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Subjects sampling Remove constraint sampling: sampling Year 2002 Remove constraint 2002: 2002
Displaying items 1 - 10 of 20 start over

1. A comparison of potential labor-saving sampling methods for asessing large mammal damage in corn

Description:
Includes references
Author:
Engeman, R.M. , Sterner, R.T. , Crop protection (Guildford, Surrey)
Subject:
mammals , vertebrate pests , crop damage , sampling , estimation , accuracy , no-tillage , dryland farming , Colorado
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

2. Comparison of sampling techniques for measuring the antimicrobial susceptibility of enteric Escherichia coli recovered from feedlot cattle

Description:
Includes references
Author:
Wagner, Bruce A. , Dargatz, David A. , Salman, M.D. , Morley, Paul S. , Wittum, Thomas E. , Keefe, Thomas J.
Subject:
beef cattle , steers , Escherichia infections , Escherichia coli , feces , antimicrobial agents , drug resistance , sampling , methodology , feedlots , antibiotic resistance
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

3. Diversity and phenology of predatory arthropods overwintering in cardboard bands placed in pear and apple orchards of central Washington state

Description:
Includes references
Author:
Horton, D.R. , Broers, D.A. , Hinojosa, T. , Lewis, T.M. , Miliczky, E.R. , Lewis, R.R.
Subject:
predatory arthropods , species diversity , phenology , Pyrus communis , orchards , natural enemies , Cacopsylla pyricola , monitoring , sampling , Washington
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

4. Effective population size during grass germplasm seed regeneration

Description:
Includes references
Author:
Johnson, R.C. , Bradley, V.L. , Evans, M.A.
Subject:
Poaceae , germplasm , genetic drift , prediction , plant genetic resources , wind , pollination , sampling , economic analysis , field experimentation , seed productivity , Pseudoroegneria spicata , population , Washington
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

5. Estimating soil water content in tallgrass prairie using remote sensing

Description:
Includes references
Author:
Starks, P.J. , Jackson, T.J.
Subject:
prairies , prairie soils , soil water content , remote sensing , microwave radiation , sampling , simulation models , water balance , particle size distribution , leaf area index , biomass , soil profiles , algorithms , data analysis , Oklahoma
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

6. Evaluation of soil survey scale for zone development of site-specific nitrogen management

Description:
Paper presented at the symposium "Crop diversification in the Northern Great Plains cropping systems" held November 1, 1999, Salt Lake City, Utah.
Author:
Franzen, D.W. , Hopkins, D.H. , Sweeney, M.D. , Ulmer, M.K. , Halvorson, A.D.
Subject:
nitrogen , soil fertility , precision agriculture , sampling , topography , methodology , North Dakota
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

7. Quantifying laboratory and field variability to assess potential for carbon sequestration

Description:
Includes references
Author:
Bowman, R.A. , Reeder, J.D. , Wienhold, B.J.
Subject:
soil organic matter , carbon , soil analysis , agricultural soils , fields , area , sampling , spatial variation , crop rotation , Triticum aestivum , Zea mays , Panicum miliaceum , fallow , Helianthus annuus , laboratories , Ohio
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

8. Quick tests for the determination of ammonia in poultry litter

Description:
Includes references
Author:
Reeves, J.B. III. , Van Kessel, J.S. , Malone, G.W.
Subject:
ammonia , rapid methods , infrared spectroscopy , chemical analysis , automation , electrical conductivity , colorimetry , reflectance , calibration , uric acid , accuracy , sampling , litter (bedding) , near-infrared reflectance spectroscopy
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

9. Reflectance and transmittance spectroscopy applied to detecting fumonisin in single corn kernels infected with Fusarium verticillioides

Description:
Includes references
Author:
Dowell, F.E. , Pearson, T.C. , Maghirang, E.B. , Xie, F. , Wicklow, D.T.
Subject:
corn , seeds , microbial contamination , food analysis , analytical methods , spectroscopy , fumonisins , Fusarium , sampling , classification
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

10. Relationship of soil test phosphorus and sampling depth to runoff phosphorus in calcareous and noncalcareous soils

Description:
Includes references
Author:
Torbert, H.A. , Daniel, T.C. , Lemunyon, J.L. , Jones, R.M.
Subject:
phosphorus , agricultural runoff , sandy loam soils , clay loam soils , calcareous soils , pastures , animal manures , rain , sampling , depth , soil analysis , agricultural watersheds , nonpoint source pollution , soil test values , regression analysis , equations
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002