Uman NUH | today: 05/19/2019

Influence of “ACTIVE-HARVEST” microfertilizer application on growth, development and yield of maize plants

Author(s) Suhomud O.G., Candidate of Agricultural Science, Associate Professor of Department of Plant Protection and Quarantine, Uman National University of Horticulture, Ukraine
Adamenko D.M., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine
Kravets І.S., Candidate of Agricultural Science, , Uman National University of Horticulture, Ukraine
Category The Agronomy
year 2019 issue Випуск 94 Частина 1
pages 156-164 index UDK 631.559:631.8.633.15(292.485)
DOI 10.31395/2415-8240-2019-94-1-156-164 (Link)
Abstract Numerous scientific studies have established the positive effect of microelements on the growth and development of maize plants. But despite the considerable efficiency of microfertilizers they are not sufficiently used in production. The main reason is the imperfect technology of application, in particular, the confinement to the vegetative stage, the calculation of the need for elements for specific conditions. The purpose of the research is to study the effectiveness of schemes of application and influence of “Active-Harvest”microfertilizers on the vegetative stage duration, biometric indices and crop capacity of maize. As a result of the research the following was established: the length of the vegetative stage of maize varied depending on themicrofertilizersapplication. Until the 5thleaf formation the differences were not significant. Starting from the 5‒10 leaves stage, the stage periodincreased by 2‒5 days, depending on the scheme ofmicrofertilizersapplication. The highest effect was observed in the options where such microfertilizers as Macro – 1/ha, Prime – 0.5 l/ha, Zinc – 2 l/ha, Bor – 0.3 l/ha were applied and also in the options between the stages “5-10 leaves”– “ear emergence”such mictofertilizers as Zlak –1.5‒2.0 l/ha, Zinc – 1.0‒2.0 l/ha, Bor– 0.5 l/ha, Polymyx – 0.5 l/ha were applied. The flowering stage lasted longer in the options in which the fertilizers Kremnii 0.5‒1.0 l/ha, Amino 1.0 l/ha were applied during the ear emergence stage, and additionally Kremnii at a dose of 0.5 l/ha before flowering. The stress factors for plants (drought, frost or period after them) less influenced the height of plants and the leaf-area duration in the options where Prime –1.0 l/ha, Zinc – 1.0 l/ha, Macro – 1.0 l/ha and Amino –0.5 l/ha were applied. The most noticeable was the difference in indices starting from the ear emergence stage. When applying such agents asZlak–1.0‒2.0 l/ha, Zinc –1.0‒2.0 l/ha, Bor–0.5 l/ha and Polymix– 0.5 l/ha the plant height was approximately 40 cm higher than in the control option. The application of“Active-Harvest”microfertilizers in all schemes of use increased the yields by 0.26 ‒1.05 tons/ ha compared to control. The highest yield was obtained in the options where during the vegetation such microfertilizers as Macro – 1.0 l/ha, Amino – 0.5‒1.0 l/ha, Zinc – 1.0-2.0 l/ha, Bor – 0.5 l/ha, Zlak – 1.0‒1.5 l/ha, Kremnii – 0.5‒1.0 l/ha, Zinc – 1.0 l/ha and Polymyx – 0.5 l/ha were applied. The yield increase was at the level of 0.95–1.05 t/ha. The weight of 1000 seeds was the highest under the application of microfertilizerKremnii (0.5‒1 l/ha).
Key words corn, microfertilizer, fertilizer scheme, growth and development phases, productivity.
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