St. John 209C
3190 Maile Way
Honolulu, HI 96822

Phone: (808) 956-7909

Fax: (808) 956-3894


Theodore Radovich

Associate Specialist 


Ecology, yield and quality of food crops.


Ph.D., Horticulture and Crop Science, The Ohio State University, 2004
M.Sc., Horticulture, University of Hawaii, Manoa, 2000
B.Sc., Horticulture, University of Hawaii, Manoa, 1994

Courses Taught:

Research Interests:

My research program is focused on understanding how crop yield and quality can be optimized in agricultural systems that reduce reliance on conventional chemical inputs and increase use of ecological farming practices.

Selected Publications:

  • Berek, A.K. Berek, Nguyen, N.V., Radovich, T.J.K., and Ahmad, A.A. 2018. Biochars Improve Nutrient Regulation of Highly Weathered Soils. Agronomy Journal: (In Press).
  • Gangaiah, C., Ahmad, A.A., Smith, C.M., and Radovich, T.J.K. (Senior, Corresponding Author). 2018. Potassium Release Kinetics from Three Invasive Algae Mixed with Different Media in Leachate Column Studies. Journal of Applied Phycology (JAPH): (In Press)
  • Radovich, T.J.K 2018. Vegetable biology and Classification. In: Handbook of Vegetables and Vegetable Processing, 2nd edition. Wiley-Blackwell, Iowa.
  • Radovich, T.J.K. 2017. Organic Farming. The Oxford Encyclopedia Of Agriculture and the Environment.
  • Chandrappa Gangaiah, Amjad A. Ahmad, Hue V. Nguyen, Koon-Hui Wan, and Theodore J.K. Radovich. 2017. Evaluating Three Invasive Agal Species as Local Organic Sources of Potassium (K) for Pak Choi (Brassica rapa, Chinensis group) Growth.HortScience 52: 436-440.
  • Chandrappa Gangaiah, Amjad A. Ahmad, Hue V. Nguyen, and Theodore J.K. Radovich. 2016 A correlation of rapid Cardy meter sap test and ICP spectrometry of dry tissue for measuring potassium (K+) concentrations in pak choi (Brassica rapa Chinensis group). Commun. Soil Sci. Plant Anal. 47:2046-2052.
  • Paudel, B., Chan, C., Halbrendt, J., Crow, S.E., Radovich, T.J.K., &Norton, G. (2016). Bioeconomic optimization of conservation agriculture production systems(CAPS) for smallholder tribal farmers in the hill region of Nepal. Journal of Soil and Water Conservation, 71(2), 103-117. doi:10.2489/jwsc.71.2.103
  • Amjad. A. Ahmad; Theodore J.K. Radovich, and Nguyen V. Hue. 2015. Effects of intercropping different legumes on growth of sweet corn (Zea mays). Journal of Crop Improvement, 29(3); 370-378.
  • Krishnakumar, J., Yanagida, J.F., Antha, V., Balakrishnan, R., & Radovich T.J.K.(2015). Non-timber forest products certification and management: a socioeconomic study among the Kadars in Kerala, India. Environment Developemnt and Sustainability, 17(4), 837-858. doi:10.1007/s10668-014-9578-x
  • Amjad. A. Ahmad; N.V.Hue, and Theodore J.K. Radovich. 2014. Nitrogen release patterns of some locally made composts and their effects on the growth of Chinese cabbage (Brassica rapa, Chinensis group) when used as soil amendments. Compost Science & Utilization 22(4): 199-206.


  • Sustainable and Organic Farming Systems - Members