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1

Post-Harvest Siderates and Soil Hardness

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Mishchenko Y. , Kovalenko I. , Butenko A. , Danko Y. , Trotsenko V. , Masyk I. , Zakharchenko E. , Hotvianska A. , Kyrsanova G. , Datsko O.

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tom Vol. 23, iss. 3

54--63

EN

The results of researches of the perspective direction of solving the problem of growth of hardness of typical chernozem, which consisted in enrichment of the soil with fresh organic matter of postharvest greens, are presented. During the years of our research it was found that growing of post-harvest siderates contributed to a significant reduction in hardness of 0-30 cm soil layer. Among the studied siderates the lowest hardness of 0-30 cm soil layer was under crops of Raphanus sativum in all years of research - 10.9-16.8 kg/cm2. In the variants of potato growing without fertilizers was found close reverse relation between hardness and productive moisture reserves - r = -0.74. These dependences confirm positive effect of siderate Raphanus sativum as a factor of biological loosening of soil. After all, it was just the variant where reduction of productive moisture reserves had the smallest share of impact - 22% on the growth of soil hardness. At the same time, this share of influence increased to 27-41% on the background of other siderates and manure, and up to 54% in the control without application of organic fertilizers. The highest yield of potato tubers was obtained on the plots with the lowest soil hardness, where Raphanus sativum was used as a post-harvest siderate, followed by the variants with manure, Phacelia tanacetifolia and Fagopyrum esculentum.

2

Evaluation of the Efficiency of Energy Populus (Poplar) Growing Technology as an Alternative Source of Energy

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lys N. , Tkachuk N. , Butenko A. , Kozak M. , Polyvanyi A. , Kovalenko V. , Pylypenko V. , Andrukh S. , Livoshchenko Y. , Livoshchenko L.

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2023

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tom Vol. 24, nr 12

152--157

EN

After conducting research on energy Populus plants, it was discovered that biometric indicators and productivity were affected by both sowing density and nutritional background. The results showed that the tallest energy Populus shoots were observed in the group with a sowing density of 5600 pieces/ha, reaching heights of 11.1–11.6 m. The diameter of the central shoot in this variant was between 157 and 163 mm. The number of shoots was 1.8–2.5 pcs. on 1 plant and 21600–30000 pcs. on 1 hectare. The variant with a sowing density of 6700 units/ha yielded the most energy Populus biomass, specifically 178.3 tons of green mass and 100.9 tons of dry mass per hectare. Compared to the variant with a sowing density of 8300 units/ha, this represented an increase of 19.9 and 11.3 t/ha respectively, and an increase of 18.0 and 10.4 t/ha respectively, when compared to the variant with a sowing density of 5600 units/ha. The utilization of mineral fertilizers was shown to notably enhance productivity, as evidenced by an increase in green mass of 21.1–37.1 t/ha and an increase in dry mass of 11.2–20.6 t/ha across all trial variations. In the Precarpathian region, where sod podzolized soils are prevalent, the optimal sowing density of energy Populus biofuel was determined to be 6700 pcs./ha, with a yield of 110.990 kg/ha achieved through the application of mineral fertilizers. This approach generated an energy output of 1775.8 GJ/ha. In the case of a sowing density of 8300 units/ha and the use of mineral fertilizers, the energy output produced was 1576.9 GJ/ha, whereas sowing density of 5600 units/ha resulted in an energy output of 1591.0 GJ/ha. The introduction of mineral fertilizers led to an increase in energy output ranging from 12.3 to 22.6 GJ/ha for all experimental variants.

3

Dynamics of Productivity of Leguminous Plant Groups during Long-Term Use on Different Nutritional Backgrounds

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Karbivska U. , Butenko A. , Kozak M. , Filon V. , Bahorka M. , Yurchenko N. , Pshychenko O. , Kyrylchuk K. , Kharchenko S. , Kovalenko I.

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tom Vol. 24, nr 6

190--196

EN

Deterioration of ecological situation, increase of mineral fertilizer prices and their foreseen increase in recent years force us to look for the ways to reduce the rates of their application and alternative means of maintaining high productivity of sown fodder lands. Fertilization was and remains one of the decisive ways of increasing haymaking productivity, as well as increasing their economic efficiency. The productivity of leguminous grasses based on the study of agrotechnological measures of cultivation in the conditions of the Carpathian region is currently relevant. The studied species of perennial grasses, during the three-year cultivation, showed that the largest number of shoots was formed on the variant with horned sedge and was 1185–1201 pieces/m2. Medicago sativa had the smallest number of shoots (470 pics/m2, control (without fertilizers)). Trifolium pratense and Lotus corniculatus provided the highest productivity in relation to other species from 20 to 31%. Analysis of single–species crops productivity of perennial bean grasses by cuttings showed that the peculiarities obtained on average for all slopes, were also similar in each of two slopes. During the three–year use of the herbage on the yield from 1 ha of dry mass in both slopes, the herbage factor had the greatest influence, the share of which was 61–62%, while the share of the influence of fertilizer was 38–39%.

4

Competitiveness and Advantages of Camelina sativa on the Market of Oil Crops

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Hryhoriv Y. , Lyshenko M. , Butenko A. , Nechyporenko V. , Makarova V. , Mikulina M. , Bahorka M. , Tymchuk D. S. , Samoshkina I. , Torianyk I.

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2023

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tom Vol. 24, iss. 4

97--103

EN

The article presents the question of the effect of the effectiveness of various elements of cultivation technologies on the competitiveness of Camelina sativa and the profitability of its cultivation on acidic, low–fertility sod-podzolic soils. Fertilizers are one of the fast-acting and effective factors in increasing the yield of Camelina sativa. It was established that introduction of mineral fertilizers had a significant impact on competitiveness of Camelina sativa seeds. Dependence of productivity elements and yielding capacity on crops has been determined. It was established that spring cruciferous crops had different seed productivity. According to the results of conducted research, it was found that the highest seed yielding capacity among spring cruciferous crops had spring Brassica napus L., but the oil content in Camelina sativa seeds was 46.53%, which is 4.08% more than in Brassica napus L. Therefore, oil outcome from the yield of Brassica napus L. and Camelina sativa was almost the same.

5

The Influence of Elements of Technology and Soil-Climatic Factors on the Agrobiological Properties of Onobrychis Viciifolia

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Kovalenko V. , Tonkha O. , Fedorchuk M. , Butenko A. , Toryanik V. , Davydenko G. , Bordun R. , Kharchenko S. , Polyvanyi A.

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tom Vol. 25, iss. 5

179--190

EN

The significance of this study stems from the imperative to justify and advance agrobiological foundations aimed at enhancing the cultivation practices of Onobrychis viciifolia. There exists a compelling necessity to refine agronomic methodologies and streamline their comprehensive efficacy within the technological phases of cultivation. This study is aim to provide a critical analysis of scientific problem of substantiation of biological and organic foundations of the technology of Onobrychis viciifolia growing. Innovative technological interventions were formulated by extrapolating discerned patterns of influence pertaining to climatic and meteorological factors. Patterns governing the growth, development, and productivity formation of Onobrychis viciifolia were identified, and both the theoretical and practical principles of contemporary methods for cultivating perennial legumes were established. The chemical compound of aboveground biomass of Onobrychis viciifolia is varied depending on researched factors. Fertilization practically did not increase the productivity of Onobrychis viciifolia. The natural fertility of low-humus chernozem soil ensures the formation of a high, stable yield without fertilizing. This is the evidence that Onobrychis viciifolia compares favorably with other perennial legumes. Due to its biological characteristics, it is much more effective, especially in leveraging natural factors for the yield formation, i.e., it plays a significant role in the biologization of plant production, and in obtaining the most environmentally friendly, high–quality, yet cheap feed. The outcomes derived from the conducted research indicate that, under uniform soil conditions and varying fertilizer levels, the mowing height emerges as the predominant factor. The highest concentrations of nutrients within the overground biomass of Onobrychis viciifolia were noted at a cutting altitude of 11 centimeters. Concurrently, an elevation in crude protein and ash content was observed, accompanied by a concomitant reduction in the index of crude fiber.

6

Study of the Impact of Changes in the Acid-Base Buffering Capacity of Surface Sod-Podzolic Soils

100%

Hryhoriv Y. , Butenko A. , Solovei H. , Filon V. , Skydan M. , Kravchenko N. , Masyk I. , Zakharchenko E. , Tykhonova O. , Polyvanyi A.

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tom Vol. 25, nr 6

73--79

EN

The results of scientific research aimed at studying the impact of land use on the acid–base buffering capacity of gleyed sod–podzolic soils in the Carpathian region were analyzed. The transformation of these indicators was investigated using a comprehensive approach that encompasses the influence of various factors, such as agrotechnological methods and atmospheric precipitation, on the acidity and alkalinity parameters of soil solution. The research results confirm a significant influence of these factors on the acid–base characteristics, emphasizing the need for the development of a scientifically grounded approach to managing fertility and stability of the soil environment in agricultural ecosystems of the Carpathians. The study opens the perspectives for optimizing agrotechnologies and developing effective measures for the rational use of soil resources in this region.