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Martinelli, L. A. ;Piccolo, M. C. ;Townsend, A. R. ;Vitousek, P. M. ;Cuevas, E. ;McDowell, W. ;Robertson, G. P. ;Santos, O. C. ;Treseder, K. 1999. Nitrogen stable isotopic composition of leaves and soil: tropical versus temperate forests 46: 45-65.
Landis, D. A. ;Marino, P. C.  Brewer, G. 1999. Conserving parasitoid communities of native pests: Implications for agricultural landscape structure : 38-51.
Landis, D. ;Marino, P.  Ruberson, J. 1999. Landscape structure and extra-field processes: Impact on management of pests and beneficials : 79-104.
Kosola, K. R. ;Gross, K. L. 1999. Resource competition and suppression of plants colonizing early successional old fields 118: 69-75.
Kosola, K. R. 1999. Laparascopic sampling of roots of known age from an expandable-wall minirhizotron system 91: 876-879. doi:10.2134/agronj1999.915876x.
Jame, Y. W. ;Cutforth, H. W. ;Ritchie, J. T. 1999. Temperature response function for leaf appearance rate in wheat and corn 79: 1-10. doi:10.4141/p97-148.
Holland, E. A. ;Robertson, G. P. ;Greenberg, J. ;Groffman, P. ;Boone, R. ;Gosz, J.  Sollins, P. 1999. Soil CO2, N2O, and CH4 Exchange : 185-201.
Henry, A. ;Kosola, K. R. 1999. Root age and phosphorus effects on colonization of big bluestem (Andropogon geradii) by micorrhizal fungi 31: 1657-1660.
Groffman, P. M. ;Holland, E. A. ;Myrold, D. D. ;Robertson, G. P. ;Zou, X.  Sollins, P. 1999. Denitrification : 272-290.
Garrison, M. V. ;Batchelor, W. D. ;Kanwar, R. S. ;Ritchie, J. T. 1999. Evaluation of the CERES-Maize water and nitrogen balances under tile-drained conditions 62: 189-199.
Gage, S. H. ;Isard, S. A. ;Colunga-Garcia, M. 1999. Ecological scaling of aerobiological dispersal processes 97: 249-261.
Foster, B. L.;Gross, K. L. 1999. Temporal and spatial patterns of woody plant establishment in Michigan old fields 142: 229-243. doi:10.1674/0003-0031(1999)142[0229:TASPOW]2.0.CO;2.
Foster, B. L. 1999. Establishment, competition and the distribution of native grasses among Michigan old-fields 87: 476-489.
Cora, J. ;Pierce, F. J. ;Basso, B. ;Ritchie, J. T.  Larson, W. E. 1999. Simulation of within field variability of corn yield with CERES-Maize model : 1309-1319.
Collins, H. P. ;Blevins, R. L. ;Bundy, L. G. ;Christenson, D. R. ;Dick, W. A. ;Huggins, D. R. ;Paul, E. A. 1999. Soil carbon dynamics in corn-based agroecosystems: results from carbon-13 natural abundance 63: 584-591.
Calmon, M. A. ;Batchelor, W. D. ;Jones, J. W. ;Ritchie, J. T. ;Boote, K. J. ;Hammond, L. C. 1999. Simulating soybean root growth and soil water extraction using a functional crop model 42: 1868-1877.
Bruns, M. A. ;Stephen, J. R. ;Prosser, J. I. ;Paul, E. A. 1999. Comparative diversity of ammonia-oxidizer 16S rRNA gene sequences in native, tilled, and successional soils 65: 2994-3000.
Bergsma, T. T. ;Bergsma, Q. C. ;Ostrom, N. E. ;Robertson, G. P. 1999. A heuristic model for the calculation of dinitrogen and nitrous oxide flux for 15N-labeled soil 63: 1709-1716.
Asuming-Brempong, S. 1999. The Effect of 2,4-D selection on microbial communities in micrososm and field studies and the impact on ecosystem function
Bird, G. W. 2000. Nematodes and soil quality : 84-94.