Influence of Rock Phosphate on Available Phosphorus as Measured by Plant Uptake and Soil Extractants PDF Download
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Author: José Espinosa
Publisher: INIAP Archivo Historico
ISBN:
Category : Corn
Languages : en
Pages : 152
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Book Description
Author: José Espinosa
Publisher: INIAP Archivo Historico
ISBN:
Category : Corn
Languages : en
Pages : 152
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Book Description
Author: JOSE ESPINOSA
Publisher: INIAP Archivo Historico
ISBN:
Category :
Languages : en
Pages : 72
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Book Description
Author: Sterling Robertson Olsen
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 20
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Book Description
Author: Paul Gerhardt Orth
Publisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 190
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Book Description
Author: Petr Ptáček
Publisher: BoD – Books on Demand
ISBN: 9535122657
Category : Science
Languages : en
Pages : 516
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Book Description
Apatite-type minerals and their synthetic analogues are of interest of many industrial branches and scientific disciplines including material sciences, chemical industry, agriculture, geology, medicine and dentistry. This book provides a basic overview of general knowledges of this topic in order to provide the comprehensive survey from a scientific and technological perspective. The book is divided into 10 chapters, which are devoted to the structure and properties of minerals from the supergroup of apatite, experimental techniques of preparation and characterization of synthetic analogues of apatite minerals, substitution in the structure of apatite as well as utilization of these materials in wide range of common and special advanced applications in industry, material sciences and research. Additionally, the phosphate rocks, their classification, geological role, mining and beneficiation of phosphate ore, production of elemental phosphorus, phosphoric acid and fertilizers are also described. Although this book is meant for chemist, material scientist and research engineers, the individual chapters contain theoretical background, historical aspects as well as examples of synthetic and analytical methods which may be also interesting for students and non-expert readers as well.
Author: Percy Edgar Brown
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 40
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Book Description
Author: Luke Gatiboni
Publisher: Frontiers Media SA
ISBN: 2889663574
Category : Science
Languages : en
Pages : 140
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Book Description
Author: Roscoe Ellis
Publisher:
ISBN:
Category : Montmorillonite
Languages : en
Pages : 168
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Book Description
![The Effect of Leaching on the Availability of Rock Phosphate to Corn [I.] PDF](https://books.google.com/books/content/images/frontcover/uq1KAAAAMAAJ?fife=w80-h100)
Author: Frederick Charles Bauer
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 58
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Book Description
Author: Osni Correa de Souza
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 86
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Book Description
The low solubility of many rock phosphate (RP) around the world is the main cause of their ineffectiveness when applied to soil as a source of P for crops. The low solubility decreases their value as P fertilizers and prevents their widespread use, especially for high P demanding crops. One method proposed to enhance RP solubility is to add sulfur (S) as an amendment. The oxidation of S to H2SO4 in the soil results in dissolution of the applied RP. This study tested three Brazilian RP sources (Araxa, Catalao, and Patos de Minas) mixed with S at a ratio of 5:1 (RP:S). The application of the RP-S mixtures proved to be a promising alternative method for increasing RP solubility and thus their effectiveness as P sources. The soil pH decreased proportionally to increasing rates of RP-S application. The NaHCO3 extractable soil P increased as a consequence of increased soil acidefication. The ryegrass growth, P uptake, plant P concentration and P recovered from RP sources were enhanced only when S was mixed with the RPs. On the other hand, when RP sources were applied directly without S, the available soil P as measured by NaHCO3 extraction was depleted with time regardless of source or rate of RP. The inefficiency of the directly applied RP sources to supply adequate P was evidenced by less plant growth than applied with S. Also, in addition to this inadequate supply of for plant assimilation, the directly applied RP sources failed to develop a residual reserve of available P in the soil, even at very high application ...
