The influence of agro-climatic conditions on the fatty acid composition of soybeans of the northern ecotype

In terms of biological value and quality, soy fat meets the standard of the Food and Agriculture Organization of the United Nations and the World Health Organization. The aim of the study was to identify agro-climatic factors that affect the fatty acid composition of soybean seeds of the northern ecotype and to determine the variety that most corresponds to the group of food fat quality. Field experiments were conducted in 2017–2019 in the Ryazan region at the experimental base of the Institute of Seed Production and Agricultural Technologies-a branch of the FGBNU FNAC VIM. Varieties and forms of soybeans of the northern ecotype – Light, Mageva, Okskaya and M-52-were selected as objects of research. The results of the study. The average yield of soybean seeds for three years of research was from 1.81 to 2.57 t / ha for varieties, the fat content in the seeds was 19.4–21.5 %, the total harvest was 357–548 kg/ha. The fat of soybean seeds of varieties and forms of the northern ecotype contained 11.36–11.43 % palmitic acid and significantly less oleic acid-7.43–11.27 %. While in traditional varieties, the values of these indicators were 9.75 % and 24.80 %, respectively. In conditions of sufficient moisture (2017), the predominance of saturated palmitic acid in the fatty acid composition of seeds was observed, and in dry years (2018–2019) – unsaturated fatty acids – oleic, linoleic and linolenic, their sum was 73 % in dry years, with sufficient moisture – 67 %. Better illumination of the upper tiers of plants contributed to the activation of the synthesis of unsaturated fatty acids. It was found that, according to the fatty acid composition, the Light soy variety is more close to the varieties of soy for food purposes.

Commodity examination of the Lena sturgeon after the use of the feed additive "Reasil ® Humic Health" in the diet

The article presents studies on the evaluation of the commercial qualities of the Lena sturgeon when using the feed additive "Reasil ® Humic Health" in its diet. The obtained data allow us to conclude that the addition of the Reasil ® Humic Health feed additive based on unmodified microporous humic acids from leonardite to the granulated compound feed has a positive effect on the growth and development of the Lena sturgeon and increases their yield of edible body parts by 1.74 %, while not adversely affecting the anatomical state of the internal organs of the fish and contributing to the development of the internal organs of the Lena sturgeon. The results of the chemical analysis allow us to say about the intensive metabolism in the body of fish that received a feed additive and the deposition of a larger amount of dry matter in their muscle tissue.

Results of ecological testing variety numbers of fiber-flax cultivars for yield and adaptability in the conditions of the non-chernozem zone of the Russian Federation

The article presents the results of an ecological test of selection numbers of fiber-flax (Linum usitatissimum L.), bred in the conditions of the North-Western region, on the yield of flax fiber and the parameters of adaptability in the conditions of the Central Non-chernozem region. We tested 3 variety numbers: LS-1, LS-2 and LS-3. As a standard, we used a highly productive Impulse variety zoned in the region, of domestic selection, which was entered in the State Register of Breeding Achievements in 2003. According to the results of the studies, high adaptability in combination with potential productivity was obtained in the number of fiber-flax LS – 3 (1,14). Under variable meteorological conditions, the LS – 2 variety number and the Impulse variety had high resistance to stress (- 0.21 - 0.02, respectively). The most productive in contrast conditions was LS-3 (1.84 t / ha). The numbers LS – 1 (2.20) and LS – 3 (1.60) were the most responsive to the improvement of cultivation conditions.

Features of the calculation of individual fire risk at agricultural facilities

The article is devoted to the problem of ensuring fire safety at the objects of the agro-industrial complex. Modern approaches to ensuring fire safety make it possible to assess compliance with fire safety requirements based on fire risk calculations. The conducted studies revealed the features of calculating the individual fire risk and found that there is a need to adjust the methodology for calculating the fire risk for agro-industrial complex objects, which would take into account all the necessary factors.

Features of the formation of spring wheat grain yield in the Volga region

The results of the study of five seeding rates (variants) in the cultivation of spring durum wheat Bezenchukskaya Niva with seed treatment with Scenic Combi preparation (1.4 l/t) in order to identify the optimal rate are presented. On ordinary chernozem for 2017-2020 in the arid conditions of the Volga region, it was found out that when growing a crop for winter wheat, a decrease in seeding rates contributed to an increase in the coefficient of total and productive bushiness, the weight of grain from the ear and plant, the number of grains from the ear. On average, over the years of research, the yield of spring wheat grain at seeding rates of 2.0-5.0 million/ha was 2.00-2.22 t / ha. Under favorable weather conditions, the yield advantage was the norm of 4.0-5.0 million/ha by 6.2-37 %, in the acutely arid 2.0-3.0 million / ha by 3.4-16.4 % more, compared to other options. Wheat yield was most affected by the air temperature during the growing season (r=-0.97* to -0.99*). Of the elements of the structure, the maximum conjugacy with the yield at the norms of 1.0-4.0 is noted with the number and weight of grain from the ear and plant, the height of the plants (r=0,97*-1,0**). On average, over the years of research, the highest net income was established on the variants with the norm of 3.0-4.0 million / ha-17100.4-17442.8 rubles / ha, which is 761.9-1704.7 rubles/ha (4.7-10.8 %) more than the variants with the norm of 2.0 and 5.0 million/ha. The maximum level of profitability was revealed at the rate of 1.0 million / ha-194.6 %, which is 9.6-41.3% more than the options with the rate of 2.0-4.0 million / ha. Based on the conducted research, the seeding rate of 2.0-4.0 million/ha is recommended for the cultivation of spring durum wheat for commercial purposes. In the original seed production – 1.0 and 2.0 million/ha, providing a multiplication factor of up to 57.8 kg/kg of grain.

Spreading dynamics of mixed invasions (eimeriosis, helminthiasis ) in domestic chickens in Azerbaijan

Based on the results of the study, eimeriosis are widespread in poultry farms. They are also found in the form of polyinvasion mixed with helmintiasis. During the study of eimeriosis of domestic chickens, associative invasions such as eimeriosis-ascaridiosis-heteracidosis, eimeriosis-ascaridiosis- capillariosis were identified. It were detected infection with mixed invasion– with eimeriosis 39,3%, ascaridiosis 30,9%, heteracidosis 35,1% in Tovuz district, with eimeriosis 34,5%, ascaridiosis 23,0%, heteracidosis 27,8% in Gazakh district. ?t were explored infection with eimeriosis, ascaridiosis, capillyariosis in other farms of Tovuz and Gazakh district. In poultry farms of Tovuz district were detected infection with mixed invasion with eimeriosis 36,6%, with ascaridiosis 22,4%, with capillyariosis 16,3%. In Gazakh district were detected infection eimeriosis 30,3%, ascaridiosis 18,7%, capillyariosis 13,3%.

Evaluation of the spring soft wheat collection in the conditions of the central region of the non-chernozem zone of Russia

The results of a study of 12 varieties of spring soft wheat in the conditions of Central region of the Nonchernozem zone of Russia in 2019-2020 are presented in order to isolate the most valuable source material in terms of yield and grain quality. A comprehensive assessment of economically useful traits was carried out - yield, resistance to fungal diseases and lodging, protein and gluten content, an assessment of baking qualities was carried out. Also, all varieties of the spring soft wheat collection were evaluated by the index method, and an index evaluation was carried out. It was found that the Ekada 66 variety (613.4 g / m2) is significantly more productive in comparison with the standard Zlata variety (449.9 g / m2). The varieties Hercules, KVS Akvilon, Ekada 109, Tyumenskaya 25, Chernozemno-Uralskaya 2 and Sudarynya also showed high yields, which are at the standard level. It was revealed that the varieties Hercules, KVS Akvilon, Ekada 109 and Ekada 66 were characterized by complex resistance to lodging and the main fungal diseases against a natural infectious background. It was found that the varieties Heracles, Kinelskaya Otrada, KVS Akvilon, Ekada 113 and Tyumenskaya 25 have the highest values of the complex indices, therefore, these varieties are recommended to be used in further breeding for high yield and grain quality.

Investigation of the microrelief of the soil layer surface and its effect on the strength of soil resistance to tillage

The lack of the operating elements strength calculating methods providing sufficient accuracy of the results is a significant problem in modern agricultural machinery development. The using calculation models do not take into consideration the microrelief of the treated surface, which leads to a significant error in determining both extreme and long-term loads on the working bodies of mechanisms. In this article author analyzes the cultivated soil treated surface microgeometry influence on the forces arising in the tillage tool. The existing design model is considered on the needle harrow example, its disadvantages are indicated and a way to eliminate them is proposed. Experimental data on the soil surface profile microroughnesses size study are presented, regularities of the microroughnesses random distribution are revealed, in particular, the assumption of the normal nature of this distribution is confirmed. The dependences based on the obtained data are proposed for a more accurate acting on the tillage tool loads calculation.

THE GROWING TECHNOLOGY OF MIXED SEEDED PLANTS AT STUBBLE-FIELD

One of the main measures to increase production in the field of grain and feed production in our republic is to increase the yield of grain and forage crops on plantations.The purpose of our research work is to study the effect of fertilization and irrigation rates on the yield, crop quality and soil fertility of crops sown in a mixture when planting honeysuckle. The results of research conducted in world agriculture show that mainly the yield and composition of mixed crops, the quality indicators of which depend on the components of the crops to be sown, their seeding rate and cultivation technology. As a result of studies conducted in the conditions of ancient irrigated gray-meadow soils of the Karabakh region of our republic, it was found that with 4 - fold vegetation irrigation (4200 m3), the yield of mixed sowing in the control version without fertilizers was 372 c/ha, while under the influence of mineral and organic mineral fertilizers, the yield increased and amounted to 447-627 c/ha. Based on the results of the study, it can be said that in order to obtain a high yield of green mass with the joint sowing of corn and soybeans, the optimal irrigation and fertilizer application rates were determined, the highest indicator was achieved in the variant where the fertilizer standards N120P150C150 were applied. In the course of the study, the influence of fertilizer application rates and optimization of the amount of irrigation on the quality indicators of feed, as well as on the yield obtained from mixed crops, was studied. As a result of the conducted analyses, the amount of raw protein, absolute dry matter, nitrate nitrogen in the natural mass, the yield of feed units per hectare and the amount of protein going for digestion were determined. Thus, the application of fertilizers within the optimal limits and the correct, timely supply of irrigation standards significantly increase the quality of the crop on a par with the yield on mixed crops, the soil fertility is preserved.

Comparative effectiveness of flea allergic dermatitis treatment regimens in dogs and cats

The article discusses the influence of external factors on the degree of risk of infection with flea allergic dermatitis among pets. Studied modern veterinary drugs that can be used to treat and prevent flea allergic dermatitis caused by flea lesions. Also, effective regimens for the treatment and prevention of flea allergic dermatitis have been drawn up. It was found that the preparation in the form of a collar is less effective than preparations in the form of "Spot-on". A flea collar is also less effective in dogs with thick coats. The drug in the form of "Spot-on" contact action begins to act after 12 hours, in contrast to the collar, which begins to act in full force after two days. The peculiarity of the form of release of the drug "Spot-on" allows it to evenly disperse on the skin of the animal and prevent a flea bite. This leads to rapid relief of itching and excludes new scratching. The tablet form does not fully protect against flea bites, which leads to a new outbreak of dietary supplements in the animal. The use of Spot-on drops in one of the group of subjects and the collar in the other group increased the effect of protection against flea bites and reduced the risk of developing dietary supplements in dogs. For cats, it is recommended to regularly treat fleas with the Spot-on contact action drug, the effectiveness of which has been proven by a decrease in the number of fleas in animals after the first day of treatment, in contrast to the form of release of the drug in the form of a collar. Droplet formulations in cats have also been shown to reduce itching and scratching.