A Comparison of Methods for the Determination of Soil Organic Phosphorus PDF Download
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Author: J. D. H. Williams
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 18
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Author: J. D. H. Williams
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 18
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Author: George Thomas Kaiser
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 294
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Author: Henry Walter Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Author: M.R. Carter
Publisher: CRC Press
ISBN: 1420005278
Category : Science
Languages : en
Pages : 1264
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Book Description
Thoroughly updated and revised, this second edition of the bestselling Soil Sampling and Methods of Analysis presents several new chapters in the areas of biological and physical analysis and soil sampling. Reflecting the burgeoning interest in soil ecology, new contributions describe the growing number and assortment of new microbiological
Author: Johan Frederik Dormaar
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 0
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Book Description
The different methods available for the determination of soil organic phosphorus are open to criticism. In the literature, the Kaila and Virtanen method (54) and the Mehta et al. method (67) in particular have been disputed as to which will yield the greater amount of organic phosphorus. The first objective of the present study was to evaluate these two extraction type methods by applying them to some Alberta soils. Subsequently, the study was expanded to determine whether a relationship existed between organic phosphorus and other soil properties including pH, total phosphorus, organic carbon, organic nitrogen and nonsulphate sulphur. The second objective was to evaluate an additional extraction type procedure (49) and two ignition type procedures (59, $4) which have been used by various workers for determining the total organic phosphorus content of soils. The third objective was to ascertain a workable modification of one or more of these methods particularly with the aid of the latest findings in the use of organic matter extractions. Soils from six soil zones of Alberta were sampled in duplicate in the field. The data showed that there was no appreciable difference between the Kaila-Virtanen and Mehta et al. methods for the soils studied. Chemical and statistical analyses suggested that organic phosphorus formed an integral part of organic matter. The ignition procedures appeared to be unsatisfactory as a result of incomplete combustion or of increased solubility of the original inorganic phosphorus. The Kaila and Virtanen method, which uses a mild extractant, seemed to be the best method for determining total organic phosphorus. However, by the addition of known phosphorus bearing compounds it was shown that all methods were very empirical indeed. The Kaila and Virtanen method was improved by making modifications. However, it was reasoned that it was not possible to extract all the organic phosphorus present in a soil with one procedure. Efforts should be turned to obtain and evaluate not only definite forms of organic phosphorus, but also a better appreciation of the bonds between humic acids and phosphorus.
Author: R. J. Hance
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
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Author: Benjamin L. Turner
Publisher: Cabi
ISBN: 9780851998220
Category : Science
Languages : en
Pages : 399
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Book Description
Phosphorus is essential for life, yet is often the element most limiting for biological productivity. Although most organisms take up phosphorus in an inorganic form, organic forms frequently dominate in soils and aquatic systems. Up to this point, the role of organic phosphorus and mechanisms for its dynamics have been poorly understood. However, recent advances in research have shed new light on the subject and this book brings together these advances. It covers the transformation and characterization of organic phosphorus in both terrestrial and aquatic systems. It will attract a broad range of scientists from several disciplines.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1180
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Author: Luke Gatiboni
Publisher: Frontiers Media SA
ISBN: 2889663574
Category : Science
Languages : en
Pages : 140
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Book Description
