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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, 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, 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, Silva, J. L., Patel, M., Stojanovic, J., Lu, Y., T, K., and Horgan, T., Human Hair as Nutrient Source for Horticultural Crops, HortTechnology, vol. 18, pp. 592-596, 2008.
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.
V. D. Zheljazkov and WARMAN, P., Application of high Cu compost to Swiss chard and basil, The Science of The Total Environment, vol. 302, no. 1-3, pp. 13 - 26, 2003.
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, no. 11, 2013.
V. D. Zheljazkov, Patterson, K., Parsons, K. J., and Sampson, G., Tolerance of bare-rot ornamental perennials to selected herbicides, Can. J. Plant Sci. , pp. 439-442, 2007.
V. D. Zheljazkov, Silva, J. L., Patel, M., Stojanovic, J., Lu, Y., Kim, T., and Horgan, T., Human hair as a nutrient source for horticultural crops, HortTechnology, vol. 18, no. 4, 2008.
V. D. Zheljazkov and Zhalnov, I., The effect of the method of propagation and the planting density of Mentha upon the removal of nitrogen, phosphorus, and potassium with the planting material, Higher Institute of Agriculture – Plovdiv, Scientific Works, vol. 36, pp. 33-41, 1991.
V. D. Zheljazkov and Astatkie, T., Distillation waste water can modify peppermint (Mentha x piperita L.) oil composition, Industrial Crops and Products, vol. 36, pp. 420-426, 2012.
V. D. Zheljazkov, Kovatcheva, N., Stanev, S., and Zheljazkova, E., Effect of heavy metal polluted soils on some qualitative and quantitative characters of mint and cornmint, Essential Oils: Basic and Applied Research, 1997.
V. D. Zheljazkov, Vick, B., Ebelhar, W., Buehring, N., and Astatkie, T., Effect of N on yield and chemical profile of winter canola in Mississippi, Journal of Oleo Science, vol. 62, no. 7, pp. 453 - 458, 2013.
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 Horticulturae, no. 426, pp. 473 - 482, 1996.
V. D. Zheljazkov, Vick, B., M. Ebelhar, W., Buehring, N., and Astatkie, T., Nitrogen applications modify seed and oil yields and fatty acid composition of winter mustard, Industrial Crops and Products, vol. 36, no. 1, pp. 28 - 32, 2012.

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