Agrotechnical Measures Research Articles

Effect of Crop Rotation on Biological Characteristics and Economic Indicators of Winter Wheat in Different Agroecological Conditions

The article deals with observations on plants and agrotechnical measures in accordance with the recommendations on the cultivation of plants in short rotation alternating and continuous crops consisting of cereal and inter-row cultivated plants under irrigation conditions. It is known that realizing the potential productivity of wheat in favorable soil and climate conditions is possible by applying high-level agrotechnics in various agro-ecological conditions. The highest indicators of spike elements of the Gobustan variety of wheat, which is the main source of research, were obtained in the crop rotation variant. In Absheron YTT, the spike length is 9.1 cm, the number of spikes is 17.4, the number of seeds is 43, and the mass of the seed is 1.62 g. The mass of 1000 grains are 41.8 g. 9.9 cm according to the mentioned indicators in Tarter BTS; 19.9 units; 50 units; It was determined to be 1.83 g: 40.9 g, which is 0.6-0.9 cm in regions, respectively, compared to continuous cultivation; 2.3-2.8 pieces; 4-3 units; An increase of 0.11-0.16 g and 3.1-3.4 g was obtained. The number of beans per plant in Absheron AEF is 45.6, the number of seeds is 106.3, the mass of seeds is 12.5 g, and the mass of 1000 seeds is 118.4 g. In Tarter RES, one plant has 52.5 beans, 128 grains, the mass of a grain is 13.9 g, and the mass of 1000 g of grain is 110.3 g. These indicators 4.0-4.3 units according to regions compared to continuous cultivation; 9.0-12.3 units; 1.2-1.3 g and 7.4-3.2 g indicate an increase. Thus, the crop rotation in 2 different agroecological conditions after the soybean predecessor had a significant effect on the spike and economic indicators of the winter wheat crop. The highest indicators of spike elements of the winter wheat Gobustan variety were obtained in the crop rotation variant. According to the results of the research, the highest grain yield in the regions was obtained in the mentioned option. Thus, in this variant, the grain yield of winter wheat per hectare was 40.4 cwt in Absheron AEF and 48.4 cwt in Tartar RES.

Agroecological aspects of nutrients absorption by industrial crops in the conditions of Odesa Region

Modern agroindustrial activities that are focused on intensive methods of agricultural production require a deep understanding of the processes occurring in agroecosystems. Odesa Region is characterised by specific agroclimatic conditions and soil cover features making the study of this issue higly relevant. Intensive use of industrial crops requires knowledge about absorption and removal of biogenic elements such as nitrogen, phosphorus, and potassium. The importance of this research is determined by the need to reveal the dynamics of biogenic elements absorption by industrial crops in the conditions of Odesa Region, taking into account its agroclimatic and soil characteristics. The results of this research are intended to contribute to development of scientifically grounded recommendations for farmers and agricultural enterprises regarding effective management of agroecosystems. This will not only increase productivity of industrial crops but also ensure environmental sustainability of agricultural practices. Identifying the optimal conditions for absorption and removal of biogenic elements will contribute to improvement of soil fertility and preservation of its productivity in a long-term perspective. The conclusions and recommendations obtained during the research can be used to improve agronomic practices, reduce environmental impact, and increase efficiency of agricultural production. Considering current trends of agricultural development, it is necessary to pay special attention to optimization of agrotechnical measures allowing reduction of expenses for fertilizers and improvement of their efficiency. Introduction of new technologies is another important aspect to be considered. It will allow more precise determination of plants' nutrient needs and help to provide them with nutrients according to their growth phases. In addition, it is necessary to consider the interaction between different nutrient elements that can affect their availability and plants' ability to assimilate them.

"ITAMEC 1.8% Em.K” in Cotton Plant Determination of Biological Effectiveness of Acaricide Against Tetranychus Urticae Pest

Cotton is a crucial crop globally, particularly in Uzbekistan, where its high-quality fibers hold a significant market position. However, cotton faces threats from pests, notably Tetranychus urticae, which can cause up to 40% crop loss if not controlled during the germination period. Despite the use of various agrotechnical measures, effective pest management remains a challenge. This study investigates the acaricide ITAMEC 1.8% em.c. as a control measure against Tetranychus urticae. Field trials were conducted to evaluate the application rates, test results, and biological effectiveness of the drug. Findings suggest that ITAMEC 1.8% em.c. provides significant pest control, offering potential improvements in cotton yield and pest management strategies.

The Influence of Milling Granulation on The Proportion of Fermentable and Non-Fermentable Ingredients in Mash Obtained from Mixed Endosperm Wheat

The use of purpose-selected wheat in brewing is limited because it is either not suitable for the application of usual agrotechnical measures or, more often, is not adapted to specific climatic conditions. As unmalted wheat in brewing can cause process problems and problems with the quality composition of mash/wort and consequently beer, by using the appropriate type and variety, but also by adjusting the malting process, these problems can be completely avoided or significantly reduced at the start. Two varieties were selected for the research, which in previous research showed good brewing/malting properties and which have significantly different starting values for the share of total protein (TP) in the grain. The goal of this research was to determine the effect of grain milling granulation on the quality of mash obtained from a hard type of wheat, i.e., the changes in the fermentable and non-fermentable extract ratio during mashing. Varieties with higher and lower initial contents of total protein (TP) in the grain were tested. It was found that regardless of the initial difference in TP concentration, the concentrations of total soluble proteins (TSP) and high molecular protein fraction (HMW N) are similar for varieties with higher and lower initial TP and that the difference in initial TP concentrations is shown as a difference in the concentration of insoluble protein fractions, which are eliminated during fermentation. By increasing the milling granulation in both kinds of wheat, there is a significant increase in the medium molecular protein fraction (MMW N), which is more pronounced in wheat with a lower starting concentration of TP, even though the starting concentrations of TSP in fine (Ø 0.2 mm) and the superfine milling (Ø < 0.2 mm) were similar. A significant drop in fermentability at the superfine granulation of the grain was noted.

Soil surface erosion susceptibility analysis using the USLE model. Case study: Bran - Dragoslavele Corridor, Romania

The present study falls within the scope of the analysis of the morphodynamic potential of the Bran - Dragoslavele Corridor (Romania), a low mountain area, favorable to erosion processes due to the high energy of the relief, diversified lithology, tectonic complexity, and due to the variation in the energy of atmospheric risk phenomena. For the expansion of pastoral agricultural areas and those intended for human settlements, the deforestation of the last 3-4 centuries deprived the slopes and the soil of the protective forest cover on an area of 55.44%, favoring the amplification of the action of natural morphodynamic agents. In this context, the quantitative and spatial assessment of sheet erosion, expressed as the average annual rate of surface soil erosion (measured in tons hectare–1) was approached by applying the calculation model implemented in the GIS environment by using the universal soil loss equation (USLE). Implementation of the model was realized through the spatial delimitation of the potential erosion and the rendering by susceptibility classes of the quantitative results which reveal the fact that the largest surface of the studied mountain unit (91.68%) presents tolerable values, of 0-1.5 t ha–1 year–1. The highest values, over 4 t ha–1 year–1 (1.24%), are characteristic of the calcareous areas belonging to the many sectors of the gorges with discontinuous vegetation, as well as the limestone exploitation area from Mateiaș mountain. The quantitative knowledge and spatial distribution of surface erosion becomes important for communities and local authorities, interested in the planning and management of the implementation of some agrotechnical measures to improve the quality and productivity of soils or to prevent and restrict erosion processes with a tendency to expand areally and in depth.

CORN FOR GRAIN IN CONTINUOUS GROWING UNDER DIFFERENT FERTILIZER SYSTEMS AND WEATHER CONDITIONS

On the experimental field of the Poltava State Agricultural Experimental Station named after M. I. Vavilov of the The Institute of Pig Breeding and Agro-Industrial Production of the National Academy of Agrarian Sciences of Ukraine, during 1984-2023, on typical chernozem in conditions of unstable moisture of the Left-Bank Forest-Steppe, were conducted researches to study the continuous growing of corn for grain and its productivity. Precipitation is the leading factor in providing corn with available moisture in this region. Different hydrothermal conditions, especially the amount of moisture during the agricultural year and the vegetation, led to sharp fluctuations in grain yield over the years, which occurred in a wide range. The analysis of the average values ​​of corn productivity for each 10 consecutive years of conducting these studies made it possible to establish that during the first decade of observations, the dynamics of this indicator in subsequent periods took place in the paradigm of its growth, albeit at a different level. Maize grain yield and its correlation with different weather conditions and fertilization systems, regardless of the replacement of maize hybrids, ranged from direct to inverse and from low to high. Long-term application of different doses and ratios of organic and mineral fertilizers contributed to changes in both quantitative and qualitative indicators of humus in the soil. It was determined that the content of total carbon in the fertilized areas was higher by 3,0 and 3,3 relative percent compared to the unfertilized ones. Special attention was paid to the ratio between humic and fulvic acids, which directly depends on the fertilization system. The different effect of this agrotechnical measure on the amount of humus accumulation in the soil is shown. Thus, in areas without fertilizers (control), its accumulation occurs at the level of an average indicator and a weak effect of organic acids on the mineral part of the soil, while under the organo-mineral fertilization system, this process takes place intensively, and the mineral part remains almost unchanged.

Economic and energy efficiency of resource-saving technology for switchgrass cultivation

Purpose. The study aimed to compare the efficiency of the resource-saving technology with the conventional technology for switchgrass cultivation using the developed methodology for assessing the economic and energy efficiency. Methodology / approach. The study used general and special methods, including the methodology of scientific research in agronomy, laboratory determination of dry matter content in biomass, quantitative-weight analysis to establish crop yield, and the authors’ improved methodology for assessing economic and energy efficiency. The research results were statistically processed using variance and comparative analysis. Results. The results of the research on the use of resource-saving cultivation technology in comparison with conventional technology show an increase in switchgrass biomass yield from 14.6 to 15.7 t/ha, an increase in economic efficiency with profitability growth from 73.8 to 79.0 %, and an increase in energy efficiency with a growth of the energy efficiency coefficient by 0.7 – from 4 to 4.7 (average level of energy efficiency) when applying a specific complex of agrotechnical measures. When using resource-saving technology, the average full cost of cultivating switchgrass for six years is 8305.6 UAH/ha, compared to 7952.8 UAH/ha with conventional technology. However, resource-saving technology generates an average sales revenue of 14867.5 UAH/t, which is 1045 UAH/t more than conventional technology (13822.5 UAH/t). Originality / scientific novelty. For the first time, a field experiment was conducted to compare switchgrass cultivation using resource-saving and conventional technologies. The authors have developed a methodology to assess the economic and energy efficiency of cultivating switchgrass. The results indicate that the efficiency of switchgrass biomass production is influenced by improved cultivation technology. The authors have developed a three-dimensional econometric model that demonstrates how the profitability level depends on the chosen switchgrass cultivation technology. Practical value / implications. The research results have practical significance as they have led to the development of a methodology and evaluate the economic and energy efficiency of switchgrass cultivation. These results will be useful for agrarian enterprises to save resources.

The Effect of Fertilizers and Growth Regulators on the Productivity of Safflower (Carthamus tinctorius L.) in the Dry Climate of Russia

Background: Safflower is an oilseed crop capable of forming seeds in extreme conditions, so it can be used as an alternative to sunflower, because their growing technologies are similar. Increasing the yield of safflower seeds can be achieved intensively using agrochemicals. The proposed research results provide information on the use of mineral, micro fertilizers and growth regulators. Methods: Research was carried out in the dry steppe zone of chestnut soils. In the spirit-factor experiment, which was located on a field with an area of 300 m2, in triplicate, using two sorts of safflower. Mineral fertilizers were applied to the soil during sowing and by foliar treatment during the “budding” phase. The obtained yield results were processed by analysis of variance. Result: As a result of the research, elite safflower seeds were obtained using one of the experimental options Ultamag Bor 30 g + Biostim Growth 30 g/10 liters of water of the Alexandrite variety with a yield of 1.8 t/ha with the highest profitability of their production of 414.2%. Analysis of variance of the yield data from the experiment showed that 87% of the yield of safflower seeds depended on the use of mineral fertilizers, 0.62% on the plant variety and agro technical measures for growing safflower plants-11.8%.

LEGAL PROVISION OF SOIL (LAND) MELIORATION IN UKRAINE

Melioration is a powerful factor affecting the soil and soil cover, which changes the direction, periodicity and speed of soil processes and regimes, and leads to a gradual transformation of soils. The evolution of soils under the influence of various types of land reclamation is characterized by varying degrees of changes in chemical, physico-chemical, and agrophysical properties, and in the case of the complex application of various types of land reclamation, high agricultural culture acquires a positive direction, improving soil properties. In the case of a violation of the comprehensive implementation of meliorational effects and agrotechnical measures for the cultivation of agricultural crops, low resource provision, a negative balance of organic substances and an imbalance of macro- and microelements can be formed in the soil. Another determining factor in the change in the purpose of melioration effects on the soil is the transition to the ecological imperative of the agrosphere. This direction is the strategic goal of land reclamation in the foreseeable future, which is of great importance for Ukraine, as the world's leading agrarian state. Solving the problem of investments in the field of soil meioration, which arose due to the disorganization of the legal management of soil and land resources in the conditions of increased natural and anthropogenic loads, global climate changes, violation of the structural and landscape organization of the territory and technical requirements in the system of balanced land use, is gaining increasing relevance, perspective and public demand A feature of law-making practice in Ukraine are numerous environmental laws and departmental regulations, but their implementation is too slow. One of the areas of implementation of the provisions and requirements established by regulatory legal acts in the field of soil reclamation is the development of a regulatory and methodological framework in this field. To ensure the unity and effectiveness of the implementation of regulatory documents at different levels, it is necessary to develop and approve lists of documents, in particular standards, which, in the case of voluntary application, are proof of compliance with the requirements of the current legislation on land reclamation, their use and monitoring. Along with the existence of existing laws, it is necessary to adopt already developed draft laws "On soils and their fertility", "On soil monitoring", "On the removal of degraded and unproductive lands for conservation", "On soil insurance". The Law of Ukraine "On Land Leasing" needs to be revised, which needs to be supplemented in the direction of soil protection obligations on the part of tenants by increasing the minimum lease terms and improving the economic mechanism for stimulating the sustainable use and management of land resources, including their protection from degradation. Keywords: soils, melioration, soil protection, legal support.

Sunflower Broomrape (Orobanche cumana Wallr.) and Weeds in Sunflower Crops with Minimized Tillage in a Steppe Ecotype Crop Rotation

Abstract An important reserve for increasing the productivity of agricultural production is a scientifically based crop structure and the use of rational crop rotations, which implement the optimal ratio of agroecological standards. The aim of the research was to determine the influence of elements of agrotechnical measures, in particular, the saturation of crop rotations with sunflower, soil tillage system on the number and species composition of various agrobiological groups of weeds in sunflower crops, including the weed parasite sunflower broomrape (Orobanche cumana Wallr.). Weed control measures and the spread of the parasitic weed sunflower broomrape in sunflower crops have been carried out according to the methods generally accepted in agriculture and weed science. The scheme of the experiment included crop rotations with saturation in the structure of sunflower sowing of 12.5, 20, 25, 33.3, 50, 100% and three systems of basic tillage: moldboard plowing, disc tillage, and no-tillage. As a result of the research, it has been found that the systems of disc tillage and no-tillage cause an increase in the number of weeds in sunflower crops compared to the moldboard plowing by 1.3–1.5 times. On average, over the years of research, the abundance of weeds in the plots when using disk tools was 10.4–15.1 pcs./m2, moldboard plowing was 7.1–12.4 pcs./m2, and before harvesting was 2.6–5.2 and 4.1–12.4 pcs./m2. The highest degree of sunflower broomrape damage has been observed in 2-fields crop rotation (winter wheat—sunflower) and permanent sunflower cultivation, as 16.0–32.4% of affected sunflower plants have been observed here. The intensity of sunflower broomrape damage to sunflower plants was higher in the moldboard plowing system and amounted to 1.2–8.3 pcs./per plant, which exceeded disc tillage and no-tillage by 1.2–1.6 times. The maximum seed yield of 2.92–2.95 t/ha has been obtained in 8- and 5-fields rotations with the use of moldboard plowing. The lowest yields of sunflower seeds were in short-rotation crop rotations with a sunflower saturation of 50% in the structure of sown areas and permanent cultivation and amounted to: moldboard plowing—1.75–2.21 t/ha, disk tillage—1.57–2.01 t/ha, and no-tillage—1.49–1.95 t/ha. Given the urgency of supplying the global market with sunflower oil, in the future it is necessary to increase the concentration of sunflower in the structure of sown areas to 30-40% through the system of basic tillage, selection of resistant hybrids, and use of herbicides.

The impact of military operations in 2022 on the wind-erosion hazard of the Ukrainian right bank

Wind erosion is caused by strong winds blowing continuously in one direction over unprotected vegetation or plant debris on the soil surface. It can be controlled by plant barriers such as forest belts. The military actions in 2022 as a result of Russian aggression dramatically changed the state of the existing network of forest belts. It was in the forest belts that the defense lines were built, which were subjected to the most intense artillery and rocket attacks and were the target of assault operations. Remote sensing methods, in particular Sentinel-2 satellite images for 2021 and 2022, were used to analyze changes in the condition of forest belts during hostilities in two research sites in Kherson and Mykolaiv regions. The Enhanced Vegetation Index (EVI) was used to determine the degree of forest degradation. The EVI index, in addition to the chlorophyll content of leaves, also responds to structural variations in the tree canopy, tree crown shape, and leaf area index. The index also takes into account the transmission of light through the tree canopy and the effect of atmospheric aerosols on brightness in the red region of the spectrum. In other words, the EVI index is very informative in terms of assessing the condition of forest belts as erosion control vegetation barriers. Studies have shown that most of the artificial forest plantations resulting from the hostilities in the spring and summer of 2022 can either perform their soil protection functions to a limited extent or are not able to counteract potential wind erosion at all. The loss of anti-erosion properties of forest belts as a result of military degradation leads to a significant increase in wind and erosion hazards. Calculations based on the WEQ methodology show that the potential volume of soil losses due to wind erosion from fields already unprotected by forest belts, plowed and without vegetation cover, increases from 3.9–4.7 t/ha per year to 7.0–8.4 t/ha per year, which often exceeds the permissible erosion rates and can lead to soil degradation and a decrease in soil fertility in the future. Post-war reforestation will take a long time, and therefore it is necessary to use fairly simple agrotechnical measures against wind erosion, in particular “conservation” tillage technologies, including no-till, which can stabilize the situation with wind-erosion soil degradation and fertility for a certain period of time.

Organic Agriculture in Focus: Exploring Serbian Producers’ Views on the Common Agricultural Policy and the National Agrarian Policy

Organic agriculture represents an alternative system of agricultural production that is included in the so-called sustainable agricultural practices. Development strategies in almost all countries today highlight the problem of environmental degradation, which is partly caused by the application of agrotechnical measures used in conventional agriculture. Consequently, organic production is gaining more and more importance, affecting the trend of its development. Considering the status of the Republic of Serbia as a candidate country for the European Union, it is of particular importance to understand the Common Agricultural Policy (CAP) of the EU and the position that organic producers and production have. The aim of this research was to analyze the attitudes of organic producers towards the CAP and the agrarian policy of the Republic of Serbia and their expectations following the Republic of Serbia’s entry into the EU. Statistical data processing involved descriptive statistical analysis followed by binary logistic regression. The results of the research showed that organic producers are not sufficiently familiar with the CAP, they believe that the agricultural policy of the Republic of Serbia is not favorable for organic producers and that their situation will not change significantly with entry into the EU, but that the position of organic production in the EU is better in comparison to that of the Republic of Serbia. In conclusion, the authors state that such attitudes and thoughts of organic producers are a limiting factor in the further development of organic agriculture and that it is necessary to work on them through continuous measures developed by competent ministries, local self-governments and advisory services.

Проблемы и перспективы проведения мелиоративных работ в Кабардино-Балкарской Республике

The article analyzes the problems and prospects for carrying out reclamation work in the Kabardino-Balkarian Republic. It is shown that it is urgently necessary to implement a set of organizational and agrotechnical measures: to ensure proper financing of land reclamation; carry out the reconstruction of old, ineffective and environmentally unfavorable reclamation systems; reduce the damage they cause to the environment and sectors of the national economy; introduce a soil-protective farming system, including, along with other measures, the creation of field-protective forest plantations, etc., which will help preserve soil fertility and reduce pollution of surface runoff with erosion products. Keywords: MELIORATION, MELIORATION SYSTEM, RECONSTRUCTION, SOIL, FERTILITY, ECOLOGY, EROSION

Peculiarities of bacteriosis development in agrocenosis of pome fruit orchards

Goal. Was to determine ssources of bacterium diseases of pome fruits in agrocenoses and their seasonal development study and factors, which impacts on plants defeating level.
 Methods. Field (route, selective and continuous studies) and laboratory (extracting pure bacterium cultures, determining pathogenicity, identifying through the sum of morpho-cultural and their physiological and biochemical features).
 Results. There were determined the defeating peculiarities of pome fruits by bacteriosis defeating on pome fruits during the investigation in 2011—2015 and 2021—2023. Their causative agents was conformed by bacterium extraction from plant material. The most intensive bacterial necrosis happened in spring, during the period of juice intensive movement, when the tree is the most favorable to defeating. The defeating observed only on some shoots in summer (to 5% from the volume of tree crown), but the cancer development continued on the trunk’s bark. The first symptoms of fire blight observed during blossoming and at the beginning of fruit setting. The full picture opened during the shoots’ active growth. The shoots` defeating level was in the scope of 3—12% and only on some trees reached 15—18%. The fire blight strong defeat (to 55% of crown tree) observed in 2015 through the mass propagation pear-tree psylla. New fire blight sources were not identified in Chernivtsi region in 2021—2023.There were only presence of bacterial necrosis causative agent.
 Conclusions. The bacteriosis defeating determined and researched in plantations Chernivtsi and Vinnytsia regions. The highest fire blight defeating level (to 55% of crown) connected with mass propagations of pear-tree psylla. It is the main pathogen carrier. The bacterium necroses defeating depends upon the weather conditions of weather period and following the necessary level of agrotechnical measures. The investigation scheme for pome fruits bacteriosis determined developed with phenological phases terms considerations and periods of the most plants susceptibility to phytopathogens defeating.

Formation of yield and quality of topinambur tubers with different planting techniques

To expand the production of topimanbur in the Russian Federation, it is necessary to develop adaptive cultivation technologies in various regions of the country. Field research was carried out on the territory of the educational and scientific experimental field of the Perm State Technical University. Three variants of the planting scheme were studied: 70x30, 70x40 and 70x50 cm and three variants of the weight of the planting tuber: 20-40 g, 41-60 g and 61-80 g. The applied agrotechnical measures are generally accepted for the non–Chernozem zone. The technology of planting topinambur is a comb. The research results show that with planting schemes of 70x30, 70x40 and 70x50 cm, topinambur forms the exact yield of tubers – 18.3-19.3 t/ha. When used for planting tubers weighing 41-80 g, the yield increases by 1.1-1.7 t/ha, compared with the planting fraction of 21-40 g, due to an increase in plant density by 0.1 pcs. /m2. Biological yield indicators fully reflect the actual yield. Under the studied planting schemes, it was also the same and amounted to 2002.6-2177.9 g/m2, and when planted with larger tubers, it was 271.7-277.0 g/m2 higher than tubers of 20-40 g. The proportion of tubers of the small fraction – 48-59 % prevails in the Jerusalem artichoke crop. The share of the food fraction is 8-16 %. The fractional composition of tubers in the crop does not depend on the mass of the planting tuber. The share of planting tubers in the harvest with schemes 70x30 and 70x40 cm is higher by 6-8 %. A higher dry matter content in tubers was observed when planting tubers weighing 20-60 g – 21.3-21.6 %, and vitamin C – when planting tubers 61-80 g – 14.5 mg/kg. The planting scheme does not affect the biochemical composition of topinambur tubers.

Study of the Sustainability of Ecological and Chemical Indicators of Soils in Organic Farming

Organic farming is often seen as a sustainable alternative to intensive agricultural systems. The studies conducted in this direction analyze various factors, as well as their assemblies, and show contradictory results. In order to assess the impact of the organic method of soil cultivation on the stable composition of the most important mineral and organic substances in the production process, the organic agriculture procedure was implemented with an agrochemical analysis for 12 years. The content of mobile phosphorus, exchangeable potassium, and humus in the soil was determined. An elemental analysis of soil samples was conducted for a more in-depth analysis of its composition. It was established that the soils of the farm contained a sufficient amount of exchangeable potassium and humus. The content of these components remained stable during the study period. It was discovered that the soils of the farm have a low content of mobile phosphorus, which also remained stable during the study period. In the studied farm, the applied farming technologies contribute to the stable content of the main nutrient components of the soil. But to correct the content of mobile forms of phosphorus, additional agrotechnical measures are required.

When the specialization is a curse: distribution of Lolium remotum Schrank in Slovakia

Distribution of Lolium remotum in Slovakia, a typical linicolous weed, is presented in this paper. The species was recorded in 30 quadrants of the Central European mapping grid; the most of localities were found in the Carpathians which is related to the areas of flax cultivation for the linen industry. While in the 19th century it was relatively common in flax fields, after the First World War it began to decline (flax sown areas decreased by three quarters in former Czechoslovakia during the world economic crisis of 1929-1933). In the second half of 20th century, the synergistic effect of several agrotechnical measures (precise cleaning of the seed, simplification of crop rotation, deep autumn plowing and application of herbicides) manifested; only single locality was documented. At present, it belongs to the extinct species of Slovak flora (RE), it has not been detected for over 60 years.

INFLUENCE OF TECHNOLOGICAL MEASURES ON BUCKWHEAT PRODUCTIVITY

Ukraine has favorable climatic and soil conditions for the cultivation of various niche crops, including buckwheat, which is in great demand on the market of Ukraine and other countries. The article provides measures to improve the technology of growing buckwheat with a high level of adaptability for specific growing conditions during the biologicalization of technological measures, the latest research and publications are elaborated; objectively assessed the importance and relevance of research on the issue of controlling weed vegetation during early spring and pre-sowing cultivation and harrowing with light harrows in phase 1-2 buckwheat leaves, which effectively reduce the level of weediness in buckwheat crops at the initial stages of growth and development of cultivated plants, because the sprouts of buckwheat plants are less competitive with weeds; optimization of the main nutrients during the treatment of buckwheat seeds before sowing with microbiological preparations that improve the morphobiological indicators of cultivated plants and subsequently affect the formation of the yield of buckwheat seeds when growing it in the soil and climatic conditions of the Pravoberezhny Forest Steppe. The results of the study of the influence of various preparative forms of processing buckwheat seeds with biological preparations on the formation of the yield of buckwheat seeds of the highly productive domestic variety Antaria were analyzed. It was determined that the use of various methods of processing buckwheat seeds by inoculation and treatment with biostimulants before sowing is an effective technological measure that allows to significantly increase the productivity of buckwheat agrocenoses with the lowest energy costs. As a result of agrotechnical measures, it was noted that early spring and pre-sowing cultivation + harrowing in the phase of 1-2 leaves on crops of Antaria buckwheat significantly led to the death of weeds. In areas where, in addition to agrotechnical measures, inoculation with Diazophyte and biostimulant Biocomplex of BTU was carried out, the number of weeds decreased by 34%, compared to areas where buckwheat seeds were treated with microbiological preparations and early spring and pre-sowing cultivation was carried out. To effectively control weeds in buckwheat agrocenoses, early spring and pre-sowing cultivation + harrowing should be carried out in the phase of 1–2 buckwheat leaves. Before sowing, buckwheat seeds should be treated with the microbiological preparation Diazofit + biostimulant Biocomplex BTU (100 ml. + 150 ml per hectare rate of seeds). These measures will contribute to the reduction of weeds by up to 36% and the possibility of obtaining a yield of buckwheat grain at the level of 1.54 t/ha.

Parameters of the robe roller for soil preparation

Studying the parameters of a ridge-forming roller for soil preparation is an urgent task in agricultural technology. This paper examines the influence of various parameters of ridge-forming rollers on the quality of soil tillage and its preparation for sowing. The main parameters are analyzed, such as the shape of the rollers, the depth of cultivation, the angle of inclination of the ridges, as well as the influence of their combinations on the structure of the soil and its air-water regime. The effectiveness of various configurations of ridge-forming rollers is assessed in order to optimize the process of preparing the soil for further agrotechnical measures. The results obtained can be used to develop recommendations for the selection of optimal parameters of ridge-forming rollers depending on the specific conditions of the soil and climatic region.

ОСТРУКТУРЕНІСТЬ ҐРУНТУ, ЗАБУР`ЯНЕНІСТЬ І ПРОДУКТИВНІСТЬ ЛАНОК СІВОЗМІНИ ЗАЛЕЖНО ВІД СИСТЕМ ОСНОВНОГО ОБРОБІТКУ ТА УДОБРЕННЯ ЧОРНОЗЕМУ ТИПОВОГО В ПРАВОБЕРЕЖНОМУ ЛІСОСТЕПУ УКРАЇНИ

The goal of the research is to study the influence of different tillage and fertilization systems on the structural condition of the arable (0-30 cm) soil layer, the weediness of agrophytocenoses, and the productivity of two links of field crop rotation. Materials and methods. The experimental work was carried out in 2021-2023 on a typical deep low-humus chernozem of the experimental field of Bila Tserkva National Agrarian University in a five-field stationary specialized (grain) crop rotation. Four systems of basic soil tillage and fertilization of agrophytocenoses were studied. The zero fertilization system did not provide for the application of fertilizers, the first - 6 tons of manure + N64P54K58, the second - 6 tons of manure + N98P66K92, the third - 6 tons of manure + N126P82K116 per hectare of arable land. Analysis methods: field, laboratory, comparative, mathematical-statistical. Results. The article presents the results of studies on cultivation of various agricultural crops under four systems of basic soil tillage and four systems of agrophytocenoses fertilization. The influence of these agrotechnical measures on the structural state of arable layer, the current weediness of agrophytocenoses, and the yield of grain and green mass of the crops under study have been considered. Long-term studies have convincingly proven that with chisel-disc, and especially disc tillage, there is a clearly defined profile differentiation of the arable soil layer in terms of the content of water-resistant aggregates in different parts of it - most of them are in the lower (20-30 cm) part, significantly less in the upper (0-10 cm). With an increase in fertilizer application rates, the structural condition improves and the actual weediness of agrophytocenoses decreases. Grain crop yield is significantly reduced by chisel-disk and disk processing; when differentiated, it increases in the agrophytocenosis of winter wheat and buckwheat and decreases in the agrophytocenosis of peas, but these changes do not reach statistically significant values. Significantly less green manure mass of white mustard was obtained by disc processing and significantly more was obtained with differentiated processing of only fertilized areas of the second link of crop rotation. During chisel-disk processing, this indicator decreases insignificantly in the first link and increases insignificantly in the second. Conclusions. It is noted that the first link dominates in the collection of feed units, the yield of grain and digestible protein per hectare of arable land, and the provision of digestible protein to a feed unit. An insignificant advantage of the second link was observed in the collection of dry matter of the main and by-products only in the differentiated treatment areas fertilized with the second and third rates of fertilizers. Analyzing the data obtained, it can be argued that with non-shelf-disk and disk cultivation, the productivity of a hectare of arable land in both stages of crop rotation significantly decreases. With differentiated and shelf-disk processing, this indicator is almost at the same level. Keywords: soil structure, weed infestation, soil, crop rotation, link, cultivation, fertilization, productivity.