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Author: Fred G. Merkle Publisher: Forgotten Books ISBN: 9780428570491 Category : Science Languages : en Pages : 42
Book Description
Excerpt from The Decomposition of Organic Matter in Soils To show that soils do actually take on carbon by absorption the results of Lsmmsrmsn) my be cited. As allowed a kilogram of soil to incubate for s period of eight weeks. The total carbon was determined at the beginning and end of this period and an increase of grams was observed in one instance and grams in another. 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: Fred G. Merkle Publisher: Forgotten Books ISBN: 9780428570491 Category : Science Languages : en Pages : 42
Book Description
Excerpt from The Decomposition of Organic Matter in Soils To show that soils do actually take on carbon by absorption the results of Lsmmsrmsn) my be cited. As allowed a kilogram of soil to incubate for s period of eight weeks. The total carbon was determined at the beginning and end of this period and an increase of grams was observed in one instance and grams in another. 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: Arthur John Berry Publisher: CUP Archive ISBN: Category : Science Languages : en Pages : 168
Book Description
Excerpt from The Atmosphere The author desires to thank Professor Seward for his kind editorial help. To Dr G. F. O. Searle and to the late Mr H. 0. Jones he is indebted for many valuable criticismsand suggestions. 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: Forgotten Books ISBN: 9780260435538 Category : Science Languages : en Pages : 60
Book Description
Excerpt from Chemical Nature of Soil Organic Matter Every soil investigator, whether it be the chemist, bacteriologist, or physicist studying some special problem, or the agronomist dealing with the general relation of soils to crops, sooner or later encounters difficulties that have their origin in the lack of knowledge of the chemical composition of the organic matter of the soil. Some organic matter is essential to make a soil of what would otherwise be pulverized and more or less hydrolyzed rock, and while there are some soils capable of growing crops that contain very small quantities of organic matter, on the whole the quantity of this material in average soils is considerable. Analyses have shown that the average organic content of the soils of the United States is per Cent and of subsoils per cent. This means 28 tons Of organic matter per acre in the first 8 inches of soil and 50 tons in the soil and subsoil together to the depth of 2 feet. 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. P. Kelley Publisher: Forgotten Books ISBN: 9780260687517 Category : Science Languages : en Pages : 32
Book Description
Excerpt from The Biochemical Decomposition of Nitrogenous Substances in Soils From previous work in this laboratory 2 it has been shown that Hawaiian soils contain relatively greater amounts of amid and smaller amounts of basic (diamino acid) nitrogen than the vegetable proteins. From this it has been Sliggested that a study of the group Changes produced under the action of, bacteria might throw important light on both the availability of, and the nature of bacterial action on, nitrogenous fertilizers. Various factors, such as the degree of aeration, the acidity of the medium, the carbohydrates present, the synthesis of proteins in the body cells of the bacteria, the absorption of organic nitrogen compounds in varying degrees by plants, etc. SO complicate'the problem as to render very difficult an interpretation of 'the chemistry of bacterial action in soils. It has been Suggested, however, that by also studying the rates of decomposition under varying conditions some light might be thrown on this question. 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: Edmund Cecil Shorey Publisher: Forgotten Books ISBN: 9781390519891 Category : Science Languages : en Pages : 56
Book Description
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.
Author: Fred Albert Carlson Publisher: ISBN: 9781332197866 Category : Business & Economics Languages : en Pages : 32
Book Description
Excerpt from Some Relations of Organic, Matter in Soils: A Thesis Presented to the Faculty of the Graduate School of Cornell University for the Degree of Doctor of Philosophy The effect of lime on the organic matter in soils has been for some time one of the leading problems for investigation. The results that have been recorded, however, are not consistent. Some investigators have reported that there is a greater accumulation of organic matter in limed than in unlimed soil, while others have stated the contrary. This difference of opinion is not surprising when the methods of experimentation, the soil variations, and the climatic conditions are considered. There has been, however, too great a tendency to draw conclusions from unreliable data. In many cases, attempts have been made to study the effect of lime on the organic matter in soils without a knowledge of the composition of the soils before treatment. In view of the many discrepancies in the reported results. the present experiment was designed to ascertain the effect of lime on the organic matter in soils under various treatments and cropping systems. Historical Wheeler and others(1899) reported that lime decreased the percentage of humus in soils under continuous culture of cereals. They found also that there was an increase of roots and residual organic matter in limed grass plats as compared to those not limed. Hess (1901) studied the effect of lime on some of the Pennsylvania soils. He stated that liming resulted in a diminution of the nitrogen. Kossovich and Tretjakov (1902)stated that the addition of calcium carbonate to soil retarded the decomposition of organic matter. Hartwell and Kellogg(1906) pointed out that the amount of humus in limed plats was less than that in unlimed plats. They stated also that the effect produced by lime upon the organic matter of a given soil was dependable to a considerable extent on the degree of acidity or of alkalinity 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: Fred G. Merkle
Author: Fred G. Merkle
Author: Dewey D. Shaw
Author: Arthur John Berry
Author: Oswald Schreiner
Author: M. S. Du Toit
Author: W. P. Kelley
Author: D. J. Boatman
Author: Edmund Cecil Shorey
Author: William S. Albrecht
Author: Fred Albert Carlson