2. Godwin, D. C. and U. Singh. 1989. Nitrogen dynamics in IBSNAT crop models. Agronomy Abstracts, p. 15.

3. Hodges, T. 1991. Simulating Carbon and Nitrogen Partitioning in Potato. Agronomy Abstracts, p. 19. (Abstract)

4. Hodges, T. 1992. FORTRAN graphics library for PC-based crop simulation models. Agronomy Journal 84:124-128.

5. Hodges, T. and B. B. Dean. 1992. Simulating solids content of potato tubers. Agronomy Abstracts, p. 17. (Abstract)

6. Hodges, T. and D. W. Evans. 1992. Leaf emergence and leaf duration related to thermal time calculations in CERES-Maize. Agronomy Journal 84:724-730.

7. Hodges, T. and Ewing, E. An algorithm integrating the effects of photoperiod, light intensity, mean and daily range of temperature, and leaf area on tuberization of potato. Workshop on Crop Simulation, Program and Abstracts, p. 4. March 28-30, 1989, Univ. Ill., Urbana-Champaign, IL. (Abstract)

8. T. Hodges, B. S. Johnson, and L. A. Manirique. SUBSTOR: A Model of Potato Growth and Development. Agronomy Abstracts, p16. 1989. (Abstract)

9. Hodges, T., S. L. Johnson, and B. S. Johnson. 1992. SIMPOTATO: A highly modular program structure for an IBSNAT style crop simulation. Agronomy Journal 84:911-915.

10. Hodges, T., Magnussen, D., and Ritchie, J. T. A proposed algorithm for nitrogen control of carbon partitioning between tops, roots, and tubers of potato. Tenth Ann. Workshop on Crop Simulation, Program and Abstracts, p. 9. March 3-5, 1987. (Abstract)

11. Hodges, T. and Yoder, R. 1991. Using Carbon:Nitrogen Ratio to Control Partitioning for Potatoes. American Potato Journal p. 615 (Abstract)

12. IBSNAT. 1990. IBSNAT Technical Report 5, Documentation for IBSNAT Crop Model Input and Output Files, Version 1.1. IBSNAT Project, Department of Agronomy and Soil Science, University of Hawaii, Honolulu, HA.

13. IBSNAT. 1991. IBSNAT Technical Report 4, Documentation for the IBSNAT Data Base Management System for the Decision Support System for Agrotechnology Transfer (DSSAT v.2.1). IBSNAT Project, Department of Agronomy and Soil Science, University of Hawaii, Honolulu, HA.

14. Johnson, Scott Lee. 1990. An economic evaluation of on-farm strategies for reduction of nitrate groundwater pollution: The case of irrigated production in the Columbia Basin. PhD Dissertation, Oregon State University, Dept. of Agricultural and Resource Economics. Corvallis, OR.

15. Ritchie, J. T., D. C. Godwin, and U. Singh. 1989. Soil and weather inputs for the IBSNAT models. Agronomy Abstracts p. 21.

16. Ritchie, J. T., U. Singh, D. C. Godwin, and L. Hunt. 1991. A users guide to CERES-Maize - version 2.10. International Fertilizer Development Center, Muscle Shoals, AL.