Download or read book Soil Components written by J. E. Gieseking and published by Springer. This book was released on 1975-03-07 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Constituents of the Soil written by George Stronach Fraps and published by . This book was released on 1922 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Constituents of Soils written by United States. Department of Agriculture and published by . This book was released on 1912 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of Soil Analysis Part 3 written by D. L. Sparks and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough presentation of analytical methods for characterizing soil chemical properties and processes, Methods, Part 3 includes chapters on Fourier transform infrared, Raman, electron spin resonance, x-ray photoelectron, and x-ray absorption fine structure spectroscopies, and more.
Download or read book The Organic Constituents of Soils Classic Reprint written by Oswald Schreiner and published by Forgotten Books. This book was released on 2017-12-04 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Organic Constituents of Soils The soil is not simple, but complex. The soil properties and functions are likewise complex, not simple. All of the investigators preceding me in this symposium have emphasized to you by their papers how complex the subject is and how much remains to be done before a clear insight is Obtained, but they have also shown to you clearly that a well-trained army of scientists is at work on the prob lems connected with soil fertility, applying. Thereto all the principles of modern science. The Old view was simplicity itself; the soil was a mere trough in which the plant found its nourishment. But I can do no better than to let Liebig speak for himself. I quote from Letter XII of his Familiar Letters on Chemistry A field in which we cultivate the same plant for several successive years becomes barren for that plant in a period varying with the nature of the soil; in one field it will be three, in another seven, in a third twenty, in a fourth a hundred years. One field bears wheat and no peas; another beans and turnips but no tobacco; a third gives a plentiful crop of turnips but will not bear clover. What is the reason that a field loses its fertility for one plant, the same which at first flourished there? What is the reason one kind of plant succeeds in a field where another fails? About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Organic Constituents of the Soil written by Paul J. Cuenot and published by . This book was released on 1915 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Components written by J. E. Gieseking and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic substances returned to the soil by plants, animals and microorganisms go through biochemical cycles and subcycles that provide essential media for the growth of plants in the soil. These cycles involve numerous, complicated and interdependent chemical reactions. Many books have been written to describe the genesis, the nature and the reactions of soil organic matter and have contributed much to organizing parts of the knowledge about soil organic matter. Each book is an important contribution but none has duplicated any of the others to any great extent; each has developed essential bu.
Download or read book Organic Constituents of the Soil written by George Stronach Fraps and published by . This book was released on 1922 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Certain Organic Constituents of Soils in Relation to Soil Fertility Classic Reprint written by Oswald Schreiner and published by Forgotten Books. This book was released on 2018-09-09 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Certain Organic Constituents of Soils in Relation to Soil Fertility The work of isolating and studying the nature of such. Bodies is now in progress, but it is necessarily slow and difficult to accomplish. In the first place, the amount may be very small, and, secondly, the 'composition of the organic matter of the soil is undoubtedly very complex, being made up of many individual organic compounds. The absorptive power of the soil for organic bodies is so very great that the ordinary solvents, such as water, alcohol, chloroform, etc., take out but very minute amounts of organic material, .although this material may be quite soluble when not associated with the soil. The amounts of organic matter in ordinary soils is really. Appreciably large, the average content being as high as per cent for the soil and per cent for the subsoil, as found in thousands of sam ples from all parts of the United States, covering in all 237 types of soil. It Is obvious that this organic matter is of very complex com position, as its properties are quite different in soils from different localities. The amount of nitrogen also is considerable, as much as to per cent, and when we consider that only a small amount of this nitrogen is in the form of ammonium compounds or nitrate and that the larger amount is in organic form it is obvious that the problem Is a very complex one, but one of great agricultural importance. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Chemistry Of Soil Constituents written by D.J.Greenland and published by New India Publishing Agency. This book was released on 2016-07-21 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of this century production of chemical fertilizers has increased many fold, and the production of pesticides for addition to the soil has become a new major industry. These are not the only chemicals added to the soil, because by accident or design many other chemicals which enter the environment end up in the soil. The soil has to produce the bulk of the food and fiber to sustain this growing population. In this volume a short historical outline of the development of soil science is given, touching briefly on soil formation, soil physics, and soil biology, as it can be misleading to regard soils simply as chemical entities. It is also important to have some appreciation of the several processes which have produced the particular soil found at any one place. The major soil types of the world differ according to their origin. Several systems exist for classifying them, and different names are in use for the same major soil types. The most common names of these are therefore introduced. The following two chapters deal with the inorganic and organic components of soils respectively. The chemical structures of the major inorganic components are now reasonably well known, but this is not true of the organic (or humic) materials in soils. The relevant chapter presents an account of what has been experimentally established regarding the constitution of the peculiarly intractable complex of organic compounds found in soils. Chemical processes in soils are largely determined by reactions at the surfaces of the soil colloids. The final three chapters are therefore concerned with the nature and extent of the surfaces of soil colloids, their electrical characteristics, and the ways in which ions and water are held and arranged at the surfaces.
Download or read book Environmental Impacts of Soil Component Interactions written by P. M. Huang and published by CRC Press. This book was released on 1995-03-29 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: V. 1 - Natural and anthropogenic organics; v. 2 - Metals, other inorganics, and microbial activities. General soil quality as influenced by interactions of soil minerals with organics and microorganisms: Organic-inorganic interections in soils and their effects on soil quality; Sorption phenomena between inorganic and organic compounds in soils: impacts on transformation processes; Role of aluminium and iron in the accumulation of organic matter in soils with variable charge; Sorption of ions by soil organic matter and clay-organics at low ionic strength; Water potential, soil microhabitats, and microbial development; Effect of citric acid on interlayer adsorption of hydroxy-aluminosilicate ions by montmorillonite; Microbial oxidation of pyrites in relation to its efficiency in alkali soil reclamation; Modification of gelation properties of colloidal solids from oil sands: extraction impact on fine tailings formation; Position paper of part I; Transformations of natural and anthropogenic organic compounds as affected by soil minerals and microorganisms: Natural organics; Recent advances in organomineral interactions: implications for carbon cycling and soil structure; The role of short-range ordered mineral colloids in abiotic transformations of organics components in the environment; Influence of pyrogallol on the catalytic action of iron and managenese oxides in amino acid transformation; Photochemical effect on the abiotic transformations of polyphenolics as catalyzed by Mn(IV) oxide; Potential of the supercitical fluid extraction technique for characterizing organic-inorganic interactions in soils; Dissolution and fractionation of calcium-bound and iron-and aluminium-bound humus in soils; Rhe quality of soil organic matter as characterized by soil CPMAS C-NMR, and Py-FIMS; Extracellular polysaccharides: an interface between microorganisms and soil constituents; Low-molecular-weigh aliphatic carboxylic acids in some andisols of Japan; Relationship between organic acids and microorganisms on a kong-term cropping site in southeastern Australia; Effect of the addition of plant residues on the mineralization of sulfur in Costa Rican soils; Anthropogenic organics: Sorption and biodegradation of organic contaminants in soils: conceptual representations of process coupling; The role of dissolved metals and metal-containing surfaces in catalyzing the hydrolysis of organic pollutants; The role of abiotic and biotic catalysts in the transformation of phenolic compounds; The role of abiotic interections with humic substances on the environmental impact of organic pollutants; Adsorption mechanisms and abiotic catalytic transformations of some agrochemicals by clay minerals; Interactions between manganese oxides and multiple ringed aromatic compounds; Mobility and persistence of metolachlor and terbuthylazine in field lysimeters; Soil-pesticide interactions and their impact on the volatilization process; Factors affecting the movements, reactions, and biotransformations ox xenobiotics; Effect of soil minerals on the microbial formation of enzymes and their possible use in remediation of chemically polluted sites; Position paper of part II; Effect of microorganisms on mobility of heavy metals in soils; Interactions of copper with soil humic substances; Adsorption of phosphate on variable charge minerals: competitive effect of organic ligands; Cadmium adsorption on the hydroxyaluminum-montmorillonite complex as influencend by oxalate; Influence of citrate on selenite sorption-desorption on short-range ordered aluminum hydroxides; Role of amorphous fe oxides in controlling retention of heavy metal elements in soils; Effect of natural organic matter and pH on the bioavailability of metal ions in soils; Seasonal changes of organic matter, pH, nitrogen and some metals in forest topsoils in Austria: a case study of two soils with and whithout a litter layer; Substituion of rock phosphate and legumes for commercial fertilizers; Effect of single and combined inoculation with azotobacter and VA mycorrhizal fungi on growth and mineral nutrient contents of maize and wheat plants; Position paper of part I; Interactions of clays with microorganisms and bacterial survival in soil: a physicochemical perspective; Enumeration, survival, and beneficial activities of microorganisms introduced into soil; Effects of clay minerals, oxyhydroxides, and humic matter on microbial communities of soil, sediment, and water; Activity, stability, and kinetc properties of enzymes immobilized on clay minerals and organomineral complexes; Influence of site conditions and heavy metals on enzyme activities of forest topsoils; Aluminum toxicity: a major stress for microbes in the environment; Biological response to contamination with pentachlorophenol and mercuric chloride in a high organic matter soil; Ecology of 2,4-D degradation in three palouse silt loam soils.
Download or read book The Organic Constituents of Soils written by Osw Schreiner and published by . This book was released on 1913 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Organic Constituents of Soils written by Schreiner Oswald and published by Wentworth Press. This book was released on 2019-03-10 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Some Organic Soil Constituents Classic Reprint written by Edmund Cecil Shorey and published by Forgotten Books. This book was released on 2018-09-08 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Some Organic Soil Constituents A continuation of the investigation into the nature of the organic. Matter of soils, begun by the Bureau of Soils a few years ago-and reported in previous bulletins 1 has resulted in considerable additional information regarding the chemical identity of the compounds in this complex mixture. It is the purpose of the present bulletin to report the isolation of a number of organic compounds found in soil organic matter not included in previous publications of this laboratory. The methods by which these compounds have been isolated will be described, their properties noted, and their possible origin considered. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Origin Nature and Importance of Soil Organic Constituents Having Base Exchange Properties written by John Mitchell and published by . This book was released on 1932 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Organic Matter written by A. Raja Rajan and published by New India Publishing Agency. This book was released on 2023-04-13 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book dwells on soil organic matter in its entirety: the composition, distribution, pools and reactive functional groups of soil organic matter; its decomposition, nutrient transformations and biochemistry of humus formation; its role in pedogenic processes; adsorption of organic compounds by clay; clay-organic matter complexes; humus - trace metals and humus - pesticides interactions; environmental significance of humic substances and characterization of soil organic matter. The potentials of nuclear techniques in the study of soil organic matter have been elucidated for the benefit of research scholars. Various management practices for building organic matter in soils have also been discussed. A compilation of qualitative and quantitative analytical procedures on organic matter complements the book. The book will be a useful source material for researchers, scholars and all stakeholders concerned with soil organic matter and sustainable agriculture.
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.
