scholarly journals Number and taxonomic structure of blood-sucking insects community in the forest-steppe zone of Tyumen Region

2019 ◽  
Vol 9 (4) ◽  
pp. 542-546
Author(s):  
T. A. Khlyzova
Keyword(s):  
Hydrological Regime ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Limiting Factors ◽  
Forest Steppe ◽  
Taxonomic Structure ◽  
Left Bank ◽  
Average Temperature ◽  
Blood Sucking ◽  
The Impact

The abundance level of blood-sucking Diptera is, to a large extent, determined by natural and climatic conditions and hydrological regime of rivers, and is subject to significant fluctuations. In order to assess the impact of meteorological conditions of the season on the abundance of blood-sucking Diptera, the abundance ratio of horseflies, mosquitoes, blackflies and midges in the forest-steppe zone of Tyumen Region for 2006, 2013-2017 was compared. The study was performed in the surroundings of Isetskoye Village and Barkhatovo Village in Isetsky District of Tyumen Region. This area belongs to the province of Tobol forest-steppe. The study area is located on the left bank of Iset river. The forest-steppe zone is located in the south of the region. The region has very cold winters, the average temperature in January is -18-20ºС. The summer season lasts about 125 days, the average temperature in July is +19-20ºC. Spring and autumn seasons are short. The region is characterized by late frosts in spring until the end of the first decade of June and early autumn, and sometimes in late August. Analysis of data obtained showed that of the six seasons studied the largest gnus abundance was registered in 2014, the minimum abundance was in 2006. The abundance level and the individual components ratio of «GNUS» complex were subject to significant changes depending on the season, in 2006 and 2014, the blackflies were mostly collected, and in 2013, 2015-2017 – mosquitoes. Meteorological and hydrological conditions of winter and spring seasons have the greatest impact on the level of insect populations of «gnuts» complex. Seasonal fluctuations in abundance of blackflies was 3 times, midges ‒ 9, horseflies and mosquitoes ‒ 10. The main limiting factors for the mass development of blood-sucking Diptera in the forest-steppe zone of Tyumen Region are hard and dry winters that cause insect death at the pre-imaginal stages of development, as well as huge temperature swings in spring and summer and small areas of breeding grounds.

scholarly journals The number of insects of midges complex and ratio of its various components in the forest-steppe zone of the Tyumen Region

2021 ◽  
Vol 15 (1) ◽  
pp. 62-70
Author(s):  
T. A. Khlyzova
Keyword(s):  
Hydrological Regime ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Limiting Factors ◽  
Forest Steppe ◽  
Summer Period ◽  
Emergence Period ◽  
Small Areas ◽  
Blood Sucking ◽  
Preimaginal Stages

The purpose of the research is comparing abundance levels of blood-sucking dipterans in the forest-steppe zone of the Tyumen Region for 8 years with different meteorological conditions.Materials and methods. The studies were carried out in 2006 and 2013–2019 in vicinity of the villages of Isetskoe and Barkhatovo, Isetsky District, Tyumen Region. Tabanid flies were collected and counted using funnel-shaped traps permanently on the same pasture on a regular basis once every 5–7 days during the entire emergence period. When counting the number of mosquitoes, midges and sandflies, we used a net with removable bags. Each count included 10 sweeps with a motion of the figure eight "around itself" in 10 replications.Results and discussion. The abundance of blood-sucking dipterans is largely determined by natural and climatic conditions and a hydrological regime of rivers, and is liable to significant fluctuations. The maximum abundance of gnats was recorded in 2014, the minimum in 2006. In comparing the average number for seasons with maximum and minimum abundance, a difference of 3.7 times was found. The abundance level and ratio of individual components of the midges complex depending on the season also underwent significant changes. In collected insects, midges dominated in 2006 and 2014, and mosquitoes in 2013 and in 2015–2019. Meteorological and hydrological conditions in winter and spring had the biggest impact on the abundance level of insects of the midges complex. Fluctuations in the abundance were 9 times for mosquitoes, 20 times for tabanid flies, and 39 times for midges and sandflies depending on the season. The main limiting factors for mass development of blood-sucking Diptera in the forest-steppe zone of the Tyumen Region are hard and dry winters which cause death of some insects at the preimaginal stages in development, as well as sharp changes in air temperature in the spring-summer period and small areas of breeding places.

scholarly journals Ефективність застосування водорозчинних добрив під основні сільськогосподарські культури за умов зміни клімату

2013 ◽  
pp. 89-92
Author(s):  
Л. Д. Глущенко ◽  
Р. В. Олепір ◽  
О. І. Лень ◽  
В. М. Вакуленко ◽  
Б. Б. Котвіцький
Keyword(s):  
Weather Conditions ◽  
Steppe Zone ◽  
Significant Rise ◽  
Water Soluble ◽  
Forest Steppe ◽  
Left Bank ◽  
Growing Period ◽  
Average Temperature ◽  
Leading Role ◽  
Quality Of Products

За останні роки на Полтавщині в погодних умовах суттєво змінилися температурний і водний ре-жими. Протягом веґетаційного періоду 2008–2012 років спостерігалося підвищення середньомісячної температури на 1,8 0С, що більше на 13,1 % від середньої багаторічної норми та зменшення кіль-кості опадів на 72,5 мм, або на 23,2 %. Важлива роль у підвищенні продуктивності сільськогоспо-дарських культур належить добривам. В умовах значного подорожчання енерґоносіїв та агрохімі-катів позакореневі підживлення комплексними водорозчинними добривами стають особливо ак-туальними. Застосування цього агрозаходу в умо-вах Лівобережного Лісостепу України за нестабі-льного зволоження дає можливість підвищити продуктивність пшениці озимої на 25,8 %, кукуру-дзи зернової на 12,7 %, буряків цукрових на 15,7 % і суттєво поліпшити якість продукції. Temperature and water regimes have changed over the past few years in Poltava in the weather conditions. So during the growing period of 2008–2012, an increase in the average temperature of 1.8 0C, an increase of 13.1% from the average long-term rates and a decrease in rainfall at 72.5 mm, or 23.2% was observed. The leading role in increasing the productivity of crops belongs to fertilizers. With the significant rise in price of energy and agrochemicals, foliar feeding by complex water-soluble fertilizers becomes particularly relevant. The use of this agro method in the left-bank forest-steppe zone of Ukraine with not persistent moisture makes it possible to increase the productivity of winter wheat by 25.8%, corn grain by 12.7%, sugar beet by 15.7%, and significantly improve the quality of products.

scholarly journals Prevailing forest types in the river catchments within the Left-Bank Forest-Steppe zone, Ukraine

2020 ◽  
Vol 62 (2) ◽  
pp. 100-113
Author(s):  
Oleksandr Bondar ◽  
Maksym Rumiantsev ◽  
Liudmyla Tkach ◽  
Iryna Obolonyk
Keyword(s):  
Forest Management ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
The State ◽  
Forest Steppe ◽  
Left Bank ◽  
Forest Types ◽  
Natural Conditions ◽  
Catchment Areas ◽  
River Catchments

AbstractThe aim of the study was to determine the distribution of prevailing forest types within the catchment areas of the biggest rivers in the north-east of Ukraine. During the allocation of the catchment areas of the studied rivers, the MapInfo Professional 12.5 program and the vector map of Ukraine were used. The research covered the forest area (more than 502,000 ha) of the state forest enterprises managed by the State Forest Resources Agency of Ukraine. The studied area located on the tributaries of the Sula, Psel, Vorskla and Siversky Donets rivers within the Poltava, Kharkiv, Sumy, Chernihiv, Kyiv and Cherkasy administrative regions of Ukraine. The analysis of the forest fund was carried out based on the electronic subcompartment database of the Ukrderzhlisproekt Production Association, using the application software and geoinformation technologies. It was revealed that a large variety of forest types in the tributaries of the Sula, Psel, Vorskla and Siversky Donets rivers as well as the prevalence of fresh fertile maple-lime oak and fresh fairly infertile oak-pine forest types (in 75 tributaries of Psel, Vorskla and Siversky Donets rivers) and fresh fertile maple-lime oak and fresh fertile hornbeam oak forest types (in 20 tributaries of the Sula River) are due to the relief, hydrological and soil-climatic conditions of the studied area, as well as anthropogenic factor. Assuming homogeneous natural conditions, an insignificant number of forest types are formed (up to five). For a large variety of natural conditions, there are at least six forest types that should be taken into account during forest management, along with the characteristics of the catchment areas of tributaries. The analysed data on the total number of forest types in the catchments of rivers would be appropriate to use in the future when creating a single list of forest types for the Left-Bank Forest-Steppe zone of Ukraine. The prevalence of certain forest types within the catchment areas of tributaries of the Sula, Psel, Vorskla and Siversky Donets rivers directly depends on the soil and climatic conditions, geomorphological structure, relief and anthropogenic influence in the forests. The results should be used in forest management activities to preserve and restore the species diversity of forests within the river catchments.

scholarly journals DEVELOPMENT AND FORMATION OF ARCHITECTURAL AND CONSTRUCTION TRADITIONS OF THE STEPPE AND FOREST-STEPPE ZONES OF EASTERN EUROPE FROM THE 5TH TO THE 7TH CENTURIES

2020 ◽  
pp. 188-195
Author(s):  
N.V. Polshikova ◽  
Keyword(s):  
Eastern Europe ◽  
Middle Ages ◽  
Main Type ◽  
Early Stage ◽  
Early Period ◽  
Steppe Zone ◽  
Northern Region ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Left Bank

This article is the fourth of the general topics«Development and formation of architectural and construction traditions of the steppe and forest-steppe zones of Ancient Russia. In the process of studying historical and archaeological facts, tere arefollowing:The main type of settlements of the early medieval period of the 5th-7th centuries in all territories of Slavs' residence –uninhibited villages along the banks of rivers and lakes on low floodplain terraces with an area of 0.25-1.0 ha, but in Moldova -up to 1.2 ha, in Podolia –up to 1.5 ha, inSmolensk –up to 7.0-8.0 ha. In the Upper Dniester and Upper Dnieper, the location of settlements is «nesting» with a distance between «nests» of 0.3-0.5 km. Layout –ordinary along the coast according to the terrain. Settlements of 3 types: tribal trade and craft centers, shelters and religious centers. Refuge settlements were built in the Upper Dnieper Left Bank, in the Upper reaches of the Western Dvina, in the borderland with Finno-Ugric and Germanic tribes, especially in the Upper Oka basin, where the main type of settlement settlements. They are trade and craft centers of permanent residence, asylum-fortifications were built separately.Placement of settlements -suburban protected areas, additional fortifications -ramparts and ditches, wooden walls with crates along the inner perimeter of the walls, their area is 0.2 -0.3 ha. Ancient settlements-cult centers inSmolensk region had similar fortifications.Dwellings –everywhere rectangular plans (or close to them, with gable roofs covered with a layer of clay or resin, rammed earthen floors.Space-planning decisions in all territories of Slavs' residence are of the same type, the differences are only in wall designs, which depended on climatic conditions, and in the placement of heating devices: among Slavs, stove-stoves and clay in the corner of dwellings, among neighbors of the Slavs (Balts and Finns) –foci in the middle of dwellings.So in the Southern region there are half-dugouts and ground pillars and log houses with a hearth in the center or a stove with a stove in the corner of the outbuilding.In the Northern region there are rectangular log cabins with astove in a corner. In the Western region, there are half-dugouts and terrestrial columnar and log-house constructions with centers in the center or a stove-heater in the corner.Definitely religious buildings –pagan luminaries. Found only in the Smolenskregion. They are round, rammed, a platform with a diameter of 6 m, along the edge of which is in the center of the site.The burial facilities of the early period of the Slovenian middle ages ubiquitous soil burial grounds and mounds are mainly accordingto the rite of incineration.Thus, the construction and architecture in all areas of the Slavs and their immediate neighbors to the VIII century –of the same type. This situation in the Steppe continued in the Middle Ages, when the Turkic-speaking Huns invaded the Steppe in the Middle of the 4th century wich is putting an end to the centuries-old domination of the Iranians and causing the grandiose movement of European peoples –«The Great Relocation».Development and formation of architectural and construction traditions of the steppe and forest-steppe zones of Eastern Europe from the 5th to the 7th centuries –The early stage of the early Slavic Middle Ages –is considered separately for the forest-steppe and steppe zones. The development of constructionin the steppe zone, through which the namada of the Hun circle moved west, is represented only by random mounds, often inlets, left in the Steppe from the previous time. All types of structures of the settled population of the forest-steppe zone that havedeveloped earlier were developed in this period. The early Slavs, the formation of whose ethnicity began in the III century. BC., to the V century. n. e. the main types of buildings have developed, which have had a special development since the 5th century. n. e.

scholarly journals Climate change impact on millet productivity in the forest-steppe zone of Ukraine

2020 ◽  
pp. 63-73
Author(s):  
N. V. Danilova
Keyword(s):  
Climate Change ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Future Climate Change ◽  
Forest Steppe ◽  
Impact Of Climate Change ◽  
Growth Development ◽  
Drought Resistant ◽  
The Impact

Negative impact of climate change on crop yields is already an established fact. This is mainly due to rising temperatures and increasing likelihood of droughts. However, in some regions there is an increase of certain crops yields, especially the drought-resistant ones and this determines the need for research of agro-climatic conditions for formation of such crops' yield. This article presents the results of the study of agro-climatic conditions for formation of millet crops, one of the most drought-resistant crops in the forest-steppe zone of Ukraine, affected by climate change. It considers temperature, radiation and humidification regimes of millet crops. The research of the impact of climate change on the growth, development and formation of millet crops is conducted according to the scenarios of future climate change RCP4.5 and RCP8.5 for a thirty-year period (2021-2050) divided into three decades: 2021-2030, 2031-2040 and 2041-2050. The period from 1986 to 2005 is a basic period. The average long-term agroclimatic data for the forest-steppe zone of Ukraine observed in this period are used. The calculations were performed using the model of crop productivity formation which was modified and adapted to millet crop. The block diagram of the model of millet productivity formation includes blocks of main physiological processes of millet (Panicum miliaceum L.) vital activity: photosynthesis, respiration, growth, development and also includes a hydrometeorological block. It is assumed that the average air temperature will decrease in all three ten-year periods of both scenarios, compared to the accepted long-term averages. The results of calculations showed that in all ten-year periods of both scenarios there is an increase in millet yield compared with the average long-term data (1986-2005). The highest yield is formed according to the RCP8.5 scenario over the period from 2041 to 2050 and is expected at the level of 29.2 c/ha which is 19% higher than the current one.

Relevance of enrichment of landscaping plantings with lianas in the conditions of urban ecosystems of the Saratov region

2019 ◽  
pp. 21-38
Author(s):  
А.В. Терешкин ◽  
А.Л. Калмыкова ◽  
Т.А. Андрушко
Keyword(s):  
Species Composition ◽  
Urban Areas ◽  
Normal Growth ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Phaseolus Coccineus ◽  
Morning Glory ◽  
Forest Steppe ◽  
Residential Areas ◽  
Saratov Region

Вертикальное озеленение с участием различных видов лиан в современных условиях имеет важное эстетическое и санитарно-гигиеническое значение. Особо актуально решение вопросов обогащения флоры городских территорий лианами в степных районах в связи с бедным видовым составом и резким ухудшением экологической ситуации. Объектами исследований являлись 7 видов лиан, различных жизненных форм (однолетние, многолетние), произрастающие в населенных пунктах Саратовской области (Аткарск, Саратов). Цель исследований – изучение эколого-биологических особенностей и мелиоративных свойств лиан и выявление перспектив их использования в вертикальном озеленении селитебных территорий Саратовской области. В ходе исследования видового состава, были выявлены наиболее популярные виды однолетних лиан: ипомея красно-голубая (Ipomea tricolor (L.) Roth) и ипомея пурпурная (Ipomea purpurea (L.) Roth), горошек душистый (Lathyrus edoratus L.), настурция (Tropacolum peregrinum L.) и фасоль огненно-красная (Phaseolus coccineus). Большинство (70%) из них произрастают в местах ограниченного пользования. Изученные виды лиан в исследуемых регионах достигают средних природных показателей (при наличии надлежащего ухода), обладают хорошими показателями жизненного состояния, обильно цветут и плодоносят. При воздействии токсикантами различной концентрации на листовые пластинки лиан установлено их степень устойчивости. Выявлено, что однолетние лианы лучше использовать в декоративных целях, а не в санитарно-гигиенических. Сравнительная оценка однолетних видов с многолетними лианами (девичий виноград пятилисточковый и клематис тангутский) показывает устойчивость многолетних видов (в среднем на 3 балла - 40%). Разработаны варианты декоративных композиций с участием травянистых лиан. По степени декоративности выделены однолетние лианы – Ipomea tricolor, I. purpurea (37 – 41 балл), средней степенью отличаются – Lathyrus edoratus (33 балла), Tropacolum peregrinum (30 баллов) и Phaseolus coccineus (20 – 27 баллов). Преимущество многолетних лиан заключается в их устойчивости к резким изменениям климатических условий (на 40 %) по сравнению с однолетними формами. Поэтому они более предпочтительны для озеленения городской среды. Для усиления декоративного эффекта в сезонном аспекте рекомендуются сочетать расширение видового и формового разнообразия растений (многолетние и однолетние лианы, древесно-кустарниковая, цветочная растительность). Установлено, что природно-климатические условия зоны степи и лесостепи в пределах Саратовской области являются достаточно благоприятными для нормального роста и развития древесно-кустарниковой растительности, в том числе травянистых лиан. Таким образом, обоснованное применение древесных лиан в комплексе с традиционными видами насаждений позволит создать комфортные условия проживания населения, регулировать оптимальный температурный баланс и создавать благоприятные микроклиматические условия. Vertical gardening with different types of vines in modern conditions is important aesthetic and sanitary-hygienic value. It is especially important to address the issues of enrichment of the flora of urban areas with vines in the steppe regions due to poor species composition and a sharp deterioration of the ecological situation. The objects of research were 7 species of lianas, various life forms (annual, perennial), growing in the settlements of the Saratov region (Atkarsk, Saratov). The aim of the research is to study the ecological and biological features and reclamation properties of vines and identify the prospects for their use in vertical gardening residential areas of the Saratov region. In the study, species composition was the most popular species of annual vines: morning glory red-blue (Ipomea tricolor (L.) Roth) and purple morning glory (Ipomea purpurea (L.) Roth), the fragrant pea (Lathyrus edoratus L.), nasturtium (Tropacolum peregrinum L.) and runner beans (Phaseolus coccineus). Most (70%) of them grow in restricted areas. Studied species of vines in the study regions reach average natural performance (with proper care), have good indicators of vital condition, bloom abundantly and bear fruit. When exposed to toxicants of different concentrations on the leaf blades of vines established their degree of stability. It was revealed that the annual vines are better used for decorative purposes, and not in the sanitary-hygienic. A comparative assessment of annual species with perennial vines (maiden grapes and clematis Tangut) shows the stability of perennial species (an average of 3 points-40%). The options and decorative compositions with the participation of herbaceous vines. According to the degree of decoration of the allocated annual vine – Ipomea tricolor, I. purpurea (37 – 41 points), the average degree of differ – Lathyrus edoratus (33 points), Tropacolum peregrinum (30 points) and Phaseolus coccineus (20 to 27 points). The advantage of perennial vines is their resistance to sudden changes in climatic conditions (40 %) compared to annual forms. Therefore, they are more preferable for greening the urban environment. To enhance the decorative effect in the seasonal aspect, it is recommended to combine the expansion of species and form diversity of plants (perennial and annual lianas, tree and shrub, floral vegetation). It is established that the climatic conditions of the steppe and forest-steppe zone within the Saratov region are quite favorable for the normal growth and development of tree and shrub vegetation, including herbaceous lianas. Thus, the reasonable use of wood vines in combination with traditional types of plantings will create comfortable living conditions for the population, regulate the optimal temperature balance and create favorable microclimatic conditions.

scholarly journals USE OF FOREST SITE CAPACITY BY FORESTS OF UKRAINE

2018 ◽  
pp. 3-12 ◽  
Author(s):  
V. P. Tkach ◽  
O. V. Kobets ◽  
M. G. Rumiantsev
Keyword(s):  
Steppe Zone ◽  
Pine Forests ◽  
Management Systems ◽  
Forest Steppe ◽  
Forest Site ◽  
Left Bank ◽  
Forest Types ◽  
Natural Zones ◽  
The Right ◽  
Common Oak

The forest site capacity using was quantitatively assessed for the stands of the main forest-forming species of Ukraine, Scots pine and common oak, taking into account natural zones and forest types. The tables of productivity of modal and highly productive pine and oak stands have been developed. It has been found that the stands use an average of 50–75 % of the forest site capacity of lands. The average weighted value of the capacity used by pine forests was 68–76 % in the Polissya zone, 70–78 % and 68–73 % in the Right-bank and Left-bank Forest-Steppe zones respectively, and 54–78 % in the Steppe zone. For oak stands, the value was 71–75 % and 63–71 % for the Right-bank and Left-bank Forest-Steppe zones respectively and 65–75 % for the Steppe zone. The basis for increasing the productivity of forests was confirmed to be the differentiation of forest management systems and individual forestry activities on a zonal and typological basis.

scholarly journals Modification of the methodology for ssessing the viability of introduced species in accordance with the conditions of dry steppe zone of the Orenburg region

2021 ◽  
Vol 54 (2) ◽  
pp. 57-62
Author(s):  
Daria G. Fedorova ◽  
Natalia M. Nazarova ◽  
Yulia F. Kuhlevskaya
Keyword(s):  
Steppe Zone ◽  
Climatic Conditions ◽  
Limiting Factors ◽  
Seasonal Development ◽  
Average Score ◽  
Introduced Plants ◽  
Dry Steppe ◽  
Height Increase ◽  
Observation Period ◽  
Viability Score

Abstract. The work was carried out to modify the method of assessing the viability of plants, taking into account the limiting factors of the climatic conditions of the Orenburg Preduralie. Are studied several species of plants, during the introduction at the steppe zone (on example of Оrenburg). Introduction study of all taxons was carried out for 8 years (20122020). The results of visual and laboratory observations of the seasonal development of species. During the entire observation period such indicators, as lignification of shoots, heat resistance, drought resistance, winter hardiness, shoot-forming capacity, height increase, generative development, and possible ways of reproduction in culture were evaluated annually. For each indicator numerical values in points corresponding to a certain state of the plant were selected. Based on the integrated assessment, the total viability score was calculated separately for each year of observations and the average score for the observation period. The sum of the average scores is an integral numerical expression of the viability of the introduced plants. Was established that the studied species belong to the I and II group relatively the criterion of life skills. The most species and sorts are among the most promising plants for introduction.

scholarly journals Raising Hereford breed in the conditions of the Republic of Tuva

2020 ◽  
Vol 50 (4) ◽  
pp. 66-71
Author(s):  
B. M. Ludu ◽  
B. K. Kan-ool
Keyword(s):  
Beef Cattle ◽  
Animal Husbandry ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
High Mountain ◽  
Taiga Zone ◽  
Research Information ◽  
Peasant Farm ◽  
The Republic

The paper presents the results of the research into the condition, number and concentration of beef cattle of Hereford breed, adapted to the natural and climatic conditions of the East Siberian region. The methodological basis of the study was formed by the methods of systematization, logical and comparative statistical analysis. The research information was based on the official materials of the Ministry of Agriculture and Food of the Republic of Tuva on animal husbandry. Out of the total number of livestock in the region (180 748 heads), Herefords amount to 2869 heads. A comparative analysis of livestock in farms of different forms of ownership and different natural and climatic zones was carried out. The largest population of Herefords (48.94%) is concentrated in the central agricultural and livestock zone with forest-steppe and steppe subzones (by the number of animals Piy-Khem kozhuun ranks first, 19.1%). In the southern zone of dry steppes, there are 27.43% of Herefords (by the number of livestock in the Republic, Tes-Khem kozhuun ranks second, 14.7%). In the western mountain-steppe zone there are 23.63% of Herefords, the largest number is in Barun-Khemchik (7.4%) and in Bai-Taiginsky (7%) kozhuun. Specialized beef cattle have not been brought to the high-mountain Mongun-Taiginsky kozhuun of the western zone or to the eastern high-mountain taiga zone. According to the results of the analysis, taking into account the category of farms, 56.4% of Herefords are kept in peasant farm enterprises, 19.7% – in agricultural production cooperatives, 29.7% – in other agricultural enterprises. All farms practise year-round grazing. Differences in the number of Hereford cattle by districts depend on the capacities of farms and climatic breeding zones. The monitoring which was carried out will allow to determine the prospects for raising purebred cattle of a specialized type, taking into account the terrain and zone of the breeding work in the conditions of year-round grazing in the Republic of Tuva.

INFLUENCE OF INSECTICIDES ON PRODUCTIVITY IN RAPE CROPS IN AKMOLA REGION

2021 ◽  
Author(s):  
М.Н.Сертек,Ш.Ш. Бекенова,А.П.Науанова, З.Ш Сулейменова
Keyword(s):  
High Efficiency ◽  
Plant Protection ◽  
Growing Season ◽  
Plant Protection Products ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Ordinary Chernozem ◽  
Forest Steppe ◽  
Biological Effectiveness ◽  
Harmful Organisms

According to the results of research on the phytosanitary status of rapeseed on ordinary Chernozem of the forest-steppe zone of the Akmola region, the species composition of pests was determined. Danadim power, Zolone 35% KE, Decis Expert were used against pests of this rapeseed. Indicators of biological effectiveness in the use of insecticides against pests ranged from 78-95%.The article discusses the biological and economic effectiveness of insecticides used against the main pests of rapeseed. Treatment of cruciferous rape beetle, rapeseed sawfly and cruciferous bug with Decis Expert insecticide (0.075 l/ha) showed high efficiency during the growing season. The use of plant protection products against a complex of harmful organisms showed that, depending on the prevailing climatic conditions, the yield increased to 1.3 c/ha, and the maximum - to 1.9 c/ha. Thus, according to the biological effectiveness of insecticides used against pests, the productDecis Expert showed high results in all pests. On the Cruciferous rape beetle it was 85.7%, in the turnip sawfly – 93.5%, in the cruciferous bug – 81.9%.

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