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  • 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.

Search results

Showing 241 to 250 of 578 (0.066 seconds)

Spelling suggestions: "subject:"soil fertility."" "subject:"oil fertility.""

241

Impact of long-term no till and plow till on soil properties and soil nutrient cycling

Mestelan, Silvia A., January 2008 (has links)
Thesis (Ph. D.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 122-143).
242

Persistence of western juniper resource islands following canopy removal /

Miwa, Christopher. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 46-55). Also available on the World Wide Web.
243

Improved soil and water conservatory managements for cotton-maize rotation system in the western cotton area of Burkina Faso /

Ouattara, Korodjouma, January 2007 (has links) (PDF)
Diss. (sammanfattning) Umeå : Sveriges lantbruksuniv., 2007. / Härtill 3 uppsatser.
244

Soil nitrogen fluxes in Swedish and Nigerian agricultural systems /

Röing, Kristina, January 2005 (has links) (PDF)
Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv. / Härtill 4 uppsatser.
245

Nutrient management in smallholder peri-urban farming systems : a case study in southern Vietnam /

Hedlund, Anna, January 2003 (has links) (PDF)
Lic.-avh. Uppsala : Sveriges lantbruksuniv. / Härtill 2 uppsatser.
246

Nutrient and trace element flows and balances at the Öjebyn dairy farm : aspects of temporal and spatial variation and management practices /

Bengtsson, Helena, January 2005 (has links) (PDF)
Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv. / Härtill 4 uppsatser.
247

Comparative effects of nitrogen phosphorus and the micronutrients on rice and oats on a lateritic soil.

Kanapathy, Kandasamy. January 1955 (has links) (PDF)
Thesis (B. Sci. (Hons.))--University of Adelaide, Faculty Agricultural Science,1955. / Typewritten copy. Includes bibliographical references.
248

Planted tree fallows and their influence on soil fertility and maize production in East Africa : nitrogen fixation and soil nitrogen dynamics /

Ståhl, Lena, January 2005 (has links) (PDF)
Diss. (sammanfattning). Umeå : Sveriges lantbruksuniv. / Härtill 3 uppsatser.
249

Soil properties in relation to topographic aspects, vegetation communities and land use in the south-eastern highlands of Ethiopia /

Yimer, Fantaw, January 2007 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2007. / Härtill 4 uppsatser.
250

Quantifying mineral sources of potassium in agricultural soils /

Andrist Rangel, Ylva, January 2008 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniversitet, 2008. / Härtill 5 uppsatser.

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