The yield of corn depending on seed treatment and foliar nutrition
DOI:
https://doi.org/10.31548/dopovidi2018.03.018Abstract
The main indicator of the efficiency of growing any crop is its yield. The problems of increasing the yield of corn plants are solved not only by selection and genetic methods, the introduction of fertilizers and pesticides, but also by the use of plant growth regulators, microfertilizers and bacterial preparations, which increasingly become the essential elements of intensive corn growing technologies.
The application of growth regulators allows realizing the potential characteristics of corn plants, inherent in nature and selection, as well as improving the quality of products and increasing yields. The positive effect of microfertilizers is due to the fact that they participate in the oxidation-restoring processes of carbohydrates in the environment. The composition of chlorophyll in the leaves is increased and the process of photosynthesis is improved under the influence of microelements.
The purpose of the research is to determine the peculiarities of the influence of microbiological preparations, microfertilizers and biostimulators on the growth, development and formation of productivity of different maturity corn hybrids in the Right-bank Forest-steppe.
The field studies were conducted on the experimental plot of Vinnytsia National Agrarian University during 2015-2017.
The results of studies the effects of pre-sowing seed treatment with the preparation Polimiksobakteryn, as well as foliar nutrition with the microfertilizer Micro Mineralis (corn) and the growth biostimulator “Stympo” on the yield of corn hybrids are presented.
The studies conducted by us in the conditions of the Right-bank Forest-steppe on the gray forest soils indicate that the yield of corn hybrids of different groups of maturity depended on the hydrothermal conditions of the years of the research and the studied factors, namely the pre-sowing seed treatment with the preparation Polimiksobakteryn, as well as the foliar nutrition with the microfertilizer Micro Mineralis (corn), both individually and in combination with the growth biostimulator “Stympo”. Thus, in 2015-2017, the yield of the middle-ripen corn hybrid Aria varied from 9.60 to 11.01 t/ha on average, while that one of the hybrid Pereyaslavskyi 230 SV from 9.29 to 10.61 t/ha.
In 2015-2017 the yield of the middle-ripen corn hybrid Dialoh varied from 10.97 to 12.57 t/ha on average, while the same indicator of the hybrid Flagman ranged from 10.32 to 11.77 t/ha.
Consequently, on the basis of our results, the middle-ripen corn hybrids had the highest yield: Aria – 11.01 t/ha, Pereyaslavskyi 230 SV – 10.61 t/ha, Dialoh –12.57 t/ha, Flagman – 11.77 t/ha. It was obtained when using the complex action of pre-sowing seed treatment with the preparation Polimiksobakteryn and foliar nutrition with Micro Mineralis (corn) + “Stympo”, that is more in comparison with the control by 1.41, 1.32, 1.60 and 1.45 t/ha, respectively.
Key words: corn, hybrid, yield, microfertilizers, biostimulators, polymiksobacterynReferences
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