Download or read book Studies in Soil Moisture Vol 1 Classic Reprint written by Bernard Howell Wilsdon and published by Forgotten Books. This book was released on 2018-01-12 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Studies in Soil Moisture, Vol. 1 The appearance recently of a paper by B. A. Keen (j. A. Se, Vol. X, 44, which gives an admirable resume of the work so far published on the mportant subject of soil moisture, has caused me to consider it advisable to give a preliminary account of the lines of work on this subject which have been developed at Lyallpur since 1917. It is probably unnecessary to refer here to the overwhelming insistence of the demand in a Punjab irrigation colony for research into the problems presented by the agriculture of such tracts, which involve the elucidation of the factors controlling the movement of moisture in the soil. That any investigation into these problems involves an attack from many directions is obvious when the complexity of the subject is considered. But to wait for the final convergence of a series of independent lines of investiga tion unduly postpones the publication of ideas and results which may be of use to workers in the subject and which may interest others who may give assistance. I therefore make no apology for the fact that much of the work described hereinafter is at present very incomplete beyond the statement that I hope at not far distant dates to continue this paper in a series of parts, describing in detail the work which has been performed in each division of the subject. 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 Studies on the Movement of Soil Moisture Classic Reprint written by Edgar Buckingham and published by Forgotten Books. This book was released on 2017-10-27 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Studies on the Movement of Soil Moisture It is clearly recognized that the analogy is imperfect in that the capillary potential and resistance to flow are dependent upon the moisture content of the soil, whereas electrical and thermal resistance are practically independent of the amount of current and heat passmg. Nevertheless this point of view and method of attacking the problem promise to become very helpful, and are believed to be a distinct advance In the treatment of a subject which has hitherto suffered on account of serio'us experimental difficulties and the lack of a coherent guiding theory. 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 A Progress Report on the Development of Methods for Predicting Soil Moisture Content Vol 1 Classic Reprint written by E. J. Dortignac and published by Forgotten Books. This book was released on 2018-05-14 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Progress Report on the Development of Methods for Predicting Soil Moisture Content, Vol. 1 On the basis of recent research in the Department of Agriculture, particularly the Forest Service, certain basic concepts concerning soil moisture changes have developed.( 8 A thorough knowledge of these fundamental relations is necessary for an understanding of prediction methods described in this report as well as for proper evaluation of results and their applicability to other areas. 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 Mechanics of Soil Moisture Classic Reprint written by Lyman J. Briggs and published by Forgotten Books. This book was released on 2017-10-28 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Mechanics of Soil Moisture It is intended in this bulletin to present the application of certain dynamical principles to the problems attending the movement and retention of soil moisture. Among these problems may be mentioned the capacity of a soil for water, the adjustment of water between a dry and a wet soil, the relation of texture, structure, and temperature to the water capacity, and the effect of fertilizers upon the water content of a 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.
Download or read book Soil Moisture Constants and Their Variation Classic Reprint written by Walter M. Broadfoot and published by Forgotten Books. This book was released on 2018-03-18 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil-Moisture Constants and Their Variation This paper summarizes the data gathered in the library and the field. The authors believe that it may be a useful reference for other researchers. For students, it may illustrate the fact that soil-moisture constants, far from being fixed, vary considerably with the physical condition of the soil. Some explanation is due of the procedure followed in compiling the information, together with some precautions as to its use. The data are from 901 samples of surface soil and 400 samples of subsoil. Data from published sources were combined with those obtained in studies at the Vicksburg Research Center. 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 Methods of Soil Moisture Determination Under Field Conditions Classic Reprint written by David F. Olson Jr and published by Forgotten Books. This book was released on 2017-10-27 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Methods of Soil Moisture Determination Under Field Conditions The determination of soil moisture under field conditions is of vital importance to the agronomist, forester, hydrologist, and engineer. Those dealing in the plant sciences are primarily interested in the amount of water that is available to plants under various environmental conditions; the hydrologist and engineer are also concerned with soil moisture existing in the range above the field capacity and below the permanent wilting percentage. Continuous soil moisture measurement is necessary for full understanding of the nature of soil moisture move ment, but limited studies of soil moisture are often needed as well. 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 Soil Moisture and Crop Production Classic Reprint written by Elmer O. Fippin and published by Forgotten Books. This book was released on 2018-02-14 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture and Crop Production The correction for this consists in creating a granular, or flocculated, condition Of the soil, so that a number Of small particles act together like a single larger particle. Granulation is important. The most effective size of granule ranges from the size Of corn kernels to that Of timothy seed. Inevitably there will be considerable finer material, SO that the mass will have a loamy structure. By loosening the soil, Opportunity is given for the maximum thickness of films and the largest proportion Of available water. 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 Soil Moisture Evaluation Classic Reprint written by Marlowe D. Thorne and published by Forgotten Books. This book was released on 2017-12-11 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture Evaluation Figure II shows the release curves for these same three soils, but plotted with moisture content expressed as percents available moisture (held at tensions between 15 atmospheres and atmosphere). If we look at the tensions corresponding to 50 percent available moisture for the three soils, we find that for the clay it is h.5 atmospheres; for the 10mm 2 atmospheres, and for the sand atmos pherae. This information is arranged in Table I for various available moisture percentages. 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 Soil Moisture written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2017-12-14 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture: A Record of the Amount of Water Contained in Soils During the Month of June, 1895 The records showing the conditions in the West are all commented upon directly under the diagrams. AS a rule, during th1s favorable season the fields under ordinary cultivation and those which had been subsoiled and subsequently cultivated do not Show very different mois ture conditions. In some places the-effect of cultivation is not appar ent upon the moisture content of Soils. For reasons which have already been, given it is not to be expected that cultivation would Show a very marked effect upon the amount of. Moisture in the soil either in a very dry season or in a very favorable sea-son with frequent rains. The time when it would have its maximum effect would be after a wet season and when a dry period was coming on. The moisture content at this time should fall much more gradually in the cultivated than in the uncultivated land. This is shown to a slight extent in some of the records, but not to such an extent as would seem likely to occur under the most intelligent Cultivation of the soil. The small amount of data which has been collected is not sufficient, however, to warrant a close and final judgment in this matter. 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 Soil Moisture As Affected by Stand Conditions Classic Reprint written by Ralph C. Moyle and published by Forgotten Books. This book was released on 2017-11-11 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture as Affected by Stand Conditions Figure 1. -the all-aged loblolly-shortleaf pine area.and southern red oak, of all sizes up to about 20 to 30 feet in height and 8 inches (1. B. H. Other oaks, dogwood, hawthorn, and vaccinium species are also present. 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 Moisture Content and Physical Condition of Soils Classic Reprint written by Frank K. Cameron and published by Forgotten Books. This book was released on 2017-10-27 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Moisture Content and Physical Condition of Soils Another point which this investigation has brought out in a strik ing way is the hysteresis observable in the volume change when a soil is alternately wetted and dried out. This process results in a natural packing of the soil and is seriously detrimental to the mainte nance, of good tilth if the extremes of moisture content reached are wide apart. The causes for and mechanism of this process have been made clear by the experiments here recorded. 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 Soil Moisture written by Milton Whitney and published by Forgotten Books. This book was released on 2019-01-25 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture: A Record of the Amount of Water Contained in Soils During the Crop Season of 1896 The record of moisture conditions in a number of types of soil is given in the tables, while the kind of soil and the character of the sea son are briefly described in the following paragraphs. 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 Forests Handbook Volume 1 written by Julian Evans and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future of the world's forests is at the forefront of environmental debate. Rising concerns over the effects of deforestation and climate change are highlighting the need both to conserve and manage existing forests and woodland through sustainable forestry practices. The Forests Handbook, written by an international team of both scientists and practitioners, presents an integrated approach to forests and forestry, applying our present understanding of forest science to management practices, as a basis for achieving sustainability. Volume One presents an overview of the world's forests; their locations and what they are like, the science of how they operate as complex ecosystems and how they interact with their environment. Volume Two applies this science to reality; it focuses on forestry interventions and their impact, the principles governing how to protect forests and on how we can better harness the enormous benefits forests offer. Case studies are drawn from several different countries and are used to illustrate the key points. Development specialists, forest managers and those involved with land and land-use will find this handbook a valuable and comprehensive overview of forest science and forestry practice. Researchers and students of forestry, biology, ecology and geography will find it equally accessible and useful.
Download or read book The Moisture Equivalents of Soils Classic Reprint written by Lyman James Briggs and published by Forgotten Books. This book was released on 2017-10-28 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Moisture Equivalents of Soils It is important in the comparative study of soils that the mechan ical composition, which forms the basis of most comparisons of this kind, shall be supplemented by the quantitative measurement of other characteristics, such as the moisture retentivity and the rate of capillary movement of water under standard conditions. 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 Soil Moisture Measurement With the Neutron Method Classic Reprint written by Cornelius H. M. van Bavel and published by Forgotten Books. This book was released on 2018-09-15 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture Measurement With the Neutron Method Millicurie A quantity unit of radioactive material equivalent to 3. 7 x 107 disintegrations per second. Milliroentgen A unit of ionizing radiative energy; one thousandth of a roentgen. 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 Capillary Movement of Soil Moisture Classic Reprint written by Walter W. McLaughlin and published by Forgotten Books. This book was released on 2017-10-13 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Capillary Movement of Soil Moisture As a basis for answering some of the above questions investiga tions were undertaken in 1915, and the data given below are in the form of a progress report. 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 Soil Moisture A Record of the Amount of Water Contained in Soils During the Month of May 1895 Classic Reprint written by U. S. Division Of Agricultural Soils and published by Forgotten Books. This book was released on 2018-02-08 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture: A Record of the Amount of Water Contained in Soils During the Month of May, 1895 Sir: I have the honor to transmit herewith a report upon the amount of water contained in some important types of soil in different portions of the United States. The marked effect of different amounts of rain upon the yield and quantity Of crops is familiar to all in the everyday experience of farmers. It will be seen from these records that, owing to the difference in the texture of soils, even with the same amount of rainfall, soils retain very different amounts of water. As crops require very different conditions of water for their best development, this dif ference in the water content of soils very largely accounts for the peculiar adaptation of certain soils -to certain classes of crops. A good truck soil in a favorable season will contain about 5 per cent, or one twentieth of its weight, of water; and grass land, on the other hand, should contain 20 per cent, or one-fifth of its weight, of water; These are characteristic differences due to the peculiar texture of these lands and their relation to water. The actual amount of water contained in the soil determines the character of the season, the actual amount of rainfall being no reliable measure of this. These records show the actual conditions of moisture available to plants in these soils. It is not possible at present to draw reliable deductions from these records until more data is collected, and they are therefore given for the present with little comment. 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.
