Increase of Onion Productivity by Regulation of Growing Technology Elements
This article describes the impact of growth regulators used as foliar dressing on the high-quality commercial production of Mars and Candy F1 hybrid onion bulbs grown in the Rostov Region. The highest yield of finished product per 1 thousand m2 of leaf area and 1 thousand units of photosynthetic potential (PSP) was observed when the Candy and Mars hybrids were treated with Novosil (3.9-4.1 t and 45.0-47.0 kg, respectively), which also produced the highest rates of net photosynthesis productivity: 8.5-8.7 g / m2 per day. The effect of the agent on growth processes was slightly more effective in the Candy hybrid. It was established that the use of Novosil and Immunocytophytes foliar dressing in growing technology makes it possible to obtain the Mars and Candy hybrids at the level of 49.0-50.1 t / ha, reduce the consumption of additional irrigation water per unit of production and improve the quality of commercial onion bulbs and their storage for a long winter period. The increase in storage resulting from the use of Novosil occurred due to the decrease in the natural loss and mass of the sprouted bulbs.
Keywords: onion, hybrid, yield, stimulant fertilizer, storage, quality
 Grigoriev, A. A. and Baranova, I. V. (2018). Analysis of the Onion Market in the Russian Federation for 2012-2016 Concept. In Modern research in the field of natural, technical and physical and mathematical sciences Kirov: Interregional Center for Innovative Technologies in Education.
 Borisov, V. A., et al. (2018). The System of Mineral Nutrition of Vegetable Crops. Moscow: EuroChem, p. 130.
 Bernikov, N. I. and Ognev, V. V. (2011). State and Prospects for the Development of Vegetable Growing in the Rostov Region. In Innovations in science, education and business are the basis for the effective development of the AIC. Persianovsky: Don GAU.
 Avdeenko, S. S. and Bondarev, I. I. (2013). The Complex of Agricultural Practices Increases the Yield and Quality of Onions. Potatoes and Vegetables, vol 1, pp. 5-7.
 Litvinov, S. S., Shatilov, M. V. (2014). Vegetable Growing - A New Impulse. Potatoes and Vegetables, vol 7, pp. 2-4.
 Wakchaure, G.C., Minhas, P. S., Meena, K. K. et al. (2018) Growth, bulb yield, water productivity and quality of onion (Allium cepa L.) as affected by deficit irrigation regimes and exogenous application of plant bio–regulators. Agricultural Water Management, vol 199, pp. 1-10.
 Lee, J. (2010) Effect of application methods of organic fertilizer on growth, soil chemical properties and microbial densities in organic bulb onion production. Science of Scientia Horticulturae, vol 124, pp. 299-305.
 Avdeenko, S. S. and Ispiryan, A. Z. (2019). The Influence of Growth Regulators on Growth Processes, Productivity, Quality and Shelf Life of Onions in the Central Irrigated Zone of the Rostov Region. In Resource Conservation and Adaptability in Technologies for Cultivating Crops and Processing Crop Products: Materials of the International Scientific and Practical Conference pos. Persianovsky: Don GAU.
 Litvinov, S. S. (1992). Methodology of Experimental Work in Vegetable Growing and Melon Growing. Moscow: Agropromizdat.
 Agafonov, E. V. and Poluektov, E. V. (1999). Soils and Fertilizers of the Rostov Region. Persianovsky: Don SAU.