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Author: George Henry Failyer Publisher: Forgotten Books ISBN: 9780428217105 Category : Science Languages : en Pages : 44
Book Description
Excerpt from The Mineral Composition of Soil Particles Another matter of interest is the influence of the manner of the formation of the soil and of climate upon the distribution of the sev eral mineral nutrients. The past history of the soil greatly affects its mechanical and mineralogical composition. How it will affect the distribution of the plant-food constituents is not always obvious. For some time investigators have recognized that the groups of various sized particles ofa soil may differ in chemical composition. Considerable attention has been given to certain phases of the subject; but it has not as a whole received the detailed study that it deserves. Much of the analytical work that has been done upon the mechanical separates of soils has been by treatment with some conventional strength of hydrochloric acid. Such work is a study of solution and not of ultimate composition. 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.
Author: George Henry Failyer Publisher: Forgotten Books ISBN: 9780428217105 Category : Science Languages : en Pages : 44
Book Description
Excerpt from The Mineral Composition of Soil Particles Another matter of interest is the influence of the manner of the formation of the soil and of climate upon the distribution of the sev eral mineral nutrients. The past history of the soil greatly affects its mechanical and mineralogical composition. How it will affect the distribution of the plant-food constituents is not always obvious. For some time investigators have recognized that the groups of various sized particles ofa soil may differ in chemical composition. Considerable attention has been given to certain phases of the subject; but it has not as a whole received the detailed study that it deserves. Much of the analytical work that has been done upon the mechanical separates of soils has been by treatment with some conventional strength of hydrochloric acid. Such work is a study of solution and not of ultimate composition. 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.
Author: Wm T. McGeorge Publisher: Forgotten Books ISBN: 9780365588641 Category : Science Languages : en Pages : 20
Book Description
Excerpt from Composition of Hawaiian Soil Particles One of the primary characteristics of Hawaiian soils is the wide diversity of types which makes difficult their classification according to the usual methods employed in soil surveys. A wide variation in chemical composition, as well as in physical properties, is found within very Short distances. During a recent investigation in this laboratory upon the determination of humus, the character of the clay in Hawaiian soils, as regards certain of its properties, was found to be radically different from that in mainland soils. Chief among these abnormal properties is the incomplete coagulation when coag ulants are added. This is especially true in case of addition of ammonium carbonate, which has been successfully used on mainland soils for the coagulation of clay in humus extracts. This peculiarity of the clay has led to a study of the composition of the coagulable and noncoagulable grains and a further investiga tion upon the composition of the clay, fine silt, silt, fine sand, and coarse sand separates in the important Hawaiian types of soil differ ing in color, chemical composition, and physical properties. 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.
Author: John Dewey Axtell Publisher: Forgotten Books ISBN: 9780365561767 Category : Science Languages : en Pages : 44
Book Description
Excerpt from Hygroscopicity of Mineral Soil Particles as Affected by Size of Particle and Adsorbed Cations Pormt sulfuric acid by magnum; prepared soil canola. Varied grunt]; pending am the W or material new. 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.
Author: W. J. McCaughey Publisher: Forgotten Books ISBN: 9780428374112 Category : Science Languages : en Pages : 116
Book Description
Excerpt from The Microscopic Determination of Soil-Forming Minerals Soils are largely the result of certain natural processes, physical, chemical, and biological, upon rock and rock materials. Consa quently the greater part of the soil is made up of mineral fragments coming from the original rock components and to some extent of decomposition and alteration products derived from the degradation products.-1 It is obvious that to understand the properties of a soil, and especially those properties which are dependent upon origin, mode of formation, and composition, the minerals of the soil must be known. Much attention has been given the mechanical composition of the Soil and its consequent physical properties; the chemical com position, organic as well as inorganic; and the biological composition, especially in recent years. But little attention has been given the mineralogical composition, and that in spite of the great advances in mineralogical technique, especially along optical lines incident to rapid development of petrographical and geological investigations. 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.
Author: Frank Kenneth Cameron Publisher: Forgotten Books ISBN: 9780483096738 Category : Science Languages : en Pages : 78
Book Description
Excerpt from The Mineral Constituents of the Soil Solution Of no less importance are the organic constituents of the soil solution, but these will not be considered in the present bulletin, except incidentally as they affect the mineral constituents. 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.
Author: Charles Cloyes Fletcher Publisher: Forgotten Books ISBN: 9781527774421 Category : Languages : en Pages : 32
Book Description
Excerpt from Modification of the Method of Mechanical Soil Analysis The mechanical analysis of the soil, as carried out in the Bureau of Soils, has been devised as an expedient method of obtaining a quantitative statement for the classification of soils on a physical basis. There exists a close relationship between the mechanical com position and most of the physical' properties of soils, although the exact nature of the relationship is not. Yet. Satisfactorily known. Many attempts have been made to classify soils upon the basis of some physical property, but to measure any physical property of soils without regard to the mechanical composition would disregard those relations of most importance in the practical management of soils. The physical properties of a soil are dependent upon the structure of the soil as well as upon the mechanical composition. The organic matter present influences both composition and structure. Hence we have a number of dependent variables of whose relations. To one another we yet know very little. But the mechanical composition of any particular soil remains reasonably constant, so that, it has been adopted as a basis for classification until the relationship ex isting between mechanical composition and the physical properties of the soil have become better known. The classification of soils on this basis is of agricultural value, as certain obvious characteristics attach to clays, loams, sands, ietc., as classes. In the mechanical analysis the soil is divided into a number of different grades of particles, whose dimensions lie between definite limits, and the percentage by weight of each of these grades is de termined. In general, the basic methods used in mechanical analysis are separation of different size particles by sifting in the case of the larger particles, and by sedimentation (usually in water) in case of the smaller ones. Various successful modifications have been devised, based on these methods. 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.
Author: Edgar T. Wherry Publisher: Forgotten Books ISBN: 9780331277708 Category : Science Languages : en Pages : 22
Book Description
Excerpt from Soil Acidity The amount of hydrogen-ion present in a solution, expressed as gram equivalents per liter, is often referred to as the hydrogen-ion concentration. The water existing in soils, as a film around the solid soil particles, does not dier essentially from, free water in the above respects. Substances can dissolve in it, undergo ionization, and give rise to a definite hydrogen-ion concentration of the soil. 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.
Author: George Henry Failyer
Author: George Henry Failyer
Author: United States. Department of Agriculture
Author: George H. Failyer
Author: H. R. Wade
Author: Wm T. McGeorge
Author: John Dewey Axtell
Author: W. J. McCaughey
Author: Frank Kenneth Cameron
Author: Charles Cloyes Fletcher
Author: Edgar T. Wherry