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| 01881cam 2200361zi 4500 |
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| 001 | 9.944392 |
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| 003 | CaOODSP |
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| 005 | 20241023112841 |
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| 006 | m o d f |
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| 007 | cr cn||||||||| |
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| 008 | 241023e197304##abcd ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |an-cn-ab |
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| 086 | 1 |aCW69-37/26E-PDF |
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| 100 | 1 |aPatterson, J. H. |q(James Howard)|eauthor. |
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| 245 | 10|aEcological considerations of herbicide use in Alberta / |cJ.H. Patterson. |
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| 264 | 1|aEdmonton, Alberta : |bPesticide Section, Canadian Wildlife Service, |cApril, 1973. |
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| 300 | |a1 online resource (24 pages) : |bgraphs. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aManuscript reports ; |vno. 26 |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references (pages 21-24). |
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| 520 | |a"The majority of herbicides presently in use are employed for selective weed control in agricultural crops. Evaluations of the performance of such herbicides are primarily based on the efficiency of the chemical in controlling unwanted vegetation and the tolerance of the crops. However, cropland monocultures are, by fundamental ecological standards, simple and highly unstable ecosystems"--Page 13. |
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| 650 | 0|aHerbicides|xEnvironmental aspects|zAlberta. |
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| 650 | 0|aEcology|zAlberta. |
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| 650 | 6|aHerbicides|xAspect de l'environnement|zAlberta. |
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| 650 | 6|aÉcologie|zAlberta. |
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| 710 | 2 |aCanadian Wildlife Service. |bPesticide Section, |eissuing body. |
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| 830 | #0|aManuscript reports (Canadian Wildlife Service. Pesticide Section)|vno. 26.|w(CaOODSP)9.938904 |
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| 856 | 40|qPDF|s1.75 MB|uhttps://publications.gc.ca/collections/collection_2024/eccc/cw69/CW69-37-26-eng.pdf |
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