Download or read book Phosphate Sorption and Desorption Characteristics in Soil Systems Determined with a Polynuclear Al saturated Cation Exchange Resin written by Yingming Liang and published by . This book was released on 1988 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of the Phosphorus Supplying Capacity of Soils by Desorption Q I Relationships and Kinetics written by Klaus Peter Raven and published by . This book was released on 1992 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agronomy News written by and published by . This book was released on 1989 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.

Download or read book Factors Affecting Phosphate Sorption by Soils and Minerals written by Sergio Jorge Volkweiss and published by . This book was released on 1973 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research were to study the P sorption characteristics of soils and the effects of pH and of cation type and concentration on P sorption by soils and minerals. In an attempt to characterize the nature and properties of P sorption sites of soils, P sorption isotherms in a 0.1 N NaC1 system were obtained for six limed and unlimed agricultural soils from Rio Grande do Sul, Brazil. The equilibration time was 48 hours and the concentration of P in the final solution varied from near zero to 20 ugP/ml. Langmuir plots (c/x vs c) of the data resulted in curvilinear and/or multi-straight line relationships suggesting the presence of 2 or more populations of sites with different affinities for P. An iterative multiple regression analysis computer program that assumes that each population of site follows the Langmuir equation was used to analyze the sorption data. Three populations of sites with different affinities for P were detected and the Langmuir constants, k (binding energy term) and b (sorption maximum) were estimated for each population of sites. The median and range for values of k (ml/ug P) and b (ugP/g) for the three populations of site were in decreasing order of affinity for P:K1 = 140, (40-2870) and b1=120 (8-370); K2=2.4, (0.63-10) and b2=174, (25-704); and K3 =0.095, (0.051-0.27) and b3=763 (131-1460). On the average, the total number of P sorption sites (total) was made up of 10% of sites with high affinity for P, 22% with moderate and 68% with low affinity ...

Download or read book Diffusive Movement and Reactions of Phosphate and Associated Cations in an Acid Soil and in Aluminum rich Soil like Systems written by Xiying Hao and published by . This book was released on 1998 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Sorption Sites for Phosphate written by Wayne P. Robarge and published by . This book was released on 1975 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphate Sorption and Desorption Characteristics of Irish Soils and Their Relationship with Other Soil Properties written by Thomas D. Branigan and published by . This book was released on 1977 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transformation of Inorganic Phosphorus Under Continuous Flooded Conditions and Wet dry Cycles and the Phosphorus Sorption desorption Characteristics of Two Acid Sulfate Soils written by Daud Bin Chinta and published by . This book was released on 1981 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphate in Soils written by H. Magdi Selim and published by CRC Press. This book was released on 2018-10-08 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by One of the Best Specialists in Soil Science Recent studies reveal that Phosphorus (P) in the form of phosphate, a macronutrient essential for plant growth, and crop yields can influence the bioavailability, retention, and mobility of trace elements, metal(loid)s, and radio nuclides in soils. When this occurs, phosphates can affect the dynamics of heavy metals and influence soil characteristics, impacting soil mobility and toxicity. Phosphate in Soils: Interaction with Micronutrients, Radionuclides and Heavy Metals utilizes the latest research to emphasize the role that phosphate plays in enhancing or reducing the mobility of heavy metals in soil, and the soil-water-plant environment. It provides an in-depth understanding of each heavy metal species, and expands on phosphate interactions in geological material. Composed of 12 chapters, this text: Provides an overview of the reactions of metal(loid)s and common P compounds that are used as fertilizer in soils Emphasizes the effect of phosphorus on copper and zinc adsorption in acid soils Discusses findings on the influence of phosphate compounds on speciation, mobility, and bioavailability of heavy metals in soils as well as the role of phosphates on in situ and phytoremediation of heavy metals for contaminated soils Places emphasis on the influence of phosphate on various heavy metals species in soils, and their solubility/mobility and availability Provides extensive information on testing various high phosphate materials for remediation of heavy metal, micronutrients, and radionuclides contaminated sites Explores the reactivity of heavy metals, micronutrients and radionuclides elements in several soils Presents a case study illustrating various remediation efforts of acidic soils and remediation of Cu, Zn, and lead (Pb) contaminated soils around nonferrous industrial plants Emphasizes the significance of common ions (cations and anions) on phosphate mobility and sorption in soils, and more The author includes analytical and numerical solutions along with hands-on applications, and addresses other topics that include the transport and sorption modeling of heavy metals in the presence of phosphate at different scales in the vadose zone.

Download or read book Kinetics of Phosphorus Desorption from Phosphorus Amended Soils Using a Dual Chamber Diffusion Apparatus written by Timothy Eugene Moody and published by . This book was released on 1990 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphate Solubility in Andosols and Oxisols written by Ary Carlos Xavier Velloso and published by . This book was released on 1969 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinetic Model for Orthophosphate Reactions in Mineral Soils written by Carl George Enfield and published by . This book was released on 1975 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Sorption and Desorption Characteristics by a Soil Column Technique written by Michel A. Beck and published by . This book was released on 1996 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Adsorption Studies with an Acid Aluminous Soil and Aluminum Hydroxide Suspensions written by James Thomas Sims and published by . This book was released on 1981 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sorption and Movement of Inorganic Phosphorus in Alfisol written by Otavio Antonio De Camargo and published by . This book was released on 1978 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Kinetics of Phosphorus Mineralization in Soils Under Oxidizing Conditions written by Y. V. Subbarao and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Apparent Phosphorus Fixation and Phosphorus Sorption desorption Characteristics of Selected Soils of Louisiana written by Mohd. Lukamanur Rahman Bhuiyan and published by . This book was released on 1985 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.