Download or read book Potassium Release from Several Western Oregon Soils and Its Relationship to Crop Growth and Soil Mineralogy written by Ernest Hugh Gardner and published by . This book was released on 1960 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Release of Exchangeable and Nonexchangeable Potassium from Several Western Oregon Soils written by Alexander Pope and published by . This book was released on 1956 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by and published by . This book was released on 1966 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts written by American Potash Institute. Library and published by . This book was released on 1961 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin Agricultural Experiment Station Oregon State University written by Oregon State University. Agricultural Experiment Station and published by . This book was released on 1967 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Soil Science written by and published by . This book was released on 1990 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts from the American Potash Institute Library Services written by American Potash Institute, inc., Washington, D. C. Library and published by . This book was released on 1957 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publication written by and published by . This book was released on 1971 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Recent Published Material on Soil and Water Conservation written by J. H. Stallings and published by . This book was released on 1950 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Recent Published Material on Soil and Water Conservation written by and published by . This book was released on 1952 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.

Download or read book Soil Solution Chemistry Profile Development and Mineral Authigenesis in Several Western Oregon Soils written by Joseph Reed Glasmann and published by . This book was released on 1982 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clay mineral genesis was studied in soils representative of several different geomorphic surfaces in western Oregon, ranging in age from Pliocene-early Pleistocene to late Pleistocene. Soil solution studies, clay mineralogy, and soil raicromorphology were employed to provide evidence of clay mineral synthesis and interpret soil genesis. Soils at each study area were characterized by distinct differences in soil solution chemistry, clay mineralogy, plasmic fabric, and genetic history, although parent material compositions between sites were often similar. Soil solution studies suggested that clay mineral synthesis from solution does not occur in soils representing the oldest geomorphic surface. The cxic soil properties at this location were developed during a prior weathering cycle and the soils are at a genetic endpoint in the present environment. Soil solutions from Ultisols on remnants of Pleistocene surfaces in the Oregon Coast Range were in equilibrium with respect to kaolinite in the solum, but stable with respect to Mg-montmorillonite in the zone characterizing active bedrock weathering. Microraorphological, clay mineralogical, and chemical evidence suggested that alteration of Mgchlorite in sedimentary rocks leads to smectite genesis in the Cr horizon of the Ultisols, followed by conversion of smectite to halloysite and chloritic intergrade in the solum. Alteration of basalt in these soils also leads to the formation of smectite, which is unstable with respect to halloysite in well-drained microenvironments within soil profiles. Soil solutions from soils characteristic of silt-mantled late Pleistocene surfaces on the western margins of the Willamette Valley showed compositional variation from pedon to pedon and horizon to horizon within individual pedons, reflecting the influence of soil parent material compositional variation. Soil solutions were generally in equilibrium with respect to kaolinite, although solutions from horizons developed in tuffaceous sediments were in equilibrium with Mg-montmorillonite. Both kaolinite and smectite were observed as products of mineral authigenesis in these soils. Authigenic clay showed delicate honeycomb or hexagonal morphology in contrast to the parallel oriented appearance of illuvial clays. Andesite alteration in wet, unstable soils of Oregon's western Cascades also resulted in the formation of smectite. The sequence of mineral alteration in andesites is similar to that described for basalts; however, the final products of mineral authigenesis are distinctly microenvironment dependent. Morphologic evidence suggests that chemical properties of bulk soil solutions can not always be considered to represent the solution conditions at the site of mineral authigenesis. In the absence of reliable in situ micro-chemical analytical techniques, detailed micromorphological studies can aid'in interpreting soil microchemical properties at weathering surfaces by revealing the identity of neoformed secondary phases.

Download or read book Bibliographic Series written by and published by . This book was released on 1960 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1970 with total page 1776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book OSU Theses and Dissertations written by and published by . This book was released on 1967 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1984 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Soil Science Fertilizers and General Agronomy written by Commonwealth Bureau of Soils and published by . This book was released on 1963 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: