Agrobiotechnologies and digital farming最新文献

{"title":"THE INFLUENCE OF INDIVIDUAL ELEMENTS OF THE TECHNOLOGY OF CULTIVATING GALA POTATOES ON THE YIELD OF TUBERS IN THE CONDITIONS OF THE ZAKAMYE REGION OF THE REPUBLIC OF TATARSTAN","authors":"Kamil' Davletov, Farit Shaykhutdinov, I. Serzhanov, R. Garaev","doi":"10.12737/2782-490x-2024-20-25","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-20-25","url":null,"abstract":"An assessment of the impact of various areas and food conditions on potato yields in the Kama region of the Republic of Tatarstan has been carried out. It was found that on leached chernozems, as the number of tubers planted on different nutrient backgrounds increased from 30 to 60 thousand pieces/ha, the yield of potato tubers of the Gala variety increased on average over 2 years from 25.2 to 29.2 t/ha in the control, against the background of the use of fertilizers from 31.0-34.8 and 32.4-38.7 tons/ha . However, the maximum yield minus the weight of the planting material of 25.2...31.1 and 35.1 t/ha had a clear, pronounced maximum at a certain optimal planting rate of 50 thousand tubers/ha. The effect of the nutrition background on the number of stems of one bush was insignificant, however, in terms of unit area, the number of stems against the background of N60P60K90 with a planting density of 50 thousand tubers exceeded the control (without fertilizers) by 3.41 thousand pieces, and against the background of N60P60K90 - by 100 thousand pieces. + When applying 60 tons of manure, this difference amounted to 4.38 thousand pieces, which ultimately affected the formation of the tuber harvest. The largest assimilation surface – 44.6...46.7 thousand m2/ha was noted in the fertilized variants of the experiment with a planting density of 60 thousand tubers per 1 ha. The excess compared to the control was 6.3...8.4 thousand m2/ha. The use of fertilizers in potato cultivation led to a slight decrease in the starch content in tubers by 1.4...2.1% with a planting density of 50 thousand tubers per 1 hectare. As the planting density increased, regardless of the nutritional background, the starch content increased by 1.1% on the control and by 0.8...0.9% on the fertilized backgrounds.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"11 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141036129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE INFLUENCE OF VARIOUS GREEN MANURE VAPORS ON THE PROPERTIES OF GRAY FOREST SOI","authors":"R. Safin, R. Nizamov, Il'shat Vafin","doi":"10.12737/2782-490x-2024-38-43","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-38-43","url":null,"abstract":"The results of research conducted in 2023 on the fields of the Agrobiotechnopark of Kazan State Agrarian University are presented. The purpose of the research was to assess the influence of various green manure fallows on the agrophysical properties and phytopathological state of gray forest medium-loamy soil. The objectives of the research included studying the nature of changes in a number of agrophysical parameters (density, reserves of productive moisture, structure) and in the abundance of some soil phytopathogens when using pure and various green manure fallows. The steam-taking green manures were buckwheat, vetch-oat mixture, peas, white mustard, and oilseed radish. Pure steam served as control. The experiments were carried out within the framework of a long-term production hospital. The area allocated for each option was 1.5 hectares. The experiment was repeated three times. The soil of the experimental fields is highly cultivated, gray forest medium loamy. The agricultural technology for cultivating green manure crops was carried out according to the recommendations. The incorporation of green manure with legumes was carried out during their budding phase; buckwheat and cabbage green manure - during the beginning of flowering. The incorporation of green manure, especially white mustard, led to a decrease in soil density to 1.00. The highest soil structure was also observed in the variant with white mustard (76.2%). The use of white mustard and peas as green manures led, in comparison with pure steam, to an increase in the accumulation of productive moisture in the soil by 20 mm. Incorporation of buckwheat and white mustard contributed to the complete cleansing of the soil from phytopathogenic fungi. In general, among the studied fallow green manures, the best indicators for agrophysical and phytopathological properties of the soil were achieved when using white mustard.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"136 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141034500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INVESTIGATION OF THE EFFECTIVENESS OF MINERAL FERTILIZER WITH TRACE ELEMENTS OF BIOCHAR-AGRO TECHNICAL GRADE ON SPRING RAPESEED","authors":"S. Suleymanov, F. Safiollin, Ruzal' Suleymanov, Il'nur Motovalov","doi":"10.12737/2782-490x-2024-44-50","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-44-50","url":null,"abstract":"The research was carried out in order to study the effectiveness of mineral fertilizer with microelements of Biochar-Agro Technical grade on spring rape crops on gray forest soils of the Republic of Tatarstan. Field experiments were conducted in 2023 on the basis of Agrobiotechnopark LLC (Narmonka village, Laishevsky Municipal District of the Republic of Tatarstan), laboratory analyses were carried out at the Center for Agroecological Research of the Kazan State Agrarian University. According to the research results, it was found that the application of Biochar-Agro fertilizer of the Technical brand contributed to an increase in the safety of plants for harvesting by 0.8 % compared with the control variant. In addition, the studied complex fertilizer contributed to an increase in the duration of the growing season of spring rapeseed. In the 10.0 kg/ha variant, the growing season was increased by 6 days. The height of the plants increases from 116.6 cm at the control, to 123.4 cm in the last version of the experiment, which is 6.8 centimeters higher than the control. In the variant Background NPK + Biochar-Agro brand: Technical (seed application, 10.0 kg /ha), the number of weeds per 1 m2 was 8.2 pcs., which is less than the control variant by 3.2 w. or 31.7 %. The maximum number of productive branches (5.5 pcs./plant) was formed on the variant of the near-sowing application of Biochar-Agro fertilizer of the Technical brand 10.0 kg/ha. The increase in the actual yield of spring rapeseed from the application of the studied preparation ranged from 0.23 to 0.49 t /ha, depending on the rate of application of Biochar-Agro brand fertilizers: Technical.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141023301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RESPONSIVENESS OF THE NUR CORN HYBRID TO FOLIAR TOP DRESSING WITH CARBAMIDE AND GROWTH STIMULANT IZAGRI VITA IN THE SOIL AND CLIMATIC CONDITIONS OF THE REPUBLIC OF TATARSTAN","authors":"M. Mikhaylova","doi":"10.12737/2782-490x-2024-32-37","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-32-37","url":null,"abstract":"The feed potential of the universal early-maturing hybrid corn Nur was studied in the conditions of the Ancestral region of the Republic of Tatarstan on gray forest heavy loamy soils. The content of humus in the arable layer was characterized as increased by 4.4 %, mobile phosphorus as very high - more than 377 mg/kg, exchangeable potassium increased – 124 mg/kg. The soil had a medium reaction close to neutral (pH 6.3). Meteorological conditions in 2023 were characterized as arid with a lack of precipitation during the growing season of corn. To obtain high-quality feed from corn, different corn nutrition systems were studied: without fertilizers, background N16P16K16, background N16P16K16 + urea leaf dressing in the 5-7 leaf phase, background N16P16K16 + Izagri Vita leaf dressing in the 5-7 leaf phase, background N16P16K16 + Izagri Vita leaf dressing in the 5-7 leaf phase and cob formation. Izagri Vita is a growth stimulant with trace elements. Improving the nutritional conditions of corn extends the growing season by 2-3 days. Corn responds positively to the application of mineral fertilizers and carrying out leaf fertilization with carbamide. This technique ensures the formation of the highest plant height (159.7 cm) and leaf area (42.19 thousand m2/ha). The largest aboveground mass was formed on the von NPK+ variant Izagri Vita 44.50 t/ha. Biometric indicators of corn also improved on fertilized food backgrounds. The highest yield of green mass was obtained on the variants background NPK and background NPK + Izagri Vita (2 phases) (45.81 and 41.88 t/ha). The increase in yield from the applied mineral fertilizers amounted to 16.25 and 12.31 t/ha. Better nutrition of corn provides a more nutritious feed from corn. The NPK background variant had the highest mass fraction of dry matter (86.3 %), crude fiber (35.0 %), and NPK background + From graphite, where the mass fraction of nitrogen was 20.5 g/kg, crude protein 128.2 g/kg, phosphorus 1.0%.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141049336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COMPARATIVE ASSESSMENT OF THE PRODUCTIVITY OF VARIOUS GRAIN CROPS","authors":"Olga Egorova, Razina Sabirova, Il'shat Vafin, R. Safin","doi":"10.12737/2782-490x-2024-27-31","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-27-31","url":null,"abstract":"The purpose of the research was to assess the productivity and feed value (grain content and protein yield) of various grain feed crops. The objectives of the research were to identify types and varieties of grain forage crops that provide the maximum yield of vegetable protein from 1 hectare of crops. The objects of research were spring two-row barley, spring multi-row chaffy barley, spring multi-row hulless barley, and spring triticale. The research was carried out in 2023 on well-cultivated, gray forest soil of medium loamy composition under conditions of periodically dry conditions. Standard technologies for cultivating grain forage crops were used. Among spring grain feed barley, the highest indicators for yield, protein content and its collection per 1 ha were for the multi-row chaffy barley variety Tevkech. No significant differences in yield between varieties of two-row chaffy barley (Raushan, Orlan) have been established. The maximum protein content in grain (6.7% higher than the standard) among the barley varieties was in the multi-row hulless barley variety Ergeninsky holozerny, due to which the protein collection in this variant was at the level of two-row barley varieties and was slightly inferior to the indicators for multi-row chaffy barley Tevkech varieties. The spring triticale varieties UKRO and Timur were inferior in grain protein content to all variants with spring barley. The Orden variety stood out significantly among other spring triticale varieties in terms of protein content, and due to its high yield, its use resulted in the maximum amount (0.77 t) of vegetable protein being obtained from 1 hectare of crops. Thus, among the studied grain forage crops in the conditions of 2023, spring triticale of the Orden variety had an advantage.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"37 29","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141037184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INFLUENCE OF METHODS OF BASIC TILLAGE AND FERTILIZERS ON THE YIELD OF SPRING WHEAT IN THE CONDITIONS OF AF \"KOLOS\" OF THE TETYUSHSKY MUNICIPAL DISTRICT OF THE REPUBLIC OF TATARSTAN","authors":"L. Vafina, Rogat V. Minikaev, Niyaz Vafin, S. Sochneva, N. Trofimov","doi":"10.12737/2782-490x-2024-13-19","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-13-19","url":null,"abstract":"Studies on the effect of basic tillage techniques and fertilizers on the yield of spring wheat were conducted in 2022 in the conditions of the AF \"Kolos\" of the Tetyushsky municipal district of the Republic of Tatarstan, on typical chernozem soils with agrochemical characteristics for this zone: the content of humus 6.2, mobile phosphorus 153 and exchangeable potassium 149 mg per 1 kg of soil. The reaction of the soil solution is pH (salt) - 5.8 (according to the soil map and cartograms). The agro-climatic conditions of the growing season of 2022 were favorable for the growth and development of spring wheat. The timing of the onset of phenological phases, the duration of interphase periods did not depend on the methods of basic tillage, and fertilizers extended the growing season by 3 days. According to the assessment of the impact of basic tillage techniques and nutrition backgrounds on the contamination of crops, a general pattern was revealed – when using non-tillage, the level of contamination increased, and the introduction of calculated fertilizer rates increased the air-dry mass of weeds. The duration of the growing season without fertilizers was 90 days, on a fertilized background - 93 days. The best indicators of the crop structure were obtained on the option of non–fall loosening against the background of NPK by 4.0 t/ha, the number of seedlings was 470 pcs./m2, more than against the background without fertilizing by 4 pcs./m2, the number of plants for harvesting was 340 pcs./m2, (more by 19 pcs./m2), the number of productive stems – 350 pcs./ m2 (more by 23 pcs./ m2), the weight of grain from 1 ear is 1.1 g (more by 0.5 g), the weight of 1000 seeds is 42.3 g (more by 12.3 g).","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141026557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POLYMORPHISM OF LIPID METABOLISM GENES IN TATARSTAN-TYPE COWS","authors":"M. Lamara, Tahir Ahmetov, R. Shaydullin, Sergey Tyulkin, Diana Zarubezhnova","doi":"10.12737/2782-490x-2024-57-62","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-57-62","url":null,"abstract":"The purpose of the research was to study the allelic polymorphism of lipid metabolism genes (OLR1, DGAT1 and LEP) in Tatarstan type cows. The object of the study was 79 first-calf heifers of the Kholmogory breed of the Tatarstan type, kept in the agricultural production complex “Agrofirm Rassvet” in the Kukmorsky district of the Republic of Tatarstan. As a result of molecular genetic studies (PCR-RFLP and AS-PCR), the animals were divided into groups taking into account their genotype at the loci of the low-density lipoprotein receptor (OLR1), diacylglycerol-O-acyltransferase (DGAT1) and leptin (LEP) genes. Animals with different genotypes of the studied genes were further divided into groups taking into account their linear affiliation. The studied sample of first-calf heifers consisted of individuals belonging to two leading genealogical lines of the Holstein breed, namely: Wis Ideal 933122 and Reflection Sovering 198998. In general, the studies showed that in the herd of first-calf heifers of the Tatarstan type, predominated allele C (0.73) and genotype CC 49.4% for OLR1 gene; allele A (0.77) and genotype AA 57.0% for DGAT1 gene; allele C (0.59) and genotype CT 57.0% for LEP gene. In the sample under study, the genetic balance is not shifted for any of the studied genes. In cows, the frequency of occurrence of alleles of the OLR1, DGAT1 and LEP genes, depending on linear affiliation (W. Ideal and R. Sovering), the trend remains. Similar data were obtained that, taking into account belonging to the Holstein breed, the highest occurrence of alleles in first-calf heifers: C (0.68-0.81) for OLR1 gene, A (0.74-0.83) for DGAT1 gene and C (0.57 -0.60) for LEP gene, respectively.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141051158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PRODUCTIVITY AND ADAPTABILITY OF KWS WINTER RYE HYBRIDS IN THE CONDITIONS OF THE ANCESTRAL REGION OF THE REPUBLIC OF TATARSTAN","authors":"M. Amirov, Pavel Semenov, Timur Cvetkov, Guliya Sharakova, Alexander Zheltukhin","doi":"10.12737/2782-490x-2024-6-12","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-6-12","url":null,"abstract":"Increasing the grain yield of winter rye, which occupies the fourth place of grain produced in the Republic of Tatarstan, remains relevant. The purpose of the study is to identify the most productive hybrid of winter rye of the KVS company in the conditions of gray forest soils of the Ancestral region of the Republic of Tatarstan. Field experiments and laboratory studies were conducted in 2022-2023 at Agrobiotechnopark LLC at the Kazan State Agrarian University. Agrochemical indicators of gray forest soils were as follows: the content of humus in the arable layer was more than 3.0 %, mobile phosphorus was very high 250-275 mg/kg (according to Kirsanov), exchangeable potassium was increased 121-170 mg/kg. The reaction of the soil medium was close to neutral (pH 6.6). The dry mass of roots and stems in the phases of tube entry and earing over the years of research in the hybrid of winter rye Tayo exceeded the indicators of the Aviator and Ravo hybrids. On average, over two years, the dry weight of the ear of the Aviator hybrid in the phase of milk ripeness was 0.77 g, in Equal to 0.74 g, in Tayo 0.81 g. Compared with other hybrids, field germination and safety of seedlings for harvesting were higher in the Tayo hybrid by 80.9 % and 86.9 %. Increased indicators for the number of productive stems per unit area of 584 pcs./m2, the number of spikelets and grains in 1 ear for the Tayo hybrid subsequently contributed to obtaining the highest biological yield. In a favorable 2022, winter rye hybrids generated high yields, in particular Aviator 8.05 t/ha, Pravo 8.06 t/ha, Tayo 8.74 t/ha. In 2023, the lowest yield according to experiments was obtained for the Ravo hybrid – 5.44 t/ha, and for the Aviator hybrid - 6.62 t/ha. A consistently high yield was formed by the Tayo hybrid – 7.03 t/ha.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":"25 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140671141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Productivity of cows with different combinations of lines","authors":"C. Kharisova, R. Shaydullin, Tahir Ahmetov","doi":"10.12737/2782-490x-2024-71-75","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-71-75","url":null,"abstract":"The purpose of the study was to study the milk productivity of cows with different combinations of lines. The object of the study were first-calf cows of the black-and-white breed of the line Vis Back Aidiala 101341, Reflection Soveringa 198998, Montvik Chiefteina 95679. Cows obtained by intraline selection of the Aidial line have a high level of milk productivity, with milk yield of 5571 kg of milk, milk fat yield of 226 kg and protein yield of 171 kg, while significantly (P<0.05-0.01) superior to first-calf heifers, belonging to the Sovering line for 102 kg, 4 kg of fat and 4 kg of protein, and to the Chieftain line - for 259 kg of milk, 16 kg of fat and 11 kg of protein, respectively. When crossing the Ideal-Sovering lines, the highest milk yield is observed (5667 kg), with good milk fat content (4.01 %), high yield of milk fat (227 kg) and milk protein (172 kg). With the reverse cross Sovering-Idial, slightly lower milk productivity rates were obtained. When using bulls of the Aidial line on cows of the Governer line, high milk fat content (4.07 %) and milk fat yield (228 kg) were obtained, with average values of milk yield (5596 kg), protein mass fraction (3.01 %) and its yield (168 kg). Unsuccessful combinations of lines in both forward and reverse directions are crosses of the Idial and Chieftain lines. The descendants of such combinations have the lowest milk productivity. Thus, the use of line manufacturers R. Sovering and V.B. Idiala, both with intraline selection and interline combination, gives the best milk productivity indicators. Consequently, it is necessary to evaluate bulls according to the compatibility of lines; this has a great influence on the productivity of the offspring, since sires of the same line, when inseminating cows of the same lines, produce offspring of different productivity.","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139624433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil cover and humus state of armable soils of the Volga Republic of Tatarstan","authors":"M. Gilyazov, Anas Lukmanov, Daynis Zaripov","doi":"10.12737/2782-490x-2024-18-25","DOIUrl":"https://doi.org/10.12737/2782-490x-2024-18-25","url":null,"abstract":"The purpose of the study is to assess the dynamics of the humus state of arable soils in connection with the distribution features of soil types and subtypes in the municipal regions of the Volga region of the Republic of Tatarstan (RT). The territory of the Volga region occupies 1014.3 thousand hectares, which is about 15% of the area of the Republic of Tatarstan. The Volga region includes 8 municipal districts: Apastovsky, Buinsky, Verkhneuslonsky, Drozhzhanovsky, Zelenodolsky, Kaybitsky, Kamsko-Ustinsky and Tetyushsky. The results of soil and agrochemical surveys conducted by the Federal State Budgetary Institution CAS “Tatarsky” over the past 35 years are summarized. For the first time, arable soils of the studied region were examined for humus content in 1986-1990. (IV cycle of agrochemical examination). The determination of humus was carried out according to the method of I.V. Tyurin as modified by TsINAO (GOST 26213-91). It has been established that the soil cover of two municipal districts (Buinsky and Drozhzhanovsky) is dominated by highly fertile chernozems, and the remaining six districts are dominated by gray forest soils. A comparison of the distribution of the main soil types in the Volga region and in the Republic of Tatarstan as a whole shows that the region under study appears to be a miniature copy of Tatarstan: in both cases, gray forest soils are dominant, and chernozems are subdominant. It is noted that over 35 years, the area of arable land in the region has decreased by 57 thousand hectares, presumably due to the withdrawal of less fertile land from agricultural use. It is indicated that this circumstance to a certain extent stabilized the humus state of the soils remaining in the arable land. The weighted average content of humus in the arable layer according to the cycles of agrochemical survey of soils in the studied region varied from 4.42 to 4.82%, however, these fluctuations turned out to be statistically insignificant (r = -0.06). There was a positive correlation and the highest degree of dependence of the weighted average humus content on the total share of chernozem and dark gray forest soils (R²=0.96).","PeriodicalId":198484,"journal":{"name":"Agrobiotechnologies and digital farming","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139625171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}