Phosphorus uptake

Figure 16 Cumulative phosphorus uptake curves (per unit root length) predicted for two tomato cultivars Knox and C37 ) grown in a soil fertilised to two P-levels. (From Ref. 28.)...

T. S. Gahoonia and N. E. Nielsen, Variation in root hairs of barley cultivars doubled soil phosphorus uptake. Euphytica 98 11 (1997). 

P. C. R. Fontes, S. A. Barber, and G. E. Wilcox, Prediction of phosphorus uptake by two tomato cultivars growing under sufficient and insufficient phosphorus soil conditions using a mechanistic mathematical model. Plant Soil. 94 81 (1986). 

R. F. Grant and J. A. Robert.son, Phosphorus uptake by root systems mathematical modelling in ecosys. Plant Soil 188 219 (1997). 

M. Silberbush and S. A. Barber. Sensitivity of simulated phosphorus uptake to parameters used by a mathematical model. Plant Soil 74 93 (1983). 

Gillespie AR, Pope PE (1989) Alfalfa N2-fixation enhances the phosphorus uptake of walnut in interplantings. Plant Soil 113 291-293... 

Schachtman DP, Reid RJ, Ayling SM (1998) Phosphorus uptake by plants from soil to cell. Plant Physiol 116 447-453. doi http //www.plantphysiol.org Schindler DW (1974) Eutrophication and recovery in experimental lakes implications for lake management. Science 184 897-899. doi http //www.sciencemag.org/cgi/content/abstract/184/4139/897 Schindler DW, Hecky RE, Findlay DL, Stainton MP, Parker BR, Paterson MJ, Beaty KG, Lyng M, Kasian SEM (2008) Eutrophication of lakes cannot be controlled by reducing nitrogen input results of a 37-year whole-ecosystem experiment. Proc Natl Acad Sci USA 105 11254-11258. doi http //www.pnas.org/content/105/32/l 1254.abstract Scott JT, Condron LM (2003) Dynamics and availability of phosphorus in the rhizosphere of a temperate silvopastoral system. Biol Fert Soils 39 65-73 Shane MW, Lambers H (2005) Cluster roots a curiosity in context. Plant Soil 274 101-125. doi http //dx.doi.org/10.1007/s 11104-004-2725-7... 

Oehl F, Oberson A, Probst M, Fliessbach A, Roth HR, Frossard E (2001) Kinetics of microbial phosphorus uptake in cultivated soils. Biol Fertil Soils 34 31-41... 

Buchan [92] has carried out a study using electron microscopy combined with energy dispersive X-ray analysis, to determine the location and nature of the stored phosphorus in activated sludge samples from seven different treatment plants in South Africa, which all show enhanced phosphorus removal. The results indicate that there is a biological mechanism of enhanced phosphorus uptake in activated sludge. 

Collection of the phosphate-stripped activated sludge, which has extremely high phosphorus uptake capacity from the stripper. 

Figure 2. Crop Response to Weed Presence, left, and Relative Phosphorus Uptake, right. Closeness of the vertical lines indicates the relative possibility of competition for P being a factor in crop yield reduction.

Simpson, K. (1962). Effects of soil-moisture tension and fertilizers on the yield, growth and phosphorus uptake of potatoes. J. Sci. FoodAgric., 13,236-248. 

Pairunan, A.K., Robson, A.D. and Abbott, L.K. 1980. The effectiveness of vesicular-arbuscular mycorrhizas in increasing growth and phosphorus uptake of subterranean clover from phosphorus sources of different solubilities. New Phytologist 84 327-338. 

Currie, D., and J. Kalff. 1984. The relative importance of phytoplankton and bacterioplankton in phosphorus uptake in freshwater. Limnology and Oceanography 29 298-310. 

Salonen, K., R. I. Jones, H. De Haan, and M. James. 1994. Radiotracer study of phosphorus uptake by plankton and redistribution in the water column of a small humic lake. Limnology and Oceanography 39 69—83. 

Newman, E.I., Miller, M.H. Allelopathy among some British grasslands species. II Influence of root exudates on phosphorus uptake. J Ecol 1977 65 399-411. 

A. Kuhl (1962). Inorganic phosphorus uptake and metabolism. In R. A. Lewin. (Ed.), Physiology and Biochemistry of Algae, Academic Press, New York, pp. 221-229. 

Veldhuis et al. (1991) Phosphorus uptake C Fractionation (<20 pm) of a culture (colonies + cells) Single cells Free-living motile cells (7 pm diameter )... 

Reid, C. P. P. Bowen, G. D. (1979b). Effect of water stress on phosphorus uptake by mycorrhizas of Pinus radiata. New Phytologist, 83, 103-7. 

Jones, M. D., Durall, D. M. Tinker, P. B. (1998). A comparison of arbuscular and ectomycorrhizal Eucalyptus coccifera growth response, phosphorus uptake efficiency and external hyphal production. New Phytologist, 140, 125-34. 

Beever, R. E. Burns, D. J. W. (1980). Phosphorus uptake, storage and utilization by fungi. Advances in Botanical Research, 8, 127-219. 

All of these processes incorporate aerobic and anaerobic stages, based on phosphorus uptake during the aerobic stage and its subsequent release during the anaerobic stage. Commercial systems can be... 

In the lower reaches of the Genesee River, the results of the extractions suggest that substances other than hydrous oxides are phosphorus sinks. This is evident where the amount of sediment phosphorus extracted by hydrochloric acid steadily increases down river, while the oxalate extractable phosphorus remains relatively constant. Schwertmann (2 ) emphasized that the results of such procedures are best considered as a measure of the relative amount of a phase or, more generally, a measure of an element s reactivity in a sediment under carefully controlled conditions. Laboratory experiments (Figure 8) show that phosphorus uptake by calcium carbonate, under simulated natural conditions, proceeds slowly. The large hydrochloric acid extractable component observed at Rochester may arise from slow uptake and subsequent mineralization of dissolved inorganic phosphorus by carbonate minerals. 

Ae, N., J. Arihara, K, Okada, T. Yoshihara, and C. Johansen. 1990. Phosphorus uptake by pigeon pea and its role in cropping systems in the Indian subcontinent. Science 248 477-480. 

Harrison, W. G., and Harris, L. R. (1986). Isotope-dilution and its effects on measurements of nitrogen and phosphorus uptake by oceanic microplankton. Mar. Ecol. Prog. Ser. 27, 253—261. 

McGlathery, K. J., Marino, R., and Howarth, R. W. (1994). Variable rates of phosphorus uptake by shallow marine carbonate sediments Mechanisms and ecological significance. Biogeochemistry 25, 127-146. 

Paling, E. I., and McComb, A. J. (1994). Nitrogen and phosphorus uptake in seedlings of the seagrass Amphibolis antarctica in Western Australia. Hydrobiol. 294, 1—4. 

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