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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.
1

Energiforbrug ved jordbearbejdning med dobbeltdrevne harvetænder parameteridentifikation og udvikling af empiriske modeller /

Have, Henrik. January 1988 (has links)
Thesis (Ph. D.)--Kongelige Veterinær - og Landbohøjskole, 1988. / Summary in English. NAL copy missing pages from p. 113-128. English summary "Energy requirements by soil tillage with dual-driven harrow tines"): p. 120-124. Includes bibliographical references.
2

The effects of narrow seeding points on soil structure, seed placement and crop growth in direct drilling systems /

Shahidi, Seyed-kazem. January 1996 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, Dept. of Agronomy & Farming Systems (Agricultural Technology), 1997. / Bibliography: p. 182-197.
3

Effect of two methods of tillage on soil physical properties and corn yields

Wengel, Raymond William, January 1957 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Abstracted in Dissertation abstracts, v. 17 (1957) no. 11, p. 2362. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 59-61).

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