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| Registros recuperados: 1.593 | |
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| Eujayl, Imad A.; Strausbaugh, C.A.. |
| Rhizomania caused by Beet necrotic yellow vein virus (BNYVV) and storage losses are serious sugar beet production problems. To identify sugar beet germplasm lines with resistance to BNYVV and storage rots, 11germplasm lines from the USDA-ARS Kimberly sugar beet program were screened. The lines were grown in a sugar beet field infested with BNYVV and one treated with Telone II (18 gpa) in Kimberly, ID during the 2015 growing season in a randomized complete block design with 4 replications. At harvest on 7 October 2015, roots were dug and evaluated for symptoms of rhizomania and also placed in an indoor commercial sugar beet storage building. After 126 days in storage, samples were evaluated for surface fungal growth.... |
| Tipo: Article |
Palavras-chave: Rhizomania; Storage; Sugarbeet. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1625/1/1582.pdf |
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| Tarkalson, D.D.; Bjorneberg, D.L.. |
| Nutrient placement options with strip tillage (ST) can potentially improve plant nutrient utilization and increase crop yield compared to conventional fertilizer placement practices under conventional tillage (CT). The effects of tillage practice and nitrogen (N) and phosphorus (P) placement on grain yield, biomass yield (whole plant, grain + cobs + stover), and N and P uptake of field corn (Zea mays L.) were assessed on four sites during 2007 and 2009 at the USDA-ARS Northwest Irrigation & Soils Research Laboratory at Kimberly, ID. During each year, two locations (eroded and not eroded from furrow irrigation) were utilized as study locations. Band placement of fertilizer with ST increased corn grain yield by 12.5 % (11 bu/acre) and 25.9% (26 bu/acre)... |
| Tipo: Conference or Workshop Item |
Palavras-chave: Tillage; Nitrogen; Phosphorous. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1386/1/1361.pdf |
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| Wortmann, C.S.; Tarkalson, D.D.; Shapiro, C.A.; Dobermann, A.R.; Ferguson, R.B.; Hergert, G.W.; Walters, D.T.. |
| Nitrogen use efficiency (NUE) is of economic and environmental importance. Components of NUE were evaluated in 32 irrigated corn (Zea mays L.) trials conducted across Nebraska with different N rates and where the previous crop was either corn (CC), drybean (Phaseolus vulgaris L.) (CD), or soybean (Glycine max L.) (CS). The mean grain yield with adequate nutrient availability was 14.7 Mg ha–1 . When no N was applied, measured soil properties and irrigation water N accounted for <20% of the variation in plant N uptake (UN). Mean fertilizer N recovery in above-ground biomass was 74% at the lowest N rate compared with 40% at the highest N rate, a mean of 64% at the economically optimal N rate (EONR), and least with CD. Agronomic efficiency of... |
| Tipo: Article |
Palavras-chave: Corn / maize; Nitrogen. |
| Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1414/1/1384.pdf |
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| Dungan, R.S.; Leytem, A.B.. |
| The generation of airborne microorganisms from concentrated animal-feeding operations (CAFOs) is a concern from a human and animal health perspective. To better understand the airborne microorganisms found in these environments, a number of collection and analytical techniques have been utilized and will be discussed in this review. The most commonly used bioaerosol collection method is the liquid impingement format, which is suitable with a number of culture-based and non-culture molecularbased approaches, such as polymerase chain reaction. However, the vast majority of airborne microorganism studies conducted at CAFOs utilize culture-based analyses. Because of the limitations often associated with culturebased analyses, we focused our... |
| Tipo: Article |
Palavras-chave: Manure; Animal. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1337/1/1314.pdf |
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| BARTELT-HUNT L, SHANNON; SNOW D, DANIEL; KRANZ L, WILLIAM; MADER L, TERRY; Shapiro, C.A.; VAN DONK J, SIMON; SHELTON P, DAVID; Tarkalson, D.D.. |
| Supplements and growth promotants containing steroid hormones are routinely administered to beef cattle to improve feeding efficiency, reduce behavioral problems, and enhance production. As a result, beef cattle manure will contain both synthetic steroids as well as a range of endogenous steroids including androgens, estrogens, and progestogens. A two-year controlled study was conducted in which beef cattle were administered steroid hormones via subcutaneous implants and feed additives and the occurrence of sixteen endogenous and synthetic steroid hormones and metabolites was evaluated in runoff from beef cattle feedlots and in manure and soil collected from feedlot surfaces. Samples were extracted and analyzed using liquid chromatography tandem mass... |
| Tipo: Article |
Palavras-chave: Animal; Runoff; Manure. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1450/1/1415.pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.; Rearick, E.; Foote, P.. |
| Thirty-two transgenic (glyphosate resistant) and six conventional commercial sugar beet cultivars were evaluated in a commercial sprinkler-irrigated sugar beet field near Rupert, ID where winter wheat was grown in 2006. The field trial relied on natural infection for rhizomania development. The plots were planted on 3 Apr 07 to a density of 142,560 seeds/A, and thinned to 47,520 plants/A on 23 May. Plots were four rows (22-in. row spacing) and 24 ft long. The experimental design was a randomized complete block design with four replications per entry. The crop was managed according to standard cultural practices. The roots were mechanically topped and the center two rows were collected with a mechanical harvester on 26 Sep. At harvest the roots were... |
| Tipo: Article |
Palavras-chave: Sugarbeet. |
| Ano: 2008 |
URL: http://eprints.nwisrl.ars.usda.gov/1286/1/1263.pdf |
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| Registros recuperados: 1.593 | |
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