Showing 1 - 7 of 7 for search: 'Westra, Philip.', query time: 0.04s
by Westra, Philip.
Published: Colorado State University Extension Service, 2003
Description: 1 PDF (2 unnumbered pages : illustrations ; 85 KB).
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by Miller, Patrick A.
Published: Colorado State University Extension Service, 1998
Description: 1 PDF (2 unnumbered pages : illustrations ; 48 KB).
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by Miller, Patrick A.
Published: Colorado State University Extension Service, 1998
Description: 1 PDF (6 unnumbered pages ; 45 KB).
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by Miller, Patrick A.
Published: Colorado State University Extension Service, 1998
Description: 1 PDF (3 unnumbered pages : illustrations ; 47 KB).
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by Miller, Patrick A.
Published: Colorado State University Extension Service, 1998
Description: 1 PDF (3 unnumbered pages : illustrations ; 33 KB).
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by Miller, Patrick A.
Published: Colorado State University Extension Service, 1998
Description: 1 PDF (3 unnumbered pages) ; 32 KB).
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by Johnson, Jerry (Agricultural extension worker)
Published: Colorado State University Cooperative Extension, 2002
Description: 1 PDF (1 sheet (4 unnumbered pages) : illustrations ; 42KB).
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Herbicides Application Plants Effect of herbicides on Surface active agents Droughts Herbicides Herbicides Environmental aspects Plants Herbicide tolerance Radioactive substances in soils Soil percolation Winter wheat