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| Registros recuperados: 193 | |
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| Blickenstaff, C.C.; Peckenpaugh, R.E.. |
| Little has been published on insecticidal control of the western bean cutworm on beans and corn. This report summarizes results of tests in southern Idaho from 1950 to 1980. Of 53 chemicals tested in the laboratory, 24 showed effectiveness approximately equal to or better than DDT or carbaryl, which were used as standards. Of 26 materials applied as sprays to beans with ground equipment, 7 that were tested most extensively indicate effectiveness equal to or better than carbaryl, and 9 tested less extensively .indicate a high degree of effectiveness. Of those materials applied by air to sweet corn, permethrin provided almost perfect control, Three formulations of carbaryl did not differ significantly in performance in individual tests, but the... |
| Tipo: Technical Bulletin |
Palavras-chave: Bean / dry bean; Research methodology; Mass Import - autoclassified (may be erroneous). |
| Ano: 1981 |
URL: http://eprints.nwisrl.ars.usda.gov/1118/1/477.pdf |
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| Bjorneberg, D.L.; Prestwich, C.J.; Evans, R.G.. |
| Although the percentage of surface irrigated land in the United States is declining, it is still used on 43% of the irrigated land, and 51% of the surface irrigated land is irrigated down furrows or rows (USDA, 2004). Water flowing in irrigation furrows often detaches and transports soil, reducing crop productivity and impairing off-site water quality. Crop yields were at least 25% less on fields eroded from over 80 years of furrow irrigation in south-central Idaho (Carter et al., 1985). Measured soil loss from furrow irrigated fields in this area varied from 1 to 141 Mg ha-1 annually (Berg and Carter, 1980) while the annual average soil loss from the entire irrigated tract was 0.46 Mg ha-1 in 1971 (Brown et al, 1974). This soil, and associated... |
| Tipo: Article |
Palavras-chave: Runoff losses; Research methodology; Mass Import - autoclassified (may be erroneous). |
| Ano: 2007 |
URL: http://eprints.nwisrl.ars.usda.gov/70/1/1235.pdf |
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| Registros recuperados: 193 | |
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