Potapskij Y. Efficiency of elements of technology of growing of root crops of carrot in the conditions of Sonth part of western Forest-steppe of Ukraine.

Object: the processes of growth, plant development, yield formation and quality of output of carrot for different elements growing technology in the southern part of Steppe Ukraine. Goal: scientific evidence, improvement and development of elements of modern technology growing of carrots. Novelty: the first time in the southern part of Steppe Ukraine researched and scientifically-grounded regularities of high yield (60 t / ha or more) of output carrot depending on the technological elements of growth. Peculiarities of growth and development of plants were determined, installed both dynamics of leaf area formation and photosynthetic potential of crops. Correlations and regression equations were built and determined graphics curvilinear relationship between indicators of photosynthesis and yield. Results: identified a new and improved existing elements of the technology of growing carrots, found that the best grow of carrots roots observed after early spring planting or for late autumn planting, it provides increase crop yields up to 58,8-59,7 t / ha. The use of growth regulators Ivin (2 ml / l) and emistim C (0.5 ml / l) increases the amount of dry matter, carotene, sugars and gives increase of yield up to 2 t / ha and more.