The Color of Soils (Classic Reprint) PDF Download
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Author: William Orrin Robinson
Publisher: Forgotten Books
ISBN: 9780364294178
Category : Science
Languages : en
Pages : 38
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Book Description
Excerpt from The Color of Soils The color of soils has long occupied the attention of both geologists and agriculturists and has considerable importance theoretically and practically. Theoretically the color is of importance as a guide to the origin and processes involved in the formation of the soil and as an indication of the relative age of any particular soil. It is of practical importance because it determines to a greater or less extent the absorption of the sun's energy, and is often a guide to the drainage conditions, to the crop adaptations, and to the cultural methods best suited to the soil. It is the object of this bulletin to publish the results of an investiga tion-into the causes of certain colors in soils, and particularly the causes of differences in color between the popularly named red and' yellow soils in connection with the agricultural significance of Such differences. In, addition to this, certain of the chemical and physical properties of iron compounds and their solutions will be considered It must be recognized that soil colors are not pure colors, but at best are Shades and tints. Thus the material by which soils ordinarily considered red are colored is ferric ox1de, which itself is never a pure red, for it varies from dark brown to yellowish, and when in the soil it is further tinted and Shaded by other materials. When applied to soils the color descriptions used in this bulletin mean the tints and shades which for the sake of Simplicity are termed red, yellow, brown black, or Simple combinations of these. 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: William Orrin Robinson
Publisher: Forgotten Books
ISBN: 9780364294178
Category : Science
Languages : en
Pages : 38
Get Book Here
Book Description
Excerpt from The Color of Soils The color of soils has long occupied the attention of both geologists and agriculturists and has considerable importance theoretically and practically. Theoretically the color is of importance as a guide to the origin and processes involved in the formation of the soil and as an indication of the relative age of any particular soil. It is of practical importance because it determines to a greater or less extent the absorption of the sun's energy, and is often a guide to the drainage conditions, to the crop adaptations, and to the cultural methods best suited to the soil. It is the object of this bulletin to publish the results of an investiga tion-into the causes of certain colors in soils, and particularly the causes of differences in color between the popularly named red and' yellow soils in connection with the agricultural significance of Such differences. In, addition to this, certain of the chemical and physical properties of iron compounds and their solutions will be considered It must be recognized that soil colors are not pure colors, but at best are Shades and tints. Thus the material by which soils ordinarily considered red are colored is ferric ox1de, which itself is never a pure red, for it varies from dark brown to yellowish, and when in the soil it is further tinted and Shaded by other materials. When applied to soils the color descriptions used in this bulletin mean the tints and shades which for the sake of Simplicity are termed red, yellow, brown black, or Simple combinations of these. 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: H. E. Annett
Publisher: Forgotten Books
ISBN: 9780666611406
Category : Science
Languages : en
Pages : 26
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Book Description
Excerpt from The Nature of the Colour of Black Cotton Soil The black cotton soil of India covers an area of at least sq. Miles and ranks as the second most important of our Indian soils. On it by far the largest proportion of our Indian cotton crop is grown. The origin of the soil and the cause of its dark colour have long been matters of discussion. 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: Curtis F. Marbut
Publisher:
ISBN: 9781332891917
Category : Science
Languages : en
Pages : 828
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Book Description
Excerpt from Soils of the United States (Edition, 1913) The soil unit or the soil individual is the soil type. It connotes all the features named above and is limited to a single class, a single series, and a single province. A soil type, therefore, is a soil w ich throughout the area of its occurrence has the same texture, color, structure, character of subsoil, general topography, procca of derivation, and usually derivation from the same material. 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: T. L. Lyon
Publisher: Forgotten Books
ISBN: 9780266616214
Category : Business & Economics
Languages : en
Pages : 604
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Book Description
Excerpt from The Nature and Properties of Soils: A College d104 of Edaphology In the light of its origin and function the soil may be defined as a mixture of broken and weathered fragments of rock and decaying organic matter, which covers the earth in a thin layer and supplies mechanical support and in part sustenance to plants. 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: Clifford Gore Browne Wyatt. Chambers
Publisher: CUP Archive
ISBN:
Category : Social Science
Languages : en
Pages : 222
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Book Description
Excerpt from Bedfordshire Of Dunstable; as regards the former he often dwelt on its continuous connection with Bedford, from the earliest days of which the Anglo - Saxon Chronicle has. 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: William Fream
Publisher:
ISBN: 9781332953493
Category : Science
Languages : en
Pages : 194
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Book Description
Excerpt from Soils and Their Properties The recognition of the work done by micro-organisms marks a most important advance in our knowledge of the phenomena involved in the metabolism (gr. Metabole, change) of the' soil. Hitherto, investigation has been directed rather to the determination of the immediate effects of soil metabolism in pro'moting the nutrition of plants. But it is at least possible that the biological fac tors in metabolic activity may eventually be proved to be not less potent than the physical and chemical agents in effecting the disintegration of rocks, and thus in restoring to the soil those mineral ingredients which are undergoing incessant loss. Our knowledge of the biology of the soil is hardly yet in a sufficiently settled condition to be made the subject of an elementary manual. All that is attempted, there fore, In 'the following pages is to trace soils back to their parent rocks, to indicate some of their more important physical and chemical properties, and to give a brief account of the distribution Of soils within the British Isles. It is proposed to follow this Volume with another, in the same series, upon the practical management 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: University of Illinois at Urban Station
Publisher: Forgotten Books
ISBN: 9780265167588
Category : Business & Economics
Languages : en
Pages : 534
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Book Description
Excerpt from Soil Report, 1918 About two-thirds of Illinois lies in the corn belt, where most of the prairie lands are black or dark brown in color. In the southern third of the state, the prairie soils are largely of'a gray color. This region is better known as the wheat belt, altho Wheat 13 Often grown in the corn belt and corn is also a common crop in the wheat belt. 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: Robert M. Salter
Publisher: Forgotten Books
ISBN: 9780484615693
Category : Business & Economics
Languages : en
Pages : 42
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Book Description
Excerpt from Analyses of West Virginia Soils: Second Report In each province there are several soil series. A soil series is a group of soils having the same range in color, the same character of subsoil as regards color and structure, the same relief and drainage and a common or similar origin. 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:
Publisher: Forgotten Books
ISBN:
Category : Science
Languages : en
Pages : 424
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Book Description
Excerpt from Edinburgh New Philosophical Journal, 1857, Vol. 5 Correlation of the Triassic Rocks in the Vale of Worcester, and at the Malvern Tunnel. By the Rev. W. S symonds. 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: Oswald Schreiner
Publisher:
ISBN: 9781332273539
Category : Business & Economics
Languages : en
Pages : 24
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Book Description
Excerpt from The Organic Constituents of Soils The reports on the various phases of soil studies by the investigators who have preceded me in this symposium must have impressed you with the fact that the subject of soil fertility and infertility is by no means a simple matter of arithmetic, which involves only a few of the mineral constituents of the soil. It must also have become clear to you that the problem of soil fertility or infertility has not been solved by the application of these simple arithmetical means based on soil analysis or by the crop statistics accumulated in the years which have elapsed since Liebig first announced his views on soil fertility, which gamed for him for all time the title of "Father of Agricultural Chemistry." It is particularly gratifying to me, since I am to talk to you to-day on the subject of the organic constituents of soils, their chemical nature and other properties, that Liebig is also known as the "Father of Organic Chemistry." To what tremendous proportions and significance in the worlds industries and science this child of his (Organic Chemistry) has grown is familiar to all of you, and I assure you that Liebig, were he to return to-day, would be proud of its parentage. But I fear he would be displeased with his other child, as having made so little progress in the intervening years, although he started it in life strong and virile and full of promise. Up to a few years ago agriculture had not shared in the great impulses which modern science has given to other arts and industries, and the domination of the mineral-requirement theory proposed in the first half of the last century and accepted without adequate proof of its validity is largely responsible for the lack of development in agriculture, commensurate with the enormous strides of other arts and industries under the guidance of modern scientific thought and research. But a new era of scientific inquiry is at hand, and all phases of scientific endeavor are being applied to the solution of the problems connected with soil fertility and infertility - lines of endeavor which were not even known in Liebig's time, but which to-day are well-recognized factors in soil fertility. 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.
