Kolinko Y. Technological receptions of application the complex liguid fertilizers at corn growing

The object of study – corn plant growth, development and productivity formation processes depending on doses and periods of application of Reacom Plus complexonate; biological response of the plants to the micronutrient fertilizer applied as tank mixtures with postemergence herbicides. Purpose – to investigate efficacy of a complex fertilizer (Reacom Plus) and to develop appropriate techniques for its application as a part of a corn plant foliar dressing system as well as to find out feasibility and appropriateness of its combination with postemergence herbicides in tank mixtures. Methods – field, laboratory, billing, statistics. Results: Appropriate application techniques for foliar dressing of corn plants with a new complex micronutrient liquid fertilizer Reacom Plus (4 L/ha) at 3-5- and 6-7-leaf stages as well as its tank mixtures with a postemergent herbicide Dialen Super (1.25 L/ha) at a 3-5-leaf stage are developed and implemented into production, which makes it possible to achieve a yields of about 7.1-7.2 tons per ha in the conditions of the Northern Steppe of Ukraine along with 11-14% reduction of energy and production costs. The results of the studies are verified in the production environment and are successfully adopted at commercial farm units over a total area of 160 ha in the Dnipropetrovs’k Region. Novelty – for the first time in the Northern Steppe of Ukraine, appropriate complex micronutrient liquid fertilizer application techniques for foliar dressing of corn plants are developed with optimal doses, periods of application and plant responses to the agrichemicals adequately established and defined. Sector – agriculture.