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T. Colvin · SciRah

Researcher profile · Semantic Scholar

T. Colvin

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T. Colvin — researcher profile on SciRah

h-index: 35
Works: 138
Citations: 5,078

Most-cited papers

Review and Interpretation: Nitrogen Management Strategies to Reduce Nitrate Leaching in Tile-Drained Midwestern Soils
D. Dinnes, D. Karlen, D. Jaynes, T. Kaspar +3 more
20021,074 citations
Semantic Scholar
Nitrate loss in subsurface drainage as affected by nitrogen fertilizer rate.
D. Jaynes, T. Colvin, D. Karlen, C. Cambardella +1 more
2001Journal of Environmental Quality406 citations
Semantic Scholar
Soil quality response to long-term tillage and crop rotation practices
D. Karlen, C. Cambardella, J. Kovar, T. Colvin
2013194 citations
Semantic Scholar
Cluster Analysis of Spatiotemporal Corn Yield Patterns in an Iowa Field
D. Jaynes, T. Kaspar, T. Colvin, D. James
2003160 citations
Semantic Scholar
Ridge, Moldboard, Chisel, and No‐Till Effects on Tile Water Quality beneath Two Cropping Systems
R. Kanwar, T. Colvin, D. Karlen
1997144 citations Open access
Semantic Scholar
Model-Based Technique to Determine Variable-Rate Nitrogen for Corn
J. Paz, W. Batchelor, Bruce A. Babcock, T. Colvin +3 more
1999137 citations
Semantic Scholar
Grain Yield Mapping: Yield Sensing, Yield Reconstruction, and Errors
S. Arslan, T. Colvin
2002Precision Agriculture133 citations
Semantic Scholar
Relationship Between Six Years of Corn Yields and Terrain Attributes
T. Kaspar, T. Colvin, D. Jaynes, D. Karlen +4 more
2003Precision Agriculture130 citations
Semantic Scholar
Spatiotemporal variability of corn and soybean yield
D. Jaynes, T. Colvin
1997124 citations
Semantic Scholar
Relationship of Corn and Soybean Yield to Soil and Terrain Properties
T. Kaspar, D. Pulido, T. E. Fenton, T. Colvin +3 more
2004120 citations
Semantic Scholar
Thirty-year tillage effects on crop yield and soil fertility indicators
D. Karlen, J. Kovar, C. Cambardella, T. Colvin
2013119 citations
Semantic Scholar
Using the late spring nitrate test to reduce nitrate loss within a watershed.
D. Jaynes, D. Dinnes, D. W. Meek, D. Karlen +2 more
2004Journal of Environmental Quality101 citations
Semantic Scholar
Tilth index: an approach to quantifying soil tilth.
K. Singh, T. Colvin, D. Erbach, A. Q. Mughal
199298 citations
Semantic Scholar
Cropping System Effects on NO3-N Loss with Subsurface Drainage Water
A. Bakhsh, R. Kanwar, T. Bailey, C. Cambardella +2 more
200292 citations Open access
Semantic Scholar
ANALYSIS OFWATER STRESS EFFECTS CAUSING SPATIAL YIELD VARIABILITY IN SOYBEANS
J. Paz, W. Batchelor, T. Colvin, S. Logsdon +2 more
199892 citations
Semantic Scholar
Nutrient, Labor, Energy and Economic Evaluations of Two Farming Systems in Iowa
D. Karlen, M. Duffy, T. Colvin
199586 citations
Semantic Scholar
Yield Mapping by Electromagnetic Induction
P. Robert, R. Rust, W. E. Larson, D. Jaynes +2 more
199585 citations
Semantic Scholar
Corn Yield and Nitrate Loss in Subsurface Drainage from Midseason Nitrogen Fertilizer Application
D. Jaynes, T. Colvin
200681 citations
Semantic Scholar
SPATIO-TEMPORAL ANALYSIS OF YIELD VARIABILITY FOR A CORN-SOYBEAN FIELD IN IOWA
A. Bakhsh, D. Jaynes, T. Colvin, R. Kanwar
200080 citations
Semantic Scholar
Using Soil Attributes and GIS for Interpretation of Spatial Variability in Yield
A. Bakhsh, T. Colvin, D. Jaynes, R. Kanwar +1 more
200062 citations Open access
Semantic Scholar
An Evaluation of the Response of Yield Monitors and Combines to Varying Yields
S. Arslan, T. Colvin
2002Precision Agriculture58 citations
Semantic Scholar
Identifying spatial patterns of erosion for use in precision conservation
J. Schumacher, T. Kaspar, J. Ritchie, T. Schumacher +7 more
2005Journal of Soil and Water Conservation54 citations
Semantic Scholar
YIELD VARIABILITYWITHINACENTRAL IOWA FIELD
T. Colvin, D. Jaynes, D. Karlen, D. Laird +1 more
199752 citations
Semantic Scholar
Six Year Yield Variability Within a Central Iowa Field
T. Colvin, D. Jaynes, D. Karlen, D. Laird +1 more
199651 citations
Semantic Scholar
Tillage system effects on 15-year carbon-based and simulated N budgets in a tile-drained Iowa field
D. Karlen, Ajay Kumar, R. Kanwar, C. Cambardella +1 more
199845 citations Open access
Semantic Scholar
Prediction of NO3-N losses with subsurface drainage water from manured and UAN-fertilized plots using GLEAMS
A. Bakhsh, R. Kanwar, D. Jaynes, T. Colvin +1 more
200044 citations Open access
Semantic Scholar
SIMULATING EFFECTS OF VARIABLE NITROGEN APPLICATION RATES ON CORN YIELDS AND NO3 –N LOSSES IN SUBSURFACE DRAIN WATER
A. Bakhsh, R. Kanwar, D. Jaynes, T. Colvin +1 more
200143 citations Open access
Semantic Scholar
Soil type and crop yield determination from ground conductivity surveys.
D. Jaynes, T. Colvin, J. Ambuel
199343 citations
Semantic Scholar
A Fuzzy Logic Yield Simulator For Prescription Farming
J. Ambuel, T. Colvin, D. Karlen
199438 citations
Semantic Scholar
Soil Organic Nitrogen Enrichment Following Soybean in an Iowa Corn–Soybean Rotation
D. Martens, D. Jaynes, T. Colvin, T. Kaspar +1 more
200634 citations
Semantic Scholar
Alternative farming system effects on profile nitrogen concentrations on two Iowa farms
D. Karlen, T. Colvin
199234 citations
Semantic Scholar
TILLAGE AND NITROGEN MANAGEMENT EFFECTS ON CROP YIELD AND RESIDUAL SOIL NITRATE
A. Bakhsh, R. Kanwar, D. Karlen, C. Cambardella +3 more
200033 citations Open access
Semantic Scholar
Continuous grain yield monitoring
F. Pérez-Muñoz, T. Colvin
199629 citations
Semantic Scholar
Corn Response to Late-Spring Nitrogen Management in the Walnut Creek Watershed
D. Karlen, D. Dinnes, D. Jaynes, C. Hurburgh +3 more
200525 citations Open access
Semantic Scholar
Grain flow measurements with X-ray techniques.
S. Arslan, F. Inanc, J. Gray, T. Colvin
200025 citations
Semantic Scholar
Quantifying seedbed condition using soil physical properties
M. Tapela, T. Colvin
200224 citations
Semantic Scholar
LABORATORY PERFORMANCE OF A YIELD MONITOR
S. Arslan, T. Colvin
199924 citations
Semantic Scholar
Laboratory test stand for combine grain yield monitors
S. Arslan, T. Colvin
199819 citations
Semantic Scholar
VERIFICATION OF YIELD MONITOR PERFORMANCE FOR ON-THE-GO MEASUREMENT OF YIELD WITH AN IN-BOARD ELECTRONIC SCALE
M. Al-Mahasneh, T. Colvin
200018 citations
Semantic Scholar
Soil Property Contributions to Yield Variation Patterns
C. Cambardella, T. Colvin, D. Karlen, S. Logsdon +5 more
199617 citations
Semantic Scholar
N-MANAGEMENT AND CROP ROTATION EFFECTS ON YIELD AND RESIDUAL SOIL NITRATE LEVELS1
A. Bakhsh, R. Kanwar, D. Karlen, C. Cambardella +3 more
200115 citations Open access
Semantic Scholar
Evaluation of tillage and crop rotation effects on groundwater quality—Nashua project
R. Kanwar, D. Karlen, T. Colvin, W. Simpkins +1 more
199415 citations
Semantic Scholar
Machine Innovation for Inter Row Cotton Cultivation in Uzbekistan
M. Amonov, A. Pulatov, T. Colvin
200612 citations
Semantic Scholar
Anhydrous Ammonia Distribution During Field Application
H. Hanna, M. White, T. Colvin, J. Baker
200211 citations Open access
Semantic Scholar
A review of yield reconstruction and sources of errors in yield maps.
T. Colvin, S. Arslan, P. Robert, R. Rust +1 more
200011 citations
Semantic Scholar
The Soil Tilth Index : An evaluation and proposed modification
M. Tapela, T. Colvin
199811 citations
Semantic Scholar
TRAHFICABILITY DETERMINATION USING FUZZY SET THEORY
S. Thangavadivelu, T. Colvin
199110 citations
Semantic Scholar
Fuzzy-logic-based decision support system for scheduling tillage operations
S. Thangavadivelu, T. Colvin
19979 citations
Semantic Scholar
Impacts of swine manure application and alternative N-management practices on productivity, sustainability and water quality
R. Kanwar, D. Karlen, C. Cambardella, T. Moorman +2 more
19988 citations
Semantic Scholar
Impact of Manure and N-Management Systems on Water Quality
R. Kanwar, D. Karlen, C. Cambardella, T. Colvin +1 more
19968 citations
Semantic Scholar

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C. Cambardella×13
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R. Kanwar×12
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