Agrotechnical measures for increasing the crop yield of sunflower in conditions of the Steppe of Ukraine

Tkalich, I. D.; Gyrka, A. D.; Bochevar, O. V.; Tkalich, Yu. I.

doi:10.31867/2523-4544-2-1-44-52

Cited by 14 publications

(11 citation statements)

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“…Вміст жиру в насінні соняшнику в роки вирощування залежно від кількості обробок посіву рослин у середньому по всіх препаратах, % Уразливість рослин на певних фазах росту, дефіцит елементів живлення в поєднанні з несприятливими погодними явищами може призвести до значного зниження врожайності та погіршення якості. Тому оптимізація елементів технології вирощування соняшнику відповідно до особливостей фаз органогенезу культури та кліматичних особливостей, у тому числі і зони Південного Степу України, сприяє більш повному використанню рослинами соняшнику всіх умов життєдіяльності (Vozhegova et al, 2013;Melnik, 2018;Tkalich et al, 2018).…”

Section: обговоренняunclassified

Formation of Sunflower Productivity Under the Influence of Foliar Top Dressing by Modern Biopreparations in the Conditions of the Southern Steppe of Ukraine

Gamajunova

Volosyuk

2020

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The results of research with the culture of sunflower hybrid Dragan, performed du-ring 2016–2018 in the experimental farm of State Enterprise “Seleni Koshary” (“Green Barns”), located in the Pervomaiskyi District of Mykolaiv Region. Soil kind – southern chernozem with a content of 3.3–3.5% of humus in the layer of 0-30 cm and an average supply of mobile forms of nitrogen, phosphorus and potassium. Sunflower was placed after winter wheat. Under the primary (base) tillage, N16P16K16 was applied as the background. And in the main growing seasons foliar top dressing was carried out with modern preparations: Retardine, Fresh Energy and Fresh Flo-rida. The years of sunflower growing were typical for the Steppe Zone of Ukraine, but differed in the amount of precipitation. The main trends, regional features of sunflower growing, formation of its yielding capacity and seed quality are revealed. The importance of nutrition optimization by selecting micronutrients for the growth and development of sunflower for the benefits of foliar top dressing as a way to overcome the deficit in nutritive elements. The results of researches of influence of foliar top dressing in the basic periods of vegetation on productivity of sunflower are analyzed and stated. The importance of modern preparations in increasing the yielding capacity, quality and conditional collection (output) of oil per unit area has been studied. It is established that the yielding capacity of sunflower grain from foliar top dressing with modern preparations increases from 8.3 to 39.3% relative to control. Its highest level was formed during the treatment of plants twice during the growing season – in the phase of 3–4 pairs of leaves and the formation of anthodium (3.56 t/ha, in the control 2.76 t/ha). The highest yielding capacity is obtained in 2016, and the lowest – in the most unfavorable rainfall in 2017, when the increase in yields from foliar top dressing was up to 63.6%. This indicates the ability of plants under the influence of the studied biological preparations to withstand adverse conditions, in particular, high temperatures and drought during the growing season. In 2016, the increase in yield in the most optimal variants of nutrition reached 38.3%, and in 2018 – 29.6%. The fat content in the grain (kernels) of sunflower in more favorable years for moisture, compared to 2017, was also higher, but with the number of treatments of crops in contrast to the level of yield, this index did not increase. At the same time, the conditional collection (output) of oil from one hectare increased, which is due to the level of the formed yield. Thus, in the control the average indicator for 2016–2018 was 1.17t/ha, for the treatment of plants in the phase of 3–4 pairs of leaves – 1.40 t/ha, budding – 1.59, and in both phases – on average for all preparations 1.64 t/ha of oil. The obtained results gave grounds to substantiate a set of measures related to the optimization of sunflower plant nutrition through the use of modern growth regulators to obtain a stable grain yielding capacity and conditional oil output per unit area

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Section: обговоренняunclassified

Formation of Sunflower Productivity Under the Influence of Foliar Top Dressing by Modern Biopreparations in the Conditions of the Southern Steppe of Ukraine

Gamajunova

Volosyuk

2020

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“…The source and sink spheres of the plant are connected by a system of direct and feedback (hormonal, trophic), which provides mutual correction of growth and photosynthesis. The processes of photosynthesis are considered as a source, and the processes of growth, accumulation of reserve substances and zones of active metabolism during autotrophic nutrition are considered as a sink [37,73], or interaction between reserve organs and growth processes at the heterotrophic stage of seedling development [35,46]. It is also known that different types of reserve substances play the role of a buffer between photosynthesis as source of assimilates and the growth of the structural substance of vegetative, storage and reproductive organs as sink of assimilates.…”

Section: Introductionmentioning

confidence: 99%

“…Using synthetic growth-regulating compounds, it is necessary to take into account the species specificity of the crop, varietal differences, phases of plant development and soil-climatic conditions [37,62]. The efficiency of the use of growth regulators and environmental impact on the environment is determined by compliance with the regulations of drug administration [33,73]. Today, new generation of plant growth regulators have been created, which are characterized by high efficiency and environmental safety [60,70,71].…”

Section: Introductionmentioning

confidence: 99%

Regulation of morphogenesis and process of agricultural crop production by means of phytohormone analogues and modifiers of their action

Kuryata¹,

Кур’ята²,

Shataliuk³

et al. 2021

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The monograph examines the literature and experimental data on the influence of synthetic growth regulators with different mechanisms of physiological action on growth processes, morphogenesis, formation and functioning of the source-sink system of crops in connection with their productivity. For plant physiologists, agronomists, teachers, postgraduate students and students of biological specialties.

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“…Распространение новы х систем основной обработки почвы в технологиях возделывания пропашных культур напрямую связано с ресурсо-и энергосбережением [1,2]. Известны научные публикации, разносторонне оценивающие освоение различных систем основной обработки почвы под пропашные культуры, включая агрофизические и экономические аспекты [3,4,5]. В связи с этим в Ставропольском крае была проведена определенная работа по оценке приоритетности размещения пропашных культур в отдельных почвенно-климатических зонах [6].…”

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Mohar in Afterharvest Sowing on Ordinary Chernozem in the Central Zone of Krasnodar Region

Polous

Osaulenko²

2021

Vestnik of Kazan State Agrarian University

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The need to introduce new progressive technologies for sunflower cultivation in Stavropol Territory is based on an analysis of trends in the development of arable land for this crop over the last ten-year period from 2010 to 2020. A significant annual increase in the areas under sunflower in the arid zone by an average of 3.9 thousand hectares and a tendency for this indicator to increase in zones of unstable and sufficient moisture by 0.55 and 1.0 thousand hectares have been established. The purpose of the research is to evaluate the effectiveness of the modernized soil cultivation system in the Strip-till technology for sunflower in the unstable moisture zone of the Stavropol Territory on the southern chernozem, poorly humified in comparison with the traditionally adopted cultivation system. A distinctive feature of the new strip-till soil cultivation system is continuous disc stubble cultivation with the Catros harrow 8 - 10 cm instead of leaving untreated stubble strips. In the process of research, using the method of the theory of dimensions, an inverse power-law dependence was derived, showing that the smaller the weighted average diameter of the aggregates D, the higher the soil density P, taking into account the correction factor C for a certain type of soil. It was found that under relatively favorable moisture conditions in 2019 and in the dry season of 2020, spring moisture accumulation under strip-till was higher than under traditional ones by 12 and 8 mm, respectively. Cultivation of sunflower, with preliminary disc processing of stubble and the formation of strips with slots for sowing crops, following the Strip-till technology, is more effective in comparison with the traditionally adopted technology in the southeast of the Stavropol Territory, since an average increase in sunflower yields over the years by 0.20 t/ha with a higher profitability of 31%

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Agrotechnical measures for increasing the crop yield of sunflower in conditions of the Steppe of Ukraine

Cited by 14 publications

References 0 publications

Formation of Sunflower Productivity Under the Influence of Foliar Top Dressing by Modern Biopreparations in the Conditions of the Southern Steppe of Ukraine

Formation of Sunflower Productivity Under the Influence of Foliar Top Dressing by Modern Biopreparations in the Conditions of the Southern Steppe of Ukraine

Regulation of morphogenesis and process of agricultural crop production by means of phytohormone analogues and modifiers of their action

Mohar in Afterharvest Sowing on Ordinary Chernozem in the Central Zone of Krasnodar Region

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