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Estimation of phosphorus availability in composts and compost/peat mixtures by different extraction methods

, : Estimation of phosphorus availability in composts and compost/peat mixtures by different extraction methods. Communications in Soil Science & Plant Analysis 25(11-12): 2063-2080

A trial was carried out with compost and compost/peat mixtures to test several extraction methods for the estimation of availability of phosphorus (P). The test plant was Dendranthema grandiflorum. All composts had a high pH and salt content. Amounts of P extracted by different extraction methods decreased in the order: Formate lt CAL lt NH-4-acetate lt CaCl-2/DTPA lt CaCl-2. Dilution of compost with peat decreased pH and increased availability of P. The better availability of P caused by dilution with peat was not reflected by the Formate-, CAL-, and NH-4-acetate method. These acid and well-buffered extraction solutions overestimate P, and are therefore not suited to estimate availability of P in composts and compost/peat mixtures. Weak extraction solutions, like CaCl-2 and CaCl-2/DTPA, gave results which showed a good correlation with P content of plants and P uptake. The advantage of the latter method compared with CaCl-2 is the extraction of amounts of P comparable to amounts taken up by the plants. Therefore of all the extraction methods tested, the CaCl-2/DTPA method showed the best suitability to estimate the availability of P in composts and compost/peat mixtures.

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Accession: 008626114

DOI: 10.1080/00103629409369172

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Harris, S.R., 1996: How should treatments be critiqued for scientific merit?. The overall goal of this article is to provide physical therapists with some strategies for critically analyzing the scientific merit of physical therapy treatments. To accomplish this goal, five characteristics of nonstandard or alternative thera...

Neubauer, L. W., 1949: Redwood boards, durability studied in 12-year test of decay-resistance and weathering. Redwood boards endured for 12 yrs. conditions that destroyed Douglas-fir in 3 yrs. and white fir in 4 yrs.

Billard, P.; Dubow, M.S., 1998: Bioluminescence-based assays for detection and characterization of bacteria and chemicals in clinical laboratories. Objectives: To survey recent advances in the application of bioluminescence to public health problems. The usefulness of bacterial (lux) and eucaryotic (luc) luciferase genes is presented, along with several examples that demonstrate their value a...

Garcia Delgado, I.; Prieto, S.; Gil Fraguas, L.; Robles, E.; Rufilanchas, J. J.; Hawkins, F., 1997: Calcitonin, etidronate, and calcidiol treatment in bone loss after cardiac transplantation. Cardiac transplantation is associated with severe bone loss caused by glucocorticoids, immunosuppressive treatment, and other factors. Treatment protocols for the prevention of bone loss is being studied. Forty patients who underwent cardiac trans...

Weinberger, A., 1995: Gout, uric acid metabolism, and crystal-induced inflammation. Serum triglyceride levels are significantly higher and serum high-density lipoprotein cholesterol levels are lower in patients with gout compared with healthy individuals. Whereas increased serum triglyceride levels exist intrinsically in gout, se...

Preveden, V., 1974: Production of planting material in the forest tree nurseries of INCEL. Radovi Sumarskog fakulteta i Instituta za sumarstvo u Sarajevuub 1977) 19(4): 117-128

Agar, G.; Adiguzel, A.; Baris, O.; Sengul, M.; Gulluce, M.; Sahin, F.; Bayrak, O. F., 2006: FAME and RAPD analysis of selected Vicia taxa from eastern Anatolia, Turkey. Fatty acid (FAs) and RAPD profiles were used to examine the phenotypic and genetic relationships among 12 Vicia taxa, namely V. villosa subsp. villosa, V. sativa subsp. nigra, V. faba subsp. minor var. minor, V. pannonica var. pannonica, V. cracca...

Moore James G., 1970: Submarine basalt from the Revillagigedo islands region, Mexico. Ocean-floor dredging and submarine photography in the Revillagigedo region off the west coast of Mexico reveal that the dominant exposed rock of the submarine part of the large island-forming volcanoes (Roca Partida and San Benedicto) is a uniform...

Shamacharya K.; Srinivasan T. R., 1972: Use of small scale aerial photographs for the preparation of small scale soil maps. International Archives of Photogrammetry and Remote Sensing = Archives Internationales de Photogrammetrie et de Teledetection = International Archiv der Photogrammetrie und Fernerkundung 19, Part 6(Proc

Romaire, M.A.; Bowles, E.J.Aiello.; Anderson, M.L.; Buist, D.S.M., 2012: Comparative effectiveness of mailed reminder letters on mammography screening compliance. Reminder letters are effective at prompting women to schedule mammograms. Less well studied are reminders addressing multiple preventive service recommendations. We compared the effectiveness of a mammogram-specific reminder sent when a woman was...