Download or read book Base Saturation and PH in Relation to Soil Type written by Adolf Mehlich and published by . This book was released on 1941 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Factors Affecting the PH base Saturation Correlation in Soils written by Elmo Lyman Dinkins and published by . This book was released on 1967 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Relationship Between PH Exchangeable Calcium Percent Base Saturation and Lime Requirement in Some Michigan Soils written by Neil F. Shimp and published by . This book was released on 1951 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Significance of Percentage Base Saturation and PH in Relation to Soil Differences written by Adolf Mehlich and published by . This book was released on 1942 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Base Saturation and PH in Relation to Liming and Nutrient Conservation of Soil written by Adolf Mehlich and published by . This book was released on 1942 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils as a Key Component of the Critical Zone 5 written by Christian Valentin and published by John Wiley & Sons. This book was released on 2019-02-06 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: One third of the world's soils have already been degraded. The burden on the land continues to grow under the combined pressures of demography, urbanization, artificialization and mining, and there are increased demands on agricultural land: changing dietary preferences, land speculation, as well as new demands for agroenergy, fiber, green chemistry, and more. Resulting issues such as soil crusting, water and wind erosion, soil salinization and soil acidity therefore constitute a major threat. The authors of this book present the main processes and factors of soil degradation, different ways to prevent it and methods of rehabilitation. The book also deals with the origin and processes of metallic and organic soil pollution as well as methods of phytoremediation and restoration. It is one of the few books to explore the issue of soil artificialization and urban soil management and to highlight how agricultural and urban waste can be used to amend and fertilize cultivated soils.
Download or read book Encyclopedia of Soil Science written by Ward Chesworth and published by Springer Science & Business Media. This book was released on 2007-11-22 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Soil Science provides a comprehensive, alphabetical treatment of basic soil science in a single volume. It constitutes a wide ranging and authorative collection of some 160 academic articles covering the salient aspects of soil physics, chemistry, biology, fertility, technology, genesis, morphology, classification and geomorphology. With increased usage of soil for world food production, building materials, and waste repositories, demand has grown for a better global understanding of soil and its processes. longer articles by leading authorities from around the world are supplemented by some 430 definitions of common terms in soil sciences.
Download or read book The Relationship Between Cation Exchange Capacity Total Bases and Exchange Acidity in Certain Oregon Soils written by Clara Ju-Yuan Lin and published by . This book was released on 1957 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two soils representative of the coast and three representing the Willamette Valley have been studied for their general chemical characteristics. Exchange capacity and exchangeable cations were determined by the ammonium acetate and the BaCl2-triethanolamine buffer methods. Exchange capacity was also obtained from conductimetric titrations which were run on each soil before and after destroying the organic matter. Potentiometric titrations were run before and after leaching each soil with HCl. Lime requirement was determined by Woodruff's method and also obtained from the pH-lime curves. The two coastal soils, Astoria and Clatsop, have lower pH and base saturation and higher organic matter content and exchange capacity than the Melbourne, Olympic, and Willamette soils from the valley. The Melbourne soil had the highest base saturation percentage and Astoria had the lowest. The amount of exchangeable aluminum was also higher in the coastal soils. The amount of exchange capacity contributed to the organic fraction was 65 per cent in the Olympic and Willamette soils and 50 per cent in the other three. The value for exchange capacity by the different methods was in good agreement in the three valley soils before and after the organic matter was destroyed. In the coastal soils there was no agreement between methods in any case. This would indicate that in the latter two soils, type of clay mineral present may be more of an influence than in the former soils. The potentiometric titration curves showed that the two coastal soils were well buffered and the valley soils were only slightly buffered. After the soils were leached with HCl the Melbourne soil was the only one which indicated a strong acid property. The exchange properties of the soils as affected by additions of lime were studied by incubating the soils for four weeks with added increments of lime. With each added increment of lime the pH increased and exchangeable acidity decreased in each soil. The amount of lime to bring the soils to any given degree of base saturation appeared to be proportional to the magnitude of the exchange capacity and inversely proportional to the degree of base saturation. At any given pH value there was a considerable difference in the degree of base saturation for these soils. This might well be a reflection of the type of minerals present in the different soils. More lime was required to bring the two coastal soils up to pH 6.5 as indicated by the pH-lime relationship curve than that estimated by the Woodruff method. Consistent results were observed in the three valley soils. This suggests that the buffer solution at pH 7 as recommended by Woodruff was not strong enough to neutralize the acidity in the coastal soils. There was good agreement between the two methods in the determination of the exchangeable bases. The BaCl2-buffer method gave much higher values of exchangeable acidity than did the ammonium acetate method. These values, when converted to tons of calcium carbonate, agree fairly closely with the amount of lime required to bring the soils to pH 7 when added directly to the soil. When lime was added above the saturation point the amount of exchangeable calcium as determined by the ammonium acetate method increased but remained relatively constant for the BaCl2-buffer method. The various analysis seem to indicate that the Astoria and Clatsop soils contain predominantly 2:1 type clay minerals while the Olympic and Willamette soils contain predominantly the 1:1 type. The Melbourne soil exhibits properties more closely associated with the coastal soils.
Download or read book Soil Survey Investigations Report written by and published by . This book was released on 1966 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Soil Science written by Bernard P. K. Yerima and published by Trafford Publishing. This book was released on 2005 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: A basic and applied textbook, ideal for students.
Download or read book Ecology and Management of Forest Soils written by Dan Binkley and published by John Wiley & Sons. This book was released on 2019-03-20 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contemporary soil science and conservation methods of effective forestry Forests and the soils that serve as their foundation cover almost a third of the world’s land area. Soils influenced by forest cover have different properties than soils cultivated for agricultural use. Ecology and Management of Forest Soils provides a clear and comprehensive overview of the composition, structure, processes, and management of the largest terrestrial ecosystem. From composition and biogeochemistry to dynamics and management, this essential text enables readers to understand the vital components of sustainable, long-term forest soil fertility. The interaction of trees, animals, microbes, and vegetation alter the biology and chemistry of forest soils—these dynamics are also subject to human management, requiring conservationists to be conversant in the philosophy and methods of soil science. Now in its fifth edition, this classic text includes new coverage of uptake of organic nitrogen in forests, 15N retention studies, the effects of N additions on C accumulation, evidence-based examples of the dynamics of soils, and more. Extensive updates and revisions to topics such as spatial implications of megafires, long‐term organic matter accumulation, soil characterization, and molecular soil measurement techniques reflect contemporary research and practices in the field. This informative overview of forest soils integrates clear and accurate descriptions of central concepts and logically organized chapters to provide readers with foundational knowledge of major soil features, processes, measurement techniques, and management methods. This authoritative survey of the management and ecology of forest soils: Offers full-color photographs and illustrations, real-world examples and case studies, and clear overviews to each topic Presents up-to-date and accessible coverage of contemporary forest science literature and research Addresses topical issues relevant to areas such as ecology, forest management, conservation, and government policy Provides a comprehensive, global perspective on forest soils, from tropical to temperate to boreal Presents balanced coverage of soil science principles and their practical application to forest management Ecology and Management of Forest Soils offers students in areas of soil science and forestry, natural resource and environmental management, ecology, agronomy, and conservation an invaluable overview of the field, while providing forestry professionals an efficient and current work of reference.
Download or read book The Effect of Climate and Vegetation on Soil Reaction Percent Base Saturation and Organic Carbon Content of Some Sierra Nevada Soils written by Donnell Leroy Blosser and published by . This book was released on 1970 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lime Effects on Soil Reaction and Base Content of Eleven Soil Types in Virginia written by and published by . This book was released on 1962 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Soil Interactions at Low pH written by Robert J. Wright and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1057 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil acidity is a major limitation to crop production in many parts of the world. Plant growth inhibition results from a combination of factors, including aluminum, manganese, and hydrogen ion toxicities and deficiencies of essential elements, particularly calcium, magnesium, phosphorus, and molybdenum. Agricultural management practices and acid precipitation have increased acid inputs into the ecosystem and heightened concern about soil acidity problems. While application of lime has proved to be effective in ameliorating surface soil acidity in many areas, significant soil acidity problems still exist. Scientists from Alberta, Canada, recognized the need to provide a forum for researchers from different disciplines to exchange information and ideas on solving problems of plant growth in acid soils. As a result of their efforts, the First International Symposium on Plant-Soil Interactions at Low pH was held at Grande Prairie, Alberta, Canada, in July 1987. In many acid soil areas, liming materials are not readily available, the cost may be prohibitive, or subsoil acidity cannot be corrected by surface application of lime. New management approaches involving both the plant and the soil are needed in these situations. Progress has been made in the selection and breeding of acid-tolerant plants. However, continued progress will be limited by our lack of understanding of the physiological and biochemical basis of differential acidity tolerance among plants.
Download or read book Lime Requirement Related to Physical and Chemical Properties of Nine Michigan Soils written by Gerhard John Ross and published by . This book was released on 1962 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Living Soil written by Jean-Michel Gobat and published by Science Publishers. This book was released on 2004 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study looks at the fundamentals of soil science and soil biology, encompassing topics such as the building blocks of the soil system and bioremediation of contaminated soils.
Download or read book Ecology and Management of Forest Soils written by Richard F. Fisher and published by John Wiley & Sons. This book was released on 2000-03-07 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition meets the needs of today's ecologically- and environmentally-oriented students, emphasizing the ecological aspects of forest soils. * Includes elements from Dr. Binkley's 1986 Wiley book, Forest Nutrition Management. * Reflects the change in emphasis from production forestry to ecology and environmental concerns. * Unites two strong publishing areas--forestry and soil science.
