E C and Kamprath E J (eds) The Role of Phosphorus in Agriculture, ch 13, pp 339–59. Madison: Am Soc Agron
Barrow N J and Shaw T C (1976) Sodium bicarbonate as an extractant for soil phosphate. I. Separation of the factors affecting the amount of phosphate displaced from soil from those affecting secondary adsorption. Geoderma 16: 91–107
Bolland M D A (1985) Residual value for wheat of phosphorus from Calciphos, Duchess rock phosphate and triple superphosphate on a lateritic soil in south-western Australia. Aust J Exp Agric 25: 198–208
Bolland M D A and Barrow N J (1988) Effect of level of application on the relative effectiveness of rock phosphate. Fert Res 15: 000–000
Bolland M D A and Bowden J W (1982) Long-term availability of phosphorus from calcined rock phosphate compared with superphosphate. Aust J Agric Res 33: 1061–71
Bolland M D A and Bowden J W (1984) The initial and residual value for subterranean clover of phosphorus from crandallite rock phosphates, apatite rock phosphates and superphosphate. Fert Res 5: 295–307
Bolland M D A, Bowden J W, D'Antuono M F and Gilkes R J (1984) The current and residual value of superphosphate, Christmas Island C-grade ore, and Calciphos as fertilizers for a subterranean clover pasture. Fert Res 5: 335–54
Bowden J W and Bennett D (1976) The ‘Decide’ model for predicting superphosphate requirements. Proc Phos Agric Sym. 1974 (Aust Instit Agric Sci; Parkville, Vic, Aust)
Bray R M and Kurtz L T (1945) Determination of total, organic and available forms of phosphorus in soils. Soil Sci 59: 39–45
Colwell J D (1963) The estimation of phosphorus fertilizer requirements of wheat in southern New South Wales by soil analysis. Aust J Exp Agric Anim Husb 3: 190–7
Doak B W Gallaher P J Evans L and Muller F B (1965) Low temperature calcination of C-grade phosphates from Christmas Island. NZ J Agric Res 8: 15–29
Earle D F and McGowan A A (1979) Evaluation and calibration of an automated rising plate meter for estimating dry matter yield of pasture. Aust J Exp Agric Anim Husb 19: 337–43
Gilkes R J and Palmer B (1979) Calcined Christmas Island C-grade rock phosphate fertilizers: mineralogical properties, reversion and assessment by chemical extraction. Aust J Soil Res 17: 467–81
Ghosh A K and Gilkes R J (1987) The initial and residual agronomic effectiveness of some Indian, USA and Australian rock phosphates. Fert Res 12: 201–218
Hoare J (1980) Phosphate raw materials and fertilizers. II. A case history of marginal raw materials. In: Khasawneh F E Sample E C and Kamprath E J (eds) The Role of Phosphorus in Agriculture, Ch 4, pp 121–8. Madison: Am Soc Agron
Hughes J C and Gilkes R J (1986a) The effect of rock phosphate properties on the extent of fertilizer dissolution in soils. Aust J Soil Res 24: 209–17
Hughes J C and Gilkes R J (1986b) The effect of soil properties and level of fertilizer application on the dissolution of Sechura rock phosphate in some soils from Brazil, Colombia, Australia and Nigeria. Aust J Soil Res 24: 219–27
Kanabo I A K and Gilkes R J (1987) The influence of the addition of goethite to soil on the dissolution of North Carolina phosphate rock. Aust J Soil Res 25: 313–322
Kanabo I A K and Gilkes R J (1988) The effects of moisture regime and incubation period on the dissolution of North Carolina phosphate rock in soil. Aust J Soil Res 25 (in press)
Kanabo I A K and Gilkes R J (1988) The effect of rate of application on the dissolution of North Carolina rock phosphate. Fert Res (in press)
Khasawneh F E and Doll E C (1978) The use of phosphate rock for direct application to soils. Ad Agron 30: 159–206
Murphy J and Riley J P (1962) A modified single solution method for the determination of phosphate in natural waters. Anal Chim Acta 27: 31–36
Northcote K H (1979) A Factual Key for Recognition of Australian Soils 4th Edn. Rellim Tech Publ: Glenside, South Australia
Olsen S R, Cole C V, Watanabe F S and Dean L A (1954) Estimation of available phosphorus in soils by extraction with sodium bicarbonate. U.S. Dep Agric Circ No 939
Ozanne P G and Shaw T C (1967) Phosphate sorption by soils as a measure of the phosphate requirement for pasture growth. Aust J Agric Res 18: 601–12
Smith A N (1983) Australian dependence on phosphorus. In: Costin, A B and Williams C H (eds) Phosphorus in Australia, Ch 3, pp. 75–91. Canberra, Aust: Aust Nat Univ
Smyth T J and Sanchez P A (1982) Phosphate rock dissolution and availability in Cerrado soils as affected by sorption capacity. Soil Sci Soc Am J 46: 339–45
White M S (1971) Calcination of Christmas Island phosphates. NZ J Sci 14: 971–92
Wild A (1958) The phosphate content of Australian soils. Aust J Agric Res 9: 193–204
van der Paauw F (1965) Factors controlling the efficiency of rock phosphates for potatoes and rye on humic sandy soils. Plant and Soil 22: 81–98
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Bolland, M.D.A., Gilkes, R.J. & Allen, D.G. The residual value of superphosphate and rock phosphates for lateritic soils and its evaluation using three soil phosphate tests. Fertilizer Research 15, 253–280 (1988). https://doi.org/10.1007/BF01051347
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DOI: https://doi.org/10.1007/BF01051347