bluuebunny/crossref_metadata_2025_split huggingface dataset:
The duration of the growing season for samples of spring soft wheat of Siberian selection
Authors: Fedosenko D F , Nikitina V I 
Published: March 2021

Abstract
The results of field experiments on the study of the duration of the growing season and its main phases in 33 samples of Siberian selection under the conditions of the Krasnoyarsk forest-steppe showed that the variability of the interphase periods of shoots - earing and earing - waxy ripeness is largely determined by the growing conditions (31.1 and 37.4% respectively) in relation to the growing season (0.9%). The duration of the growing season is primarily determined by the genotypic characteristics of wheat samples (88.3%). The contribution to the phenotypic variability of the studied traits depends on the ripeness group. We identified wheat samples of interest for hybridization, with a longer interphase period - sprouting - earing and shortened - earing - waxy ripeness.
Transformations in agricultural land use: through changes in land functions to changes in information support for land management
Authors: Zhigulina T N , Luchnikova N M , Lebedeva L V 
Published: March 2021

Abstract
The article discusses one of the aspects of the key global problems, the problem of rational land use. This problem has gained particular relevance in the context of globalization and the transition to a digital economy. It was revealed that during the transition to the digital economy, the transformation of the existing functions of land is obvious, both due to a change in society’s ideas about the global goals of humanity and the problems of globalization, and due to a change in the idea of information as the main resource of the economy. In order to achieve the global goals of mankind and overcome the problems of land use, taking into account the requirements of the digital economy, a new interpretation of the functions of the land is proposed: land as a means of ensuring food security; as a basis for urbanization and population growth, as a basic layer of economic space. Digital information cadastral resources should become a mechanism that will allow us to overcome information barriers (global land use problems) to achieve the global goals of mankind in terms of land use. Such resources should be the development of accounting systems of state and use of land and accumulate direct or derived characteristics of a specific land use, allowing to assess the degree of performance of a land plot of certain functions, as well as the ecological/economic state of land use.
Modeling the throughput capacity of threshing-separating apparatus of grain harvester’s combines
Authors: Rogovskii I L , Martiniuk D I , Voinash S A , Luchinovich A A , Sokolova V A , Ivanov A M , Churakov A V 
Published: March 2021

Abstract
The statistic proposes the analytical provisions and the experimental results of the throughput capacity of the threshing apparatus of grain harvesters, from the capacity of straw, grain, straw content, blockage of design characteristics. The threshing capacity is most significantly affected by weediness due to humidity, with a relative weediness of 0.05 bread weight, the capacity of the threshing machine is reduced by 2.5%, and with 50% weed by 16%. Loading of the threshing machine determines the productivity of the combine and fuel efficiency due to fuel consumption for harvesting 1 hectare, as well as threshing 1 ton of crop. The power of the combine engine is designed to perform work in extrem econditions, as a result, the average loadis 2/3 of full. During the operation of the combines, the time is only 45…50% of the total operating time of the engine. Underemployment of the engine leads to overconsumption of fuel. So, if the SMD-21M diesel at full operational power of 103 kW consumes fuel of 0.24 kg on 1 kW for an hour, at loading on 50% 51 kW s. specific fuel consumption increases by 41 g/kWh, or 17%, which corresponds to fuel consumption 2.1 kg/year.
Development of agrotechnology of spring wheat using an environmentally safe method of disinfection and biostimulation of seeds
Authors: Romanov V N , Kozulina N S , Vasilenko A V , Vasilenko A A 
Published: March 2021

Abstract
The article presents the results of the development of agrotechnology of spring wheat using an environmentally safe method of disinfection and biostimulation of seeds, the impact on field germination and reduction of infection with the most harmful microorganisms. The analysis of the obtained results shows that the use of a physical method of seed treatment effectively affected the reduction of infection of wheat grain with pathogens of phytopathogenic microflora to the established thresholds of harmfulness.
Mathematical modeling of wind power plant capacity
Authors: Samsonenko D , Khudoyarov V , Rovnyagina A , Drankova A , Krylova A 
Published: March 2021

Abstract
The use of wind power plants is closely related to the issue of improving their efficiency. Accordingly, there is a need to build a model of turbine operation that allows you to evaluate the output characteristics of the installation and the influence of various parameters on them. In this paper, the simulation was performed using computational fluid dynamics (CFD) methods using the ANSYS Fluent program. The behavior of aerodynamic flows near the blades is also analyzed. As a model for describing the air flow, the k-ε model was chosen, for which the corresponding boundary conditions were selected. Simulations were performed for different air flow rates. The power curve obtained from the results of the aerodynamic flow simulation is compared with the power curve obtained from experimental data. Based on the simulation results, it is possible to predict the turbine power, depending on its initial parameters.
Probabilistic assessment of water quality in terms of oxidability
Authors: Yalaletdinova A V , Kantor E A , Beloliptsev I I , Galimova Y O 
Published: March 2021

Abstract
There has been analyzed the nature of the distribution of the oxidability of water. It is revealed that the nature of the distribution of indicator values during the year depends largely on the seasonal factor, and therefore the analysis of the distribution of oxidability is proposed to be studied separately for each month. A variation series is constructed and empirical distribution functions of oxidability distribution is derived. It is established that the law of water oxidability distribution differs from the normal and lognormal distributions, but it is described with sufficient accuracy by the gamma distribution or by a cubic polynomial function (being the simplest). The hypothesis about the distribution law is confirmed by the Kolmogorov–Smirnov test. The water oxidability distribution function allows to determine the probability of exceeding the specified values of the indicator and quantitatively assess the risks of exceeding them, which can become the basis for developing solutions for managing water quality and increasing the efficiency of the water treatment process.
Probability assessment of water turbidity in rivers based on optimizing the distribution function
Authors: Yalaletdinova A V , Kantor E A , Galimova Y O 
Published: March 2021

Abstract
The method of least squares was used to optimize the theoretical water turbidity distribution function; as a result, the function was derived with all the properties of the distribution function (continuous and monotonically increasing function, values ranging from 0 to 1). It was demonstrated that the optimized polynomials can be used to estimate the probability of any water turbidity-related occurrence, but they cannot be used reliably for all time periods. Thus, the obtained polynomials are ineffective for studying the seasonal nature of changes in the turbidity distribution, which is not entirely convenient for modeling and entails the need to search for other mathematical models.
Climate change impact on extreme flood occurrence and flood-related damage to the Primorye Region agriculture
Authors: Lyude Anna , Boiarskii Boris , Matsishina Nathalia , Fisenko Petr , Emelianov Alexey , Hasegawa Hideo 
Published: March 2021

Abstract
Research indicates that climate change aggravates extreme weather events resulting in flooding or soil waterlogging. Damaging abiotic stress imposed by flooding affects crop production negatively. Recently, floods, adversely affecting regional agriculture, occur in the Primorye region yearly. However, available statistics and research on flooding and its consequences for the region are fragmented and scarce. Based on meteorological data of temperature (1889 - 2019), along with annual (1911 - 2019), monthly, and daily (summer months 2015 - 2019) precipitation data in the Primorye region, this research aimed to grasp the exact situation in flooding events occurrence. The results demonstrated a significant increase in the mean annual temperature and extreme precipitation events. Further, the study discussed the deficiencies in the existing system of flood damage assessment and loss compensation. Deriving from the experience of the Federal Research Center of Agribiotechnology of the Far East named after A.K. Chaika (Ussuriisk), the study attempted to estimate the multifaceted negative economic and environmental impact of flooding events on crop production, including flooding influence on land fertility, the effect on pests and disease manifestation, impact on the crop seed quality. The results call for the further robust investigation of the structure (both tangible and intangible) and scale of flooding effects on regional agriculture and add-up to the knowledge base on the topic.
Microorganisms of Lake Baikal and their pathogenic properties
Authors: Pliska A A , Batomunkuev A S , Ponomarev D A 
Published: March 2021

Abstract
The article presents the results of microbiological studies of water from Lake Baikal in the spring period, and identifies a wide range of microorganisms that are tested for pathogenicity. It was established that many microorganisms of the enterobacteriaceae were pathogenic for laboratory animals. In 100 % of cases, pathogenic, sporogenous, anaerobic microorganisms were isolated - Cl. perfringens that multiply without access to oxygen, so, in the water mass.
On the issue of creating a comfortable environment to improve the ecology of urban ecosystems
Authors: Aksyanova T Y , Livak N S , Lebedikhin V V , Smirnaya A A 
Published: March 2021

Abstract
The paper examines the existing domestic and foreign research in the field of human perception of the surrounding visible environment. On the basis of these studies, principles are formed that must be used for the reconstruction of existing spaces or the formation of new ones in order to create a comfortable environment, thereby improving the ecology of the urban ecosystem.
Adaptation capabilities of apple trees in the Southern Baikal region
Authors: Rachenko M A , Rachenko A M 
Published: March 2021

Abstract
The harsh climatic conditions of Siberia, and in particular of the Southern Baikal region, make special requirements for the selection of apple varieties. These are a high frost resistance in the middle of winter, insensitivity to temperature changes at the end of winter, a short growing season and the ability to quickly hardening in autumn. The aim of the work was to study the adaptive capabilities of different apple varieties in the conditions of the Southern Baikal region. In this work was reflected the analysis of climatic conditions in the research region and conducted microclimatic zoning of the territory for gardening. To achieve this goal, the methods of field observation, artificial modeling of climatic factors and statistical analysis were used. Based on 11 features, the “model” of the variety for the area of research was substantiated. Comparison of 30 varieties of apple trees with a “model” of the variety allowed identifying varieties of interest for commercial cultivation of apple trees in the Southern Baikal region.
Assessment of lactic acid bacteria new consortia proteolytic activity
Authors: Kitaevskaya S V , Ponomarev V Y , Yunusov E Sh , Kamartdinova D R 
Published: March 2021

Abstract
The paper presents data on the assessment of the proteolytic activity of new consortia of microorganisms containing functionally active strains of lactic acid bacteria p. Lactobacillus in order to identify highly effective combinations for the production of fermented foods. The proteolytic activity was evaluated on a standard protein substrate albumin and casein, the main protein of milk and dairy products. As a result of the studies, consortia of lactic acid bacteria were identified containing strains of L.casei, L.fermentum, and L. plantarum in ratios of 1: 1: 1 and 2: 1: 1, exhibiting high proteolytic activity, on the basis of which they can be recommended for inclusion in the composition of starter cultures for the production of functional products.
State of dark coniferous plantations in the southern part of the Yenisei Siberia: the role of biotic factors
Authors: Tatarintsev A I , Aminev P I , Mikhaylov P V , Bulanova O S 
Published: March 2021

Abstract
The article assumes that, the areas of dark coniferous forests with disturbed and lost stability are catastrophically expanding in Siberian regions in the modern period. This fully applies to the plantations with a prevalence of Abies sibirica Ledeb., located in the southern part of the Yenisei Siberia (territory of the Krasnoyarsk Region). The research was carried out in the spruce and fir plantations of the Biryusinsky district forestry of the KGU “Emelyanovskoye lesnichestvo” in order to clarify the role of the main biotic factors of the sanitary state violation and drying out of dark coniferous plantations. The method of research is route and detailed forest pathological inspection with the subsequent integral evaluation of the sanitary and forest pathological state of forest plantations. On the basis of all indicators of the state and tree falling parameters, a slight disturbance of the stability of the forest plantations Picea obovata Ledeb. was established; weak-strong disturbance until the loss of stability of A. sibirica plantation with their progressive drying out. The main biotic factors in the accumulation of pathological tree fallings and degradation of fir stands are the root pathogen Armillaria mellea s. l. and the invasive xylophage Polygraphus proximus Blandford in association with the micromycete Grosmannia aoshimae, that have a concomitant negative effect on trees. Additional factors of weakening, less often drying of fir trees are necrotic rust diseases; they are bacterial dropsy (pathogen is an association of phytopathogenic bacteria) and blister rust (pathogen is Melampsorella caryophyllacearum G. Schrot.), genus Monochamus.
Mycorrhizal formation of light-coniferous species of urbanized ecosystems
Authors: Zaitsev G A , Mukhametova G M , Safiullina L M 
Published: March 2021

Abstract
Mycorrhiza formation plays a key role in the adaptation of light-coniferous species of urbanized territories, since the fungal symbiont acts as a barrier against technogenic impact. The article presents the study of mycorrhiza formation of Pinus sylvestris and Larix sukaczewii in urbanized ecosystems of the Strelitamak industrial center, Republic of Bashkortostan. The material was sampled in 2009 and 2016 at 8 sample plots. Anatomical and morphological structures of trees roots absorbing parts were analysed, micropreparations of cross sections were made. Mycorrhiza formation under the influence of technogenic pollution is not suppressed, the development of the fungal component of mycorrhiza increases. Pine mycorrhizal associations were found to be more sensitive to industrial pollution than larch mycorrhiza. The variety of fungus sheath of light coniferous species changes according to a single scheme. The plant makes for the unfavorable ecological conditions by a higher level of mycorrhiza formation development.
Advantages of feeding pregnant sows with biologically active substances based on folic acid and trace elements
Authors: Titova N V , Belookov A A , Belookova O V , Vakhmyanina S A , Maksimova R A 
Published: March 2021

Abstract
The nutrition of sows has a significant impact on their productivity and milk production, as well as the multiple, large-fruited and the viability of the litter. The influence of folic acid and salts of microelements was studied by including them in diets, on the reproductive function of pregnant sows and the quality of offspring. The sows of the 1st control group received the basic diet adopted on the farm, the animals of the 2nd experimental group received folic acid in addition to the basic diet, the 3rd group received salts of trace elements (cobalt, manganese, zinc, copper and iodine), the 4th group was fed by a complex consisting of folic acid and mineral salts. It was found that the use of folic acid and a complex of salts of microelements had a beneficial effect on metabolic processes in the body of pregnant sows, improved their physiological state and increased the safety of piglets by 12.72%. The complex use of mineral salts and folic acid had a positive effect on the synthetic function of the liver. The increase in fertility, the number and live weight of piglets at birth and weaning in sows of the experimental groups can be explained by the improvement of feeding conditions, in particular, the enrichment of compound feed with biologically active substances, an improvement in the digestibility of the main dietary substances and, as a consequence, the activation of metabolism. In order to improve metabolism, reproductive function, increase fertility, nest weight at birth and weaning, preservation of piglets, we recommend adding trace element salts to the diet of pregnant sows in the following doses: CoSO4 - 10 mg, MnSO4 - 50 mg, ZnSO4 - 50 mg, CuSO4 - 50 mg and KI - 10 mg per 100 kg of body weight and folic acid - 35 mg/head during the entire period of pregnancy.
The effectiveness of experimental herbal preparations in organic animal husbandry
Authors: Rasskazova N T , Tsoy Z V , Pulinets A K 
Published: March 2021

Abstract
Rabbit breeding is a promising branch of animal husbandry. Rabbits provide delicious dietary meat, valuable fur raw materials and down, while using cheap and affordable feed: grass, hay, branch feed, a little grain, and in poultry farming only grain. The development of rabbit breeding in our time requires a reliable infrastructure that connects supply and demand, processing, technological and veterinary services. In addition, all rabbit breeders must be united in a single organization. This article examines the effect of Ked and LBA preparations on the reproductive qualities of rabbits. The positive effect of drugs on multiple pregnancies, the weight of rabbits and safety has been experimentally proven.
Dependence of speed qualities and elemental status on the mercury level in the mane hair of purebred riding horses
Authors: Kalashnikov V V , Zaitsev A M , Atroschenko M M , Miroshnikov S A , Frolov A N , Zavyalov O A , Kalashnikova T V 
Published: March 2021

Abstract
To assess the influence of the level of mercury in the hair from the mane on athletic performance and elemental status of horses, a study was carried out on purebred horse breed stallions. Age at the time of sampling of hair 5-7 years. The elemental composition of biosubstrates was determined by 25 indicators, by atomic emission and mass spectrometry (AES-ICP and MS-ICP). The assessment of the speed qualities of stallions was carried out in sports competitions according to the time of passing a distance of 2400 meters. It was found that the effect of the level of mercury in the hair from the mane on the speed qualities of stallions (r = −0.57). Moreover, if stallions with a mercury concentration of less than 0.0018 mg/kg spent 158.6 ± 3.5 seconds to overcome the distance, then at a level of 0.0767-0.304 mg/kg, on average 15 seconds longer. Comparison of the groups with the boundaries of the reference intervals of the concentrations of chemical elements in the mane showed that the high agility of the horses was associated with a relatively smaller number of elements exceeding the boundaries of the intervals, so if there were four of them in group I: K, Na, I, Sn, then in II and III groups of them were eight Ca, K, Na, I, Zn, Pb, Sn, Hg and Ca, Cu, Zn, B, Si, Li, Sn, Hg, respectively. It was revealed that the elemental composition of the hair of the mane is closely related to the sports results of thoroughbred riding horses, and for some of them the changes exceeded 250% (Si). It was concluded that it is necessary to study the concentrations of Hg and Si in the hair from the main during preparation for the competition, for their further correction.
Effect of Septoria on the specific activity of Glycines max (L.) Merr hydrolases
Authors: Martinenko N V , Lavrentyeva S I , Tarasova O N , Ivachenko L E 
Published: March 2021

Abstract
Soybean (Glycines max (L.) Merr) is culture-sensitive to diseases and infections. The article states that a detailed study of the physiological processes at the biochemical level is required. It induces oxidative stress to create a cultivar resistant to S. glycines. Enzymes play a leading role in adaptation to stressors. The hydrolase enzymes we have selected for the study have selective neutral behaviour (concerning S. glycines on the studied soybean varieties), which allows them to be used as protein markers for the selection of the most resistant cultivar to S. glycines at the molecular level.
Coccomycosis resistance of the remote sour cherry hybrids
Authors: Fedotova I E , Ostrikova O V , Kharkhardina E L 
Published: March 2021

Abstract
The article states that adapted high-yielding varieties of cherry fruits are needed to meet the needs of population. The distant hybridization method within the Prunoideae subfamily has been applied to create remote hybrids resistant to coccomycosis. The absence of significant differences in resistance to coccomycosis among groups of remote hybrids of the second, third and fourth generations were revealed. The possible expediency of the fifth-order backcrosses is revealed. Among the created remote hybrids, groups of highly resistant, with increased resistance and middle resistant genotypes were identified. The genotypes, i.e. possible sources of oligogens, selected promising forms to create affect-resistant varieties and rootstock forms with high resistance - 09-00, 05-29; with increased resistance - 09-23, 05-00, ELS Surpriz, Novella, ELS 14-1, 10-26, 10-29, 08-00 are recommended.