Abstract
Experimental researches were carried out in the experimental field of the laboratory of agrobiological resources of spring cereal and leguminous crops of the Erastivka experimental station of the SI The Institute of Grain Crops of the NAAS of Ukraine (SI IGC NAAN) of the Piatyhatky district of the Dnipropetrovsk region during 2016–2018 in grain-fallow-row-crop rotation after spring barley as a predecessor. Agricultural technology in experiments was common for the zone. The trial establishment, carrying out an experimental studies, records and observations, and sampling were carried out in accordance with the methodology of field experiment and the generally accepted methodical recommendations of the SI IGC NAAN. Weather conditions during the 2016–2018 for humidity and air temperature were moderately favorable for the germination of the seeds, growth and development of sunflower plants. It was established that, depending on the variant of preparation use, compared to the control, the height of sunflower plants increased by 5.0–12.9 cm, the diameter of the capitulum – by 2.8–4.1 cm, the weight of seeds from the capitulum – by 2.3–4 , 1 g, weight of 1000 seeds – 6.3–8.7 g. The best results of indicators of growth intensity, development and formation the elements of yield structure of sunflower hybrid Jason are received in a variant with foliar feeding of crops in a phase of 3–4 pairs of leaves by preparation Humivit Profi, 0.3 l/ha, which provided an increase in sunflower seed yield relative to the control of 0.39 t/ha. Twice foliar fertilization of sunflower crops: in the phase of 3–4 pairs of leaves – Humivit Extra and in the bud stage – Humivit Amino with application rate 0.2 l/ha of each increased the yield of sunflower seeds relative to the control by 0.23 t/ha. At pre-sowing treatment of sunflower seeds with Humivit Profi, 0.3 l/ha, sunflower yield was 2.23 t/ha, which exceeded the control by 0.16 t/ha. Key words: sunflower, humic preparations, plant growth and development, elements of crop yield structure, crop yield
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Claims 7
Claim · model-written summary
Preparations increased sunflower plant height by 5.0–12.9 cm versus control.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- variant of preparation usee0
- Outcome
- height of sunflower plantse0
- Direction
- increasede0
- Value
- 5.0–12.9 cme0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“depending on the variant of preparation use, compared to the control, the height of sunflower plants increased by 5.0–12.9 cm”
Claim · model-written summary
Preparations increased capitulum diameter by 2.8–4.1 cm.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Outcome
- diameter of the capitulume0
- Direction
- increaseinferrede0
- Value
- 2.8–4.1 cme0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the diameter of the capitulum – by 2.8–4.1 cm”
t0“SUNFLOWER”
Claim · model-written summary
Preparations increased seed weight per capitulum by 2.3–4 , 1 g.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Outcome
- weight of seeds from the capitulume0
- Direction
- increaseinferrede0
- Value
- 2.3–4 , 1 ge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the weight of seeds from the capitulum – by 2.3–4 , 1 g”
t0“SUNFLOWER”
Claim · model-written summary
Preparations increased 1000-seed weight by 6.3–8.7 g.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Outcome
- weight of 1000 seedse0
- Direction
- increaseinferrede0
- Value
- 6.3–8.7 ge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“weight of 1000 seeds – 6.3–8.7 g”
t0“SUNFLOWER”
Claim · model-written summary
Foliar Humivit Profi increased Jason sunflower seed yield by 0.39 t/ha versus control.
- Taxon
- sunflower
Helianthus annuuse0 - Material
- Jasone0
- Treatment
- foliar feeding of crops in a phase of 3–4 pairs of leaves by preparation Humivit Profi, 0.3 l/hae0
- Outcome
- sunflower seed yielde0
- Direction
- increasee0
- Value
- 0.39 t/hae0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“sunflower hybrid Jason are received in a variant with foliar feeding of crops in a phase of 3–4 pairs of leaves by preparation Humivit Profi, 0.3 l/ha, which provided an increase in sunflower seed yield relative to the control of 0.39 t/ha”
Claim · model-written summary
Twice foliar fertilization increased sunflower seed yield by 0.23 t/ha versus control.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- Twice foliar fertilization of sunflower crops: in the phase of 3–4 pairs of leaves – Humivit Extra and in the bud stage – Humivit Amino with application rate 0.2 l/ha of eache0
- Outcome
- yield of sunflower seedse0
- Direction
- increasede0
- Value
- 0.23 t/hae0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Twice foliar fertilization of sunflower crops: in the phase of 3–4 pairs of leaves – Humivit Extra and in the bud stage – Humivit Amino with application rate 0.2 l/ha of each increased the yield of sunflower seeds relative to the control by 0.23 t/ha”
Claim · model-written summary
Presowing Humivit Profi produced 2.23 t/ha sunflower yield, 0.16 t/ha above control.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- pre-sowing treatment of sunflower seeds with Humivit Profi, 0.3 l/hae0
- Outcome
- sunflower yielde0
- Direction
- exceedede0
- Value
- 2.23 t/hae0
- Qualifier
- 0.16 t/hae0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“At pre-sowing treatment of sunflower seeds with Humivit Profi, 0.3 l/ha, sunflower yield was 2.23 t/ha, which exceeded the control by 0.16 t/ha”
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