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Sorption And Desorption Of Inorganic Phosphate By Soils As Influenced By Inorganic And Organic Anions
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Book Synopsis Sorption and Desorption of Inorganic Phosphate by Soils as Influenced by Inorganic and Organic Anions by : Keith David Earl
Download or read book Sorption and Desorption of Inorganic Phosphate by Soils as Influenced by Inorganic and Organic Anions written by Keith David Earl and published by . This book was released on 1975 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transformation of Inorganic Phosphorus Under Continuous Flooded Conditions and Wet-dry Cycles and the Phosphorus Sorption-desorption Characteristics of Two Acid Sulfate Soils by : Daud Bin Chinta
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:
Book Synopsis Sorption and Movement of Inorganic Phosphorus in Alfisol by : Otavio Antonio De Camargo
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:
Book Synopsis Phosphorus Sorption and Desorption in a Brazilian Ultisol by : Shinjiro Sato
Download or read book Phosphorus Sorption and Desorption in a Brazilian Ultisol written by Shinjiro Sato and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: This ageing process was due to a shaking artifact (30%), microbial immobilization (57%), and sorption of P onto the soil in a non-oxalate accessible form (13%). Liming and organic anion loading improved P bioavailability in this Brazilian soil. Long-term ageing and continuous exudation of organic anions also influence P bioavailability. Management options that recognize this will improve bioavailability of native and applied P sources in this important agricultural region of northeastern Brazil.
Book Synopsis Dynamics of Soil Organic Matter in Tropical Ecosystems by : David C. Coleman
Download or read book Dynamics of Soil Organic Matter in Tropical Ecosystems written by David C. Coleman and published by . This book was released on 1989 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constituents of organic matter in temperate and tropical soils. Soil organic matter as a source and a sink of plant nUtrients. Interactions of soil organic matter and variable-charge clays. Biological processes regulating organic matter dynamics in tropical soils.
Book Synopsis Availability of Inorganic Soil Phosphate as Measured by Plant Uptake and Adsorption by Anion Exchange Resin by : Paul Gerhardt Orth
Download or read book Availability of Inorganic Soil Phosphate as Measured by Plant Uptake and Adsorption by Anion Exchange Resin written by Paul Gerhardt Orth and published by . This book was released on 1959 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9789251055212 Total Pages :116 pages Book Rating :4.0/5 (552 download)
Book Synopsis Guidelines for Soil Description by : Food and Agriculture Organization of the United Nations
Download or read book Guidelines for Soil Description written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils are affected by human activities, such as industrial, municipal and agriculture, that often result in soil degradation and loss. In order to prevent soil degradation and to rehabilitate the potentials of degraded soils, reliable soil data are the most important prerequisites for the design of appropriate land-use systems and soil management practices as well as for a better understanding of the environment. The availability of reliable information on soil morphology and other characteristics obtained through examination and description of the soil in the field is essential, and the use of a common language is of prime importance. These guidelines, based on the latest internationally accepted systems and classifications, provide a complete procedure for soil description and for collecting field data. To help beginners, some explanatory notes are included as well as keys based on simple test and observations.--Publisher's description.
Book Synopsis The Role of Organic Matter in Modern Agriculture by : Y. Chen
Download or read book The Role of Organic Matter in Modern Agriculture written by Y. Chen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of organic residues as a means of maintaining and increasing soil fertility is of long-standing. This tradition has been somewhat neglected since the introduc tion of mineral fertilizers at low cost. More and more farmers and scientists are now showing renewed interest in the proper and effective use of org~tnic residues, composts and other recycled organic additives. The role and function of organic amendments in modern agricultural systems have become topics of major interest in the scientific and agricultural communities. Research work on residue disposal has provided new concepts on the interaction between organic components and soils as well as new handling technologies (e. g. pelletizing of organic residues). The trend to conserve energy has led scientists to study the minimal tillage system, to find ways of replacing conventional inorganic fertilizers with natural organic prod ucts or microbial preparations, and to develop new composting methods. The drive to achieve higher yields in commercial greenhouse farming has led to a search for optimum substrates as growth media and for improved management techniques. This has led to the introduction of organic substitutes for peat, nota bly those originating from agricultural wastes. Another important aspect is the current interest in organic farming, where use of synthetic chemicals is avoided or prohibited. An increasing percentage of the population in highly developed countries is willing to pay premium prices for food produced on soils where inorganic fertilizers and other agricultural chemicals have not been used.
Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 2012-12-31 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myriad of subject matter dealt with by this long-running serial Maintains the highest impact factor among serial publications in agriculture Presents timely reviews on important agronomy issues Enjoys a long-standing reputation for excellence in the field
Book Synopsis Chemical Processes in Soils by : M. A. Tabatabai
Download or read book Chemical Processes in Soils written by M. A. Tabatabai and published by . This book was released on 2005 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future by : Luke Gatiboni
Download or read book Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future written by Luke Gatiboni and published by Frontiers Media SA. This book was released on 2021-01-07 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Soil Organic Matter on Phosphorus and Oxalate Sorption and Desorption in a Spodoic Horizon by : Jagtar S. Bhatti
Download or read book Influence of Soil Organic Matter on Phosphorus and Oxalate Sorption and Desorption in a Spodoic Horizon written by Jagtar S. Bhatti and published by . This book was released on 1995 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phosphate in Soils by : H. Magdi Selim
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.
Book Synopsis Competitive Sorption Interactions of Organic and Inorganic Chemicals in Soil by : Sirajum Munira
Download or read book Competitive Sorption Interactions of Organic and Inorganic Chemicals in Soil written by Sirajum Munira and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural soils in the Prairies encompasses 80% of Canada's farmland that may contain a range of chemical compounds, including phosphate and cadmium from fertilizer application, glyphosate and MCPA from herbicide application and/or the antibiotic tetracycline following livestock manure application. The aim of this PhD research was to examine the competitive sorption effects of these inorganic and organic chemicals in soil. Soil samples were collected in 2013 from two research sites that had received repeated annual application (2002-2009) of mono ammonium phosphate at 20, 40 and 80 kg P ha-1 with cadmium added at low, medium or high rates. A series of batch equilibrium experiments were conducted to quantify sorption of phosphate, glyphosate, MCPA and tetracycline. Results showed that cadmium concentrations in soil had no significant effect on sorption of glyphosate. Sorption of glyphosate significantly decreased with increasing phosphate concentrations in soils regardless of whether phosphate levels arose from repeated applications in the field, or from fresh applications in the laboratory. Similarly, sorption of phosphate significantly decreased with increasing phosphate concentrations in soils, suggesting that the capacity of soils to retain phosphate or glyphosate was reduced resulting from previous (repeated) phosphate fertilizer applications. The effect of phosphate on reducing phosphate and glyphosate sorption was greater in an acidic soil that had high Fe/Al-oxides than in slightly alkaline calcareous soil. Analytical-grade glyphosate and commercially-available glyphosate formulation, Roundup Ultra2, behaved similarly for their sorption pattern. Phosphate sorption was not significantly impacted when Roundup Ultra2 was added to soil slurries in the laboratory. Repeated application of phosphate in the field had no significant impact on MCPA and tetracycline sorption, but fresh addition of phosphate in the laboratory significantly reduced MCPA and tetracycline sorption. Phosphate addition significantly increased desorption of glyphosate, MCPA and tetracycline but the impact was numerically very small. Thus, phosphate had a greater impact on sorption than desorption of the three organic chemicals. The presence of MCPA significantly reduced glyphosate sorption and increased desorption only when MCPA was added at high amounts and no phosphate was added. Overall, the competitive effect of phosphate on glyphosate sorption was strongest among the chemicals studied.
Book Synopsis Organic Phosphorus in the Environment by : Benjamin L. Turner
Download or read book Organic Phosphorus in the Environment written by Benjamin L. Turner and published by Cabi. This book was released on 2005 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Cycles of Soils by : F. J. Stevenson
Download or read book Cycles of Soils written by F. J. Stevenson and published by Wiley-Interscience. This book was released on 1986-01-17 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The carbon cycle. Carbon balance of the soil and role of organic matter in soil fertility. Environmental aspects of the soil carbon cycle. The nitrogen cycle in soil: global and ecological aspects. The international cycle of nitrogen in soil. Impact of nitrogen on health and the environment. The phosporus cycle. The sulfur cycle. The micronutrient cycle.
Book Synopsis Bioavailability of Contaminants in Soils and Sediments by : National Research Council
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
