INFLUENCE OF MACRO- AND MICRO-FERTILIZERS ON MAIZE YIELD

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Visnyk LNAU: Agronomy 2021 №25: 162-166

INFLUENCE OF MACRO- AND MICRO-FERTILIZERS ON MAIZE YIELD

Shynkaruk L., PhD student
ORCID ID: 0000-0001-5635-1924
Institute of Agriculture of Carpathian Region National Academy of Agrarian Sciences

https://doi.org/10.31734/agronomy2021.01.162

Annotation

The field study was conducted during 2018-2020 on the research field of the Research and Production Center «Podillia» of Podolsk State Agrarian and Technical University. In the studies, a hybrid of LG 3258 (FAO 250) was used

The scheme of the experiment included studying the effectiveness of foliar fertilization in combination with urea 5 % and magnesium sulfate 5 % in the following phases of maize vegetation: 10 leaves, ejection of panicles, after flowering and grain filling on different fertilizer backgrounds: N80P40K60, N120P80K90 and N160P120K120.

According to the research results, it can be concluded that the increase in the level of mineral fertilizer and foliar fertilization has a positive effect on the weight of 1000 corn grains. The greatest influence on this indicator was made by foliar fertilization at complex application: micronutrient fertilizers + urea 5 % + magnesium sulfate 5 % in a phase after flowering. With the application of N80P40K60, the mass of 1000 seeds was 302 g, against the background of N120P80K90 – 319 g. The largest mass of 1000 grains was obtained with fertilizer N160P120K120 – 343 g, which was 36 g more than the control (without fertilization).

Fertilization of corn in the norm N80P40K60 allowed to form an average of 9.98 t/ha of corn grain. The application of foliar fertilization (micronutrient fertilizers + 5 % urea + 5 % magnesium sulfate) in the phase of 10 leaves provided an increase in yield by 0.93 t/ha, ie – 10.91 t/ha of grain. The increase in the rate of fertilizers contributed to an increase in yield by 1.23 t/ha without fertilizers (control) – 11.21 t/ha. Carrying out foliar fertilizer against this background in the phase of 10 leaves allowed obtaining 12.18 t/ha. The highest level of corn plant yield was formed for fertilizer N160P120K120 – 13.24 t/ha when applying foliar fertilizer with micronutrient fertilizers, urea 5 % and magnesium sulfate 5 % in the phase of 10 leaves, which is 1.05 t/ha more than in the version without fertilization the same background of fertilizers.

Key words

corn, fertilizers, micronutrient fertilizers, foliar fertilization, yield, weight of 1000 seeds

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