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| Registros recuperados: 118 | |
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| Moore, A.; Ippolito, J.A.. |
| A rising concern with the application of dairy wastes to agricultural fields is the accumulation of copper (Cu) in the soil. Copper sulfate (CuSO4) from cattle foot baths are washed out of dairy barns and into wastewater lagoons. The addition of CuSO4 baths has been reported to increase Cu concentration significantly in manure slurry from 4.8 g/1000 L to 88.6 g/1000 L (Miner Institute, New York). The Cu-enriched dairy waste is then applied to agricultural crops, thus raising concerns about how soils and plants are impacted by these Cu additions. |
| Tipo: Technical Bulletin |
Palavras-chave: Animal. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1375/1/1348.pdf |
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| Westermann, Dale T.. |
| French fries processed from sugar end potatoes become undesirably dark on one end while remaining light on the other (fig. 1). The darkening is usually caused by a higher concentration of reducing sugars in the darkened end of the fry strip. Sugar ends are associated with tubers that are pointed on the stem end but also occur in ideally shaped tubers. "Translucent end," "jelly end," and "sugar end" describe the same physiological tuber problem. Translucent end tubers with high levels of sugars develop jelly end rot after progressive tissue breakdown occurs. The Russet Burbank variety is particularly susceptible to sugar end formation when subjected to water and heat stress. |
| Tipo: Technical Bulletin |
Palavras-chave: Potato; Mass Import - autoclassified (may be erroneous). |
| Ano: 1993 |
URL: http://eprints.nwisrl.ars.usda.gov/1167/1/784.pdf |
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| Blickenstaff, C.C.. |
| Approximately 450 species of insects were collected in sugarbeet fields in south-central Idaho over the 4-year period 1974 to 1977. Fifty-four species or species groups were taken from 50 percent or more of the fields sampled; 18 were classed as destructive or potentially destructive, 14 as beneficial, and 22 of unknown function. Of the 54, 18 were collected more commonly by sweep net, 34 were collected more commonly by pitfall traps, and 2 were collected equally by the two methods. Fourteen of the 54 were taken exclusively by pitfall traps. The apparent effect of aldicarb on insect populations varied widely with an overall reduction of about 20 percent. The effect of aldicarb treatment an the sugarbeet root maggot, curly top disease, lygus, and... |
| Tipo: Technical Bulletin |
Palavras-chave: Sugarbeet; Mass Import - autoclassified (may be erroneous). |
| Ano: 1982 |
URL: http://eprints.nwisrl.ars.usda.gov/1120/1/489.pdf |
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| Murray, R.B.; Mayland, H.F.; Van Soest, P.J.. |
| Seven grass species--desert wheatgrass (Agropyron desertorum), streambank wheatgrass (Agropyron riparium), cheatgrass (Bromus tectorum), basin wildrye (Elymus cirtereus), Sandberg's bluegrass (Poa sandbergii), bottlebrush squirreltail (Sitanion hystrix), and needle-and-thread grass (Stipa comata)--were harvested to a 1/2-inch (1.2-cm) stubble height periodically between mid-March and December in most years from 1962 through 1968 at the Saylor Creek Experimental Range in southern Idaho. These samples were analyzed for N, P, S, Ca, Mg, K, Na, Zn, Mn, Cu, and Fe. Certain digestibility fractions (NDF, NDF-ash, DCW, DCW-ash free, and TDDM) were also determined on these samples. In addition, estimates of the soil chemical status, soil moisture contents... |
| Tipo: Technical Bulletin |
Palavras-chave: Animal; Grass forage; Mass Import - autoclassified (may be erroneous). |
| Ano: 1978 |
URL: http://eprints.nwisrl.ars.usda.gov/1116/1/398.pdf |
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| James, D.W.; Leggett, G.E.; Dow, A.I.. |
| To facilitate irrigation in central Washington, land is leveled or smoothed on a broad scale. As a result, the calcareous and extremely infertile subsoils are exposed and used directly as a medium for plant growth. Phosphorus fertilizer requirements of exposed subsoils were determined by measuring crop yield and P uptake on plots that were fertilized in the current and one, two or three preceding seasons. Annual crops used as indicators of P availability at three sites were field beans, Sudangrass and sugar beets. A supplementary experiment involved fertilization of a previously established alfalfa crop. Crop growth and P uptake results were correlated with sodium bicarbonate soil testing |
| Tipo: Technical Bulletin |
Palavras-chave: Calcareous soil; Fertility; Phosphorous; Mass Import - autoclassified (may be erroneous). |
| Ano: 1967 |
URL: http://eprints.nwisrl.ars.usda.gov/1133/1/105.pdf |
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| Registros recuperados: 118 | |
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