• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2110
  • 752
  • 545
  • 217
  • 217
  • 217
  • 217
  • 217
  • 214
  • 90
  • 52
  • 47
  • 36
  • 23
  • 18
  • Tagged with
  • 4506
  • 1493
  • 638
  • 559
  • 292
  • 287
  • 284
  • 274
  • 273
  • 263
  • 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.
371

Critical state framework and liquefaction of fine-grained soils

Worthen, Diana, January 2009 (has links) (PDF)
Thesis (M.S. in civil engineering)--Washington State University, August 2009. / Title from PDF title page (viewed on Aug. 10, 2009). "Department of Civil and Environmental Engineering." Includes bibliographical references (p. 45-46).
372

Mechanisms of iron reduction and phosphorus solubilization in an intermittently wet pasture soil

Wilmoth, Jared L. January 2009 (has links)
Thesis (M.S.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains ix, 116 p. : ill. (some col.). Includes abstract. Includes bibliographical references.
373

The effects of copper on the degradation of atrazine and indoxacarb in a New Zealand soil : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Environmental Science at the University of Canterbury /

Dewey, Katrina Anne. January 2010 (has links)
Thesis (M. Sc.)--University of Canterbury, 2010. / Typescript (photocopy). Includes bibliographical references (p. [105]-112). Also available via the World Wide Web.
374

Factors contributing to lime requirements of soils and the evaluation of lime requirement tests

Pionke, Harry Bernhard, January 1966 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1966. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 159-168.
375

Effects of calcium and magnesium on symbiotic nitrogen fixation by red clover, Trifolium pratense L

Longeri, Luis, January 1967 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
376

The influence of soil properties on the vegetation dynamics of Hluhluwe iMfolozi Park, KwaZulu-Natal /

Harrison, Rowena Louise. January 2009 (has links)
Thesis (M.Sc.) - University of KwaZulu-Natal, Pietermaritzburg, 2009. / Full text also available online. Scroll down for electronic link.
377

Mathematical analysis of soil temperatures in an arid region.

Foster, Kennith E.(Kennith Earl) January 1972 (has links)
A mathematical model study was made to compare simulated soil temperature variations with a field situation. The study involved the use of two plots, one of which was cleared of all vegetation and the other left in its natural vegetative state. Each plot was watered at the beginning of three different trial periods and as drying occurred, the following atmospheric parameters were measured on an hourly basis: incoming solar radiation, air temperature, relative humidity, cloud cover, and wind speed. The above parameters provided input for solution of the energy budget equation to determine soil surface temperature variation. Using the soil surface temperature variation as an upper boundary condition, and assuming heat movement by conduction, the temperature at 5 cm increments down to 70 cm in the soil was calculated. The two plots provided model testing for a bare soil surface and also for a soil surface beneath a 30 percent and a 40 percent plant cover. Actual and calculated temperature difference was in most cases less than 2°F. The mathematical model is applicable to any area where the above parameters may be monitored.
378

Adsorption, denitrification, and movement of applied ammonium and nitrate in Hawaiian soils / Applied ammonium and nitrate in Hawaiian soils

Balasubramanian, Vethaiya January 1974 (has links)
Typescript. / Thesis (Ph. D.)--University of Hawaii at Manoa, 1974. / Bibliography: leaves 160-167. / xiv, 167 leaves ill
379

Structural stability and mechanical strength of salt-affected soils /

Barzegar, Abdolrahman. January 1995 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Soil Science, 1996. / Copies of author's previously published articles in pocket inside back cover. Includes bibliographical references (leaves 147-160).
380

The effects of green manure on soil structure in calcareous sodic and non-sodic soils /

Harris, Mark Anglin. January 1995 (has links) (PDF)
Thesis (M. Ag. Sc.)--University of Adelaide, Dept. of Soil Science, 1997. / Includes bibliographical references (leaves 159-177).

Page generated in 0.0277 seconds