College of Agricultural Sciences

V. D. Zheljazkov, “Assessment of Wool Waste and Hair Waste as Soil Amendment and Nutrient Source”, Journal of Environment Quality, vol. 34, no. 6, p. 2310, 2005.

V. D. Zheljazkov, Astatkie, T., Zhalnov, I., and Georgieva, T. D., “Method for attaining rosemary essential oil with differential composition from dried or fresh material”, Journal of Oleo Science, vol. 64, no. 5, pp. 485 - 496, 2015.

V. D. Zheljazkov, Avula, B., Jones, A. M., Maddox, V., and Rowe, D., “Lignan and nutrient concentrations in American Mayapple (Podophyllum peltatum L.) in the Eastern United States”, HortScience, vol. 44, pp. 349-353, 2009.

V. D. Zheljazkov, Cantrell, C. L., Ebelhar, W., and Rowe, D., “Productivity, oil content, and oil composition of sweet basil as a function of nitrogen and sulphur fertilization”, Hort. Sci, vol. 43, no. 5, 2008.

V. D. Zheljazkov, Craker, L. E., Xing, B., Nielsen, N. E., and Wilcox, A., “Aromatic plant production on metal contaminated soils”, Sci. Total Environ., vol. 395, pp. 51-62, 2008.

V. D. Zheljazkov, Jones, A. M., Avula, B., Maddox, V., and Rowe, D., “Lignan and nutrient concentrations in American Mayapple (Podophyllum peltatum L.) in the Eastern United States”, HortScience, vol. 44, no. 2, 2009.

V. D. Zheljazkov and Zhalnov, I., “Study on the impact of different means for weed control in Mentha piperita Huds. and Mentha arvensis L.”, Higher Institute of Agriculture – Plovdiv, Scientific Works, vol. 36, pp. 51-57, 1991.

V. D. Zheljazkov, Astatkie, T., and Schlegel, V., “Effects of distillation time on Pinus Ponderosa essential oil Yield, composition, and antioxidant activity”, HortScience, vol. 47, pp. 785-789, 2012.

V. D. Zheljazkov, “Basil”, Plant Production, 1998.

V. D. Zheljazkov, Astatkie, T., and Jeliazkova, E. A., “Effect of foliar application of methyl jasmonate and extracts of juniper and sagebrush on essential oil yield and composition of ‘Native’ spearmint”, HortScience, vol. 48, no. 4, 2013.

V. D. Zheljazkov and Warman, P. R., “Phytoavailability and Fractionation of Cu, Mn, and Zn in soil following application of two composts to four crops”, Environ. Pollut., vol. 13, pp. 187-195, 2004.

V. D. Zheljazkov, Astatkie, T., Jeliazkova, E. A., Heidel, B., and Ciampa, L., “Essential oil content, composition and bio activity of juniper species in Wyoming, United States”, Natural Product Communications, vol. 12, pp. 201-204, 2017.

V. D. Zheljazkov, Craker, L. E., Xing, B., Nielsen, N. E., and Wilcox, A., “Aromatic plant production on metal contaminated soils”, Science of The Total Environment, vol. 395, no. 2-3, pp. 51 - 62, 2008.

V. D. Zheljazkov, Cantrell, C. L., and Astatkie, T., “Variation in Podophyllotoxin Concentration in Leaves and Rhizomes of American mayapple (Podophyllum peltatum L.)”, vol. 33, pp. 633-637, 2011.

V. D. Zheljazkov, Yankuloff, Y., Raev, R. Tsevtkov, Stanev, S., Margina, A., and Kovatcheva, N., “Achievements in breeding on medicinal and aromatic plants in Bulgaria”, in Proceedings of the International Symposium: Breeding Research in Aromatic and Medicinal Plants, 1996.

V. D. Zheljazkov, Astatkie, T., and Schlegel, V., “Distillation time changes oregano essential oil yields and composition but not the antioxidant or antimicrobial activities”, HortScience, vol. 47, no. 6, 2012.

V. D. Zheljazkov, Terziisky, D., and Karageorgiev, S., “Pollen morphology of Bulgarian Ocimum basilicum L. populations”, J. Herbs Spices & Medicinal Plants, vol. 4, pp. 71-76, 1996.

V. D. Zheljazkov, Astatkie, T., O'Brocki, B., and Jeliazkova, E. A., “Essential Oil Composition and Yield of Anise from Different Distillation Times”, HortScience, vol. 48, pp. 1393-1396, 2013.

V. D. Zheljazkov, Patterson, K., Parsons, K. J., and Sampson, G., “Preemergence weed control in ornamental perennials.”, CANADIAN JOURNAL OF PLANT SCIENCE, vol. 86, no. 5, 2006.

V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and M. Ebelhar, W., “Productivity, Oil Content and Composition of Two Spearmint Species in Mississippi”, Agron J, vol. 102, pp. 129-133, 2010.

V. D. Zheljazkov and Margina, A., “EFFECT OF INCREASING DOSES OF FERTILIZER APPLICATION ON QUANTITATIVE AND QUALITATIVE CHARACTERS OF MINT”, Acta Horticulturae, no. 426, pp. 579 - 592, 1996.

V. D. Zheljazkov, Cantrell, C. L., and Astatkie, T., “Variation in podophyllotoxin concentration in leaves and rhizomes of American mayapple (Podophyllum peltatum L.)”, Industrial Crops and Products, vol. 33, no. 3, pp. 633 - 637, 2011.

V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and M. Ebelhar, W., “Peppermint Productivity and Oil Composition as a Function of Nitrogen, Growth Stage, and Harvest Time”, Agronomy Journal, vol. 102, no. 1, p. 124, 2010.

V. D. Zheljazkov and Terziisky, D., “Scanning electron microscopy investigation on the spermoderma of grown in Bulgaria cultivars from genus Salvia, Lavandula, and Ocimum”, Acta Hort. , vol. 426, pp. 473-482, 1996.

V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and Jeliazkova, E. A., “Fall frosts effects on the essential oil of "Native" spearmint in Wyoming”, HortScience, vol. 11, pp. 1603-1606, 2012.