bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biological activity of chitosan aspartate and its effect on germination of test seeds
Authors: Khaptsev Z , Lugovitskaya T , Shipovskaya A , Shipenok K 
Published: April 2021

Abstract
A polymer salt, chitosan aspartate, was obtained by dissolving chitosan in an aqueous solution of L-aspartic acid. It was found that polysalt macromolecules in an aqueous medium exhibit the properties of a cationic polyelectrolyte with a partially compensated positive charge. Chitosan aspartate shows high antibacterial activity and no cytotoxicity. The positive effect of polysalt on germination of watercress test seeds was revealed, which allows us to consider chitosan aspartate as a promising biostimulator of plant growth.
Regional agriculture in the context of sustainable development: legal and social issues
Authors: Panchenko V Y , Makarchuk I Y , Pastukhova N B , Albertian A P , Shitova T V , Pchelkina G I 
Published: April 2021

Abstract
This paper discusses the issues of sustainable development in agriculture from a regional perspective and particularly focuses on the social and legal aspects of the problem. The authors point out that sustainability of regional agriculture is affected by various national, geographical, and other factors as well as the mentality of the local population. In this study, sustainability of regional agriculture is defined as the way of ensuring optimal conditions for the preservation of the regional agricultural sector in the times of crisis, as well as the creation of an efficient socio-economic mechanism that guarantees the steady and eco-friendly development of agriculture. In this regard, the efforts of the regional business community and government support can be very effective at ensuring the sustainability of regional agricultural systems. In today’s market economy, the government seeks to stimulate economic growth while also considering the interests of the rural population, which is impossible to achieve unless the regional agriculture is sustainable.
Brackish water desalination using electrodialysis with monovalent selective membranes
Authors: Titorova V , Kirichenko E , Kirichenko K 
Published: April 2021

Abstract
Electrodialysis with selective membranes is used to desalinate surface waters while preserving the polycharged ions. Layer-by-layer adsorption of alternating positively charged and negatively charged polyelectrolytes at the surface of the substrate membrane is known as a simple and cheap method for the production of selective membranes. In this article we investigate model membranes surficially coated from one side with two types of anion exchange modifiers and conclude that for both types of created samples a high limiting current of salt ions is observed but the intensity of a side process, a shift in the pH of the treated solution, increases after the modification. We propose that it is more reasonable to modify membranes by this method with polymeric quaternary ammonium substances, which are less catalytically active in water dissociation reaction. This will reduce the energy demand of the process and will improve the quality of treated waters.
Analysis of pesticide load on agricultural land and the effect of chemicals on ecosystems
Authors: Ulivanova G V , Fedosova O A 
Published: April 2021

Abstract
The article analyzes the pesticide load on agricultural land using the example of the agroecosystem of Moscow region, in particular, the concentration of a wide range of pesticides in soil samples at the beginning and end of the growing season of the model crop, the content of pesticides in agricultural crops at the beginning and end of the growing season and residual pesticides in crop products. The research revealed an excess of the concentration of a number of pesticides in soil samples and agricultural crops. It was noted that the concentration of DDT and its analogues in the herbage at the end of the growing season was 0.031 mg/l, that is three times higher than the MPC level.
Evaluation of the sale of grain in certain categories of farms, as the main product of land cultivation
Authors: Generalov I G , Suslov S A , Kadyrberdieva A S , Bazhenov R I , Burik O V 
Published: April 2021

AbstractThe purpose of the study is to assess the possibility of selling grain. The authors used a set of indicators describing the central trend, variability of time series data, as well as the forms of their distribution. The materials of the analytical part were the data of the Territorial Body of State Statistics of the Nizhny Novgorod Region and the Unified Interdepartmental Information and Statistical System. The article provides an economic and statistical assessment of the implementation of one of the agricultural regions of the Non-Black Earth Region - the Nizhny Novgorod Region. As a result of the study, a low level of grain sales was established. The analysis revealed the categories of farms with the weakest levels of grain sales in the region.
Carthamus tinctorius L. development and productivity under the influence of ecological and climatic factors
Authors: Oleynikova E M , Koltsova O M , Mateyeva S Z , Mateyeva A E , Mirsaidov M M 
Published: April 2021

Abstract
The authors consider Carthamus tinctorius L. development and productivity under the influence of geographical zone conditions defining that plant vigor and reproductive sphere development are greatly influenced by climatic and ecological conditions starting from the virgin stage. A reduction in the duration of plant vegetation period in the conditions of Voronezh Oblast as an adaptation mechanism of the species was established. At the same time, the seed productivity of safflower did not depend much on geographical conditions. The authors present the results of studying the morphogenetic characteristics of species and starting date of each phenophase. The data obtained show the presence of high adaptive potential of the crop under study and the possibility of its cultivation in the conditions of the Central Chernozem Region
The effect of foliage spraying with complex micronutrient fertilizers and humate on quantitative losses of potatoes during storage
Authors: Savina O V , Afinogenova S N , Baidova N V , Buranova E A , Krishtafovich V I 
Published: April 2021

Abstract
The article examines the effect of foliage spraying with complex micronutrient fertilizers Strada N, Strada R and humate Ekorost on the preservation of potato tubers of Gala and Latona varieties. The data on natural loss and total quantitative losses of experimental and control tubers after eight months of storage are given. A decrease in the natural loss of mass and absolute waste of tubers in the variants with the use of complex micronutrients has been revealed. Micronutrient Strada R with predominating phosphorus had the greatest effect on increasing the preservation of tubers. It is shown that the use of Ekorost humate does not have a pronounced effect on increasing the storage capacity of tubers, although it leads to a slight decrease in the natural loss of mass of two potato varieties.
Bacteriophages of Pseudomonas syringae: features of isolation and study of main biological properties
Authors: Vasiliev D A , Feoktistova N A , Suldina E V , Mastilenko A V , Bekkalieva A K 
Published: April 2021

Abstract
The article presents the results of studies on isolation and study of biological properties of bacteriophages specific for phytopathogenic bacteria Pseudomonas syringae. 8 new virulent bacteriophages were isolated and selected from environmental objects. The main biological properties of isolated phages, including lytic activity, were studied (according to Appelman, the indicator was equal to from 10-5 to 10-8; by diffusion method in «soft agar» - from 1.0±0.1*106 to 2.0±0.1*109 (PFU/ml), «spot test» - spot test confirmed the results obtained by diffusion method in «soft agar» - n6 – n9) and its diapason, which ranged from 21.4% (Ps.s-13 UlGAU) to 85.7% (Ps.s-7 UlGAU, Ps.s-27 UlGAU), morphology of plaque-forming units (morphology of negative colonies), specificity within genus and species, changes in lytic activity index during storage, features of impact of physical and chemical factors (trichloromethane at the ratio of 1:10, the impact of which during 5-85 minutes does not influence on biological activity of phages when determining by indirect method; urea, whose 30% solution reduces the yield of plaque-forming units of each bacteriophage studied by about 77.6-85.5 %; temperature in the range of -5 to 10°C and from 50 to 100°C). The study of biological properties allowed us to systematize biological features of each of isolated clones of virulent bacteriophages and select the 4 most promising bacteriophages for further research. The research is carried out with the support of Russian Foundation for Basic Research, the project “Fundamental foundations for the development of phage preparation specific to Pseudomonas syringae, and applied aspects of its application for phagoidentification and bioprocessing of food and agricultural raw materials” No 19-44-730014.
Genesis of secondary vegetable communities of post agrogenic plakor landscapes (Meshchovskoe Opolye)
Authors: Burlutskiy V A , Mazurov V N , Semeshkina P S , Filatov A N , Borodina E S 
Published: April 2021

Abstract
The article shows the dependence of the composition of synanthropic plant communities of postagrogenic landscapes in the agroclimatic conditions of the Central regions of the Nonchernozem zone of the Russian Federation (Meshchovskoe opolye) on agroclimatic conditions, the composition of the segetal complex of agrophytocenoses and agricultural technologies used for cultivation, the influence of anemochoric inspection and episodic pyrogenic disasters. Tap-root and rhizome species of segetal plants are predominantly involved in the development of fallows; the highest density of formations and accumulation of the phytomass of communities is observed in May – June, which is influenced by the frequency of occurrence, productivity, and specific area of dominant plant species. It has been established that the floristic core includes 214 species of higher herbaceous plants that determine the productivity and potential food value of secondary meadow communities, including invasive species that have an adaptive potential to zonal ecological and soil conditions. The placement of agrophytocenoses of oats during the development of middle-aged cereal-legume meadow phytocenoses with a share of legumes in the structure of up to 35% contributes to an increase in the yield of grain fodder by an average of 9.3% and an increase in the collection of metabolic energy by 11.1%.
Increasing yield and quality of grain wheat in steam grain-steamed crop rotation in the lower Volga region
Authors: Solodovnikov A P , Lyovkina A Y , Linkov A S , Gudova L A 
Published: April 2021

Abstract
The scientific work shows the influence of agrochemicals and methods of the main tillage in the steam link of grain-row crop rotation on the yield and the proportion of protein in dry matter in winter wheat grain. The analysis of soil moisture and moisture reserves in a fallow field during the sowing of winter wheat in the Lower Volga region was carried out. Three-year data show that the main processing of black fallow by 10-12 cm for sowing winter wheat reduces its yield by 0.25 t / ha (10.6%). The maximum values of the yield of winter wheat were obtained on combined processing - 2.40 t / ha, with an insignificant increase (2.1%) in relation to the control (moldboard processing). Deep moldboard-free loosening of the soil by 30-32 cm did not provide a significant decrease in yield (-0.03 t / ha). Foliar feeding of winter wheat crops with micronutrient fertilizers increased the yield by 7.3-11.4%, a growth stimulator (GSN-2004) by 3.8 - 8.2%. Giberelon (growth regulator) in the severely arid years of research on the dark chestnut soils of the Lower Volga region did not have a significant effect on the grain yield of winter wheat. A significant increase in the protein content was formed in the variants with feeding Megamix No. 10 - 0.4-0.5%, Mikrovit – 0.4-0.6% (mineral fertilizers) and GSN-2004 (growth stimulant) - 0.5-0.6%.
Autolysed yeast – modern solution for baking from strong gluten wheat flour
Authors: Morozov A , Meledina T , Soboleva E , Segacheva E , Gerasimov A 
Published: April 2021

Abstract
This research is based on baking improver development using yeast autolyzate from brewer’s wastages which contains reduced glutathione (GSH). It is one of the most common tools to improve the quality of the wheat flour. This study shows the influence of yeast autolyzate to property of the strong wheat flour, dough, and bread quality. The most significant indicator of wheat flour quality is the amount of wet gluten which were increased from 29,4 to 34,8% due to adding yeast autolyzate. Moreover, ratio P/L from Alveograph was changed from 3,16 to 1,68 in the presence 0.07% autolyzed yeast. Also, dough stability and specific bread volume were improved. In this research, modern methods based on rheological data and traditional ones are used.
Body weight dynamics of broiler chickens by feeding probiotic preparation
Authors: Koshchaev I A , Mezinova K V , Sorokina N N , Ryadinskaya A A , Ordina N B , Chuev S A 
Published: April 2021

Abstract
Under industrial conditions, broiler chickens are constantly exposed to stressful factors that can increase their susceptibility to intestinal diseases, leading to reduced productivity, immune suppression, and increased mortality. Antibiotics are widely used to maintain and improve productivity in such conditions. However, in recent years, there has been a tightening of the rules on the use of antibiotics in animal husbandry in order to stop them from entering food for people, as well as in connection with the emergence of strains of pathogenic bacteria that have developed resistance to a wide range of antibiotics, which pose a danger to human health and life. In this regard, manufacturers are searching for alternatives to antibiotics. One of the most promising groups is probiotics. In the course of the study, it was found that low-protein diets (with a low protein content, but balanced by the amino acid profile) can unlock the potential of probiotic cultures of the Bacillus amyloliquefaciens strain and, as a result, increase the safety of broiler chickens by 4.6 %, body weight by 10.1 %.
The quality and content of anthocyanins in purple- and blue-grained wheat in the south of Western Siberia
Authors: Khlebova L P , Melnikova Yu V , Barysheva N V , Suharkova N V , Vistovskaya V P 
Published: April 2021

Abstract
The development of wheat cultivars with an increased content of anthocyanins is one of the topical areas of modern plant breeding. Flavonoid pigments are natural antioxidants and are extremely beneficial to human health. We studied the collection of spring bread wheat with purple and blue grains in the south of Western Siberia (the Russian Federation). Samples were taken from the genetic bank of N. I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) (St. Petersburg). Blue A (New Zealand), Fioletovozernaya (Russia) and Konini (Canada) can be sources of high anthocyanins, protein and gluten to improve commercial bread wheat cultivars.
The application of immuno-enzymal analysis as a method of early express diagnostics of rednoya in pond fish
Authors: Kapitova I A , Spiridonov A V , Glebova I A , Gorbunov A V 
Published: April 2021

Abstract
Due to the lack of effective means of specific prevention of rubella in pond fish (CRF), it is obvious that early diagnosis is one of the most important and effective ways to combat this disease. This theoretical study is devoted to the development of an express method for the rapid detection of antibodies to rubella pathogens in pond fish (Aeromonas punctata, Pseudomonas, Rabdovirus cyprini). To date, the diagnosis of CRC (Rabdovirus cyprini) is determined by the results of the clinical picture, taking into account anatomical data, epizootological indicators and virological research results. The diagnosis of CRC (Aeromonas punctata, Pseudomonas) is determined by bacteriological results, taking into account epizootological indicators, clinical signs and pathological changes. The use of enzyme-linked immunosorbent assay (ELISA) for the determination of CRC antibodies is a comprehensive diagnostic kit that allows you to significantly reduce the time for examination (sample preparation, reaction, results recording), and also reduce the number of errors caused by the human factor. The ELISA reaction makes it possible to quickly and efficiently obtain research results. As a result of the study, indicators of the effectiveness of the application of this technique for the diagnosis of CRC were proposed. The advantage of ELISA in comparison with the bacteriological method lies in the simplicity of setting and the reduction in the time of analysis (within 1-2 hours). The proposed method for the determination of rubella in pond fish using enzyme-linked immunosorbent assay allows, within the framework of laboratory monitoring, to carry out an express diagnosis of the CRC disease. The possibility of early diagnosis of this disease, the low cost of diagnostic kits and the ability to automate most stages of the reaction, demonstrate the practical value of the presented method.
Influence of microbiological preparations on the rate of decomposition of winter wheat straw and the productivity of sugar beet in the conditions of the Kursk region
Authors: Lazarev V I , Rusakova A A , Glebova I A , Klimov V A 
Published: April 2021

Abstract
The influence of the preparations Mycobact, Gumistim and Trichophyte on the microbiological activity of typical black earth, decomposition of winter wheat straw and the yield of the next crop of crop rotation - sugar beet was studied. It was found that the treatment of chopped straw after harvesting winter wheat with the preparation Gumistim at a dose of 5 l / ha for 90 days of exposure increased the microbiological activity of the soil (loss of linen tissue) to 62.9%, while the loss of linen tissue in the control variant was equal to 46.9%. The use of microbiological preparations Trichophyte at a dose of 7 l / ha and Mycobact at a dose of 3 l / ha as destructors contributed to an increase in the degree of decomposition of linseed linen to 68.1 and 75.3%, respectively. Straw treatment with microbiological preparations Gumistim at a dose of 5 l / ha, Trichophyte at a dose of 7 l / ha, Mycobact at a dose of 3 l / ha, as well as two-fold processing of sugar beet crops in the phase of closing leaves in rows and the phase of closing leaves in row spacing with these preparations contributed to an increase in the yield of sugar beet by 3.5-4.3 t / ha, increased the cost of gross production by 3500-4300 rubles, and given the low cost of the fertilizers themselves and the small rates of their application, it was economically profitable. The value of the conditionally net income from the use of microbiological preparations was 2040-2950 rubles / ha. The most cost-effective was the use of the microbiological preparation Mycobact.
Formation of a system for increasing the sustainability and productivity of the agro-industrial complex
Authors: Kharitonov L A , Kucheryavaya E V , Zhemerikina J I , Senotrusova A A 
Published: April 2021

Abstract
Research into the issues of increasing the sustainability and productivity of the agro-industrial complex is becoming more and more in demand. The agro-industrial complex acts as a point of concentration of resources in the sphere of material production, a catalyst for economic development, and ensures an increase in the quality of life. This article discusses the issue of measures to increase the sustainability and productivity of the agro-industrial complex as part of strategic planning, ensuring continuous economic growth and the formation of food security, including using methods of effective human resource management. The authors analyzed the problematic aspects of the internal and external environment that affect the productivity of the agro-industrial complex, and also formulated relevant proposals to overcome pressing problems.
Theoretical background for a robotic device designed for suckling piglets nursing
Authors: Plaksin I E , Trifanov A V , Plaksin S I 
Published: April 2021

Abstract
The pig industry in Russia annually ramps up production through the improved intensity, high prolificacy of sows, high average daily weight gain, low conversion rate, and high slaughter yield. From 2005 to 2019, the pig production volume increased by above 2.6 times and, according to forecasts, this trend will continue. The greater domestic production contributes to a reduction in the share of imported products, which at the end of 2019 was 2.4% maximum. Complete self-sufficiency in pork, pork offal and pork fat increased the export capacity of these products to roughly100 thousand tons, with a forecast of 270 thousand tons by 2024. To achieve this indicator, however, requires the more effective use of animal genetic potential with a simultaneous decrease in production costs. A promising direction for addressing this challenge is to increase the number of weaned piglets per sow per farrowing. The current solving tools are various devices for manual and automated supplementary feeding of piglets. Their application, however, results in many stressful situations, the spread of gastrointestinal diseases and a drop in the overall litter weight. A robotic device is under development to avoid these implications and replace a sow completely and not merely provide a supplementary feeding of suckling pigs from larger litters. The robotic device operates on a cyclic algorithm, which includes the following operations: the opening of valves for supplying the ingredients to prepare a feed mixture; its direct distribution to animals; the system rinsing; functioning of electric motors for mixing the feed components; functioning of servo drives to bring the locking devices and teats to a working position; operation of relay for giving sound and light signals; switching on and off the disinfection system. The article presents a mathematical model for determining the running time of each operation within the work cycle and assessing the device’s energy consumption in general terms. The created model takes into account the change in the prepared feed mixture consumption depending on the age of the suckling pigs and allows selecting the required technological equipment for the manufacture of the robotic device’s prototype.
On the need for state support for the development of rural tourism as a type of non-agricultural activity in the Pskov Region
Authors: Petrova O G , Malkhasyan A B 
Published: April 2021

Abstract
In rural areas, new challenges are emerging caused by the crisis in the agricultural sector of the economy. Despite the fact that agriculture remains a backbone branch of the national economy and at the same time the dominant economy of the territories, the structural crisis in it, which, despite the recent successes, has not yet been overcome, entailed a serious reduction in the number of jobs. It is obvious that the economy of the economy needs a serious restructuring, but not only to find ways to diversify economic activities, but also to use the development of rural areas with alternative types of employment. The article discusses rural tourism as one of the attractive forms of non-agricultural activities in the territory of an additional settlement, provided with not only jobs, but also considered rural tourism in general: attracting investment, income. However, in modern conditions, rural areas need an impulse; they can become state support for business activity in rural areas, which will be an example of non-agricultural entrepreneurship. Creation of broad forms and types of activities at the regional level of resources, an integrated approach to the use of natural and recreational, the use and improvement of the standard of living of the rural population.