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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

Minimum Tillage in the Southwest

Harris, Karl, Erie, Leonard J., Fuller, Wallace H. 02 1900 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
2

Reduction of Energy Usage Through Improved Cultural Practices

Larson, Dennis, Hinz, Walter, Fangmeier, Del, Armstrong, Jim, Cannon, Dale, Taylor, Brooks, Openshaw, Martin, Heathman, Stan 02 1900 (has links)
No description available.
3

Determination of Repair and Operating Costs for Agricultural Machinery Used in Cotton Producing Areas

Larson, Dennis, Hinz, Walter, Cannon, Dale, Shiells, Bill 02 1900 (has links)
No description available.
4

Minimum Tillage Comparison on Short Staple

Armstrong, J. F., Hinz, W. W. 02 1900 (has links)
No description available.
5

Single Harvest Reduction of Costs and Energy Use

Farr, C. R. 02 1900 (has links)
No description available.
6

Reducing Energy Use in Cotton Production

Larson, Dennis L., Hinz, Walter W., Armstrong, J. F., Fangmeier, D. D. 02 1900 (has links)
No description available.
7

Comparison of cleaning performance for row cleaners on a strip-tillage implement

Roberge, Ryan Christopher 15 September 2010
Strip-tillage implements remove the residue from previous crops and form a seedbed ready for planting. An experiment was conducted to evaluate 5 row-cleaning devices. The proportion of residue removed by the implement was used as the performance indicator. Each of the 5 devices was evaluated at 2 speeds and orientations on the implement. The devices were tested in two blocks (fields) of corn residue (one high residue and one medium residue), and one field of wheat residue. An analysis was conducted, using a mixed-effects model, to compare the performance of the cleaners operating in the different conditions. All cleaners performed well, with no statistical difference in mean performance. All row cleaners performed more consistently in wheat residue, compared with performance in corn residue. Numerically, the consistency of the different cleaners was different, with one configuration performing less consistently than the other four. Edge-effects of the outside row unit of the implement had, in most cases, an insignificant effect on the row unit's cleaning performance.
8

Comparison of cleaning performance for row cleaners on a strip-tillage implement

Roberge, Ryan Christopher 15 September 2010 (has links)
Strip-tillage implements remove the residue from previous crops and form a seedbed ready for planting. An experiment was conducted to evaluate 5 row-cleaning devices. The proportion of residue removed by the implement was used as the performance indicator. Each of the 5 devices was evaluated at 2 speeds and orientations on the implement. The devices were tested in two blocks (fields) of corn residue (one high residue and one medium residue), and one field of wheat residue. An analysis was conducted, using a mixed-effects model, to compare the performance of the cleaners operating in the different conditions. All cleaners performed well, with no statistical difference in mean performance. All row cleaners performed more consistently in wheat residue, compared with performance in corn residue. Numerically, the consistency of the different cleaners was different, with one configuration performing less consistently than the other four. Edge-effects of the outside row unit of the implement had, in most cases, an insignificant effect on the row unit's cleaning performance.
9

Crop and soil response to four direct drilling techniques under dryland farming techniques /

Asoodar, Mohammad Amin Unknown Date (has links)
Thesis (PhD)--University of South Australia, 1998
10

Crop and soil response to four direct drilling techniques under dryland farming techniques /

Asoodar, Mohammad Amin Unknown Date (has links)
Thesis (PhD)--University of South Australia, 1998

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