• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2104
  • 752
  • 545
  • 217
  • 217
  • 217
  • 217
  • 217
  • 214
  • 90
  • 52
  • 47
  • 36
  • 23
  • 18
  • Tagged with
  • 4502
  • 1492
  • 638
  • 559
  • 292
  • 287
  • 283
  • 273
  • 273
  • 262
  • 261
  • 245
  • 208
  • 188
  • 185
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

The influence of nitrogenous fertilizers upon the availability of the phosphorus, potassium, and calcium in the soil

Fudge, J. F. January 1928 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1928. / Typescript. Includes bibliographical references (leaves 78-83).
132

Factors influencing base saturation and Ca/Mg ratios in soils of southeastern Ohio /

Saif, Hakeem Thamir January 1986 (has links)
No description available.
133

A comparative analysis of four methods for detecting nitrogen in a heterogeneous serpentine landscape : the potential influence of fire and habitat /

Franklin, David. January 1900 (has links)
Thesis (M.A.)--Humboldt State University, 2009. / Includes bibliographical references (leaves 41-48). Also available via Humboldt Digital Scholar.
134

Identifying Shallow Foundation Failure Modes and Mechanisms Using Surveillance of a Transparent Granular Soil Surrogate

Unknown Date (has links)
A transparent soil model of granular fused quartz is developed to study the mechanics of shallow foundations. Soil models, unreinforced and reinforced, prepared at relative densities 0.34 (loose) and 0.64 to 0.69 (medium dense) are tested using a rectangular footing (25 mm wide x 40 mm long) under strain-controlled loading. Digital Image Correlation is used to identify displacements of a seeded central plane parallel to footing width (B) and construct vector fields and contour plots. Fiber-reinforced soil model data analysis is inconclusive. For the unreinforced medium-dense soil, minimum and peak magnitude horizontal displacements occurred directly under the footing at the footing edges; whereas in the loose soil, peak magnitude horizontal displacement occurred directly under the footing. Vector and contour plots revealed that a medium dense soil gradually distributes smaller magnitude displacements over a broad area, in contradistinction to acute, highly localized displacements of larger magnitude in a loose soil. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2017. / FAU Electronic Theses and Dissertations Collection
135

The influence of leaching amorphous material on the mechanical properties of a sensitive clay /

Becker, Ronny January 1979 (has links)
No description available.
136

Arkansas soils information system (ARK-SIS) : an interactive, web-based soils information system using digital geographic soils databases /

Sparks, Kelly Christina. January 2000 (has links)
Thesis (M.S.)--University of Arkansas, Fayetteville, 2000. / "August 2000." Includes bibliographical references (leaves 74-76).
137

Soils of Kwazulu-Natal and Mpumalanga recognition of natural soil bodies /

Turner, David Peter. January 2007 (has links)
Thesis (Ph.D.)Soil Science)--University of Pretoria, 2000. / Includes bibliographical references.
138

Characterization and quality of soils developing on a mountaintop removal coal mine

Thomas, Kevin A., January 2001 (has links)
Thesis (M.S.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains 149 p. : ill. (some col.), map (part col.). Vita. Includes abstract. Includes bibliographical references (p. 66-71).
139

Characterization and genesis of a Whitehouse sandy loam profile and a Hathaway sandy clay loam profile

Smith, B. R. (Bill Ross), 1941- January 1966 (has links)
No description available.
140

Study and evaluation of the soils of the agricultural farm "Alamos" in Hermosillo, Sonora, Mexico

Corella Gutierrez, Ramón Rafael, 1938- January 1961 (has links)
No description available.

Page generated in 0.0436 seconds