Features of development and regeneration in the burnt forest steppe zone

2015 ◽  
Vol 5 (1) ◽  
pp. 85-97
Author(s):  
Казаков ◽  
Vladimir Kazakov ◽  
Проказин ◽  
Nikolay Prokazin ◽  
Лобанова ◽  
...  
Keyword(s):  
Root System ◽  
Practical Interest ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Forest Sector ◽  
Test Plot ◽  
Labor Costs ◽  
Forest Residues ◽  
Pine Seedlings ◽  
The Impact

Fire-fighting and carrying out reforestation on the burnt forests is a complex problem for the forest sector. Current guidelines of technology for the development of burnt forests do not fully meet modern requirements, so the solution of this problem is of scientific and practical interest for the forest industry professionals. Features of the application of the most common means of mechanization for harvesting, as well as labor costs are at their operation are marked as the result of analysis of method of harvesting stands in areas with both commodity and non-commodity timber. It is noted that the greatest interest for sparsely areas is way to eliminate burnt forests by chainsaw felling and skidding of stems to the loading warehouse using chokerless skid devices in the unit with wheel tractors. This technology eliminates the clearing of cutting areas from forest residues and performs branches cutting and stems butchering for assortments in one place. Conducted approbation of low-operation harvesting technology of stands on the roll with a chainsaw "Husqvarna" and skidding trees with chokerkess skid equipment for thinning the forest ОРУ-2 unit with МТЗ-80/82, confirmed its benefits and made it possible to establish the basic performance characteristics. Test plot of pine seedlings is laid, using open and closed root system and indicators of their survival and growth are identified. Planting of yearling pine seedlings with closed root system on non-treated belts led to their death. Assessing the impact of mycorrhiza in making it into the soil on plant growth and survival, has confirmed the feasibility of its use in creating pine plantations on sandy soils.

scholarly journals Formation of corn grain quality in different directions of use depending on the technology of growing in the Forest-steppe

1970 ◽  
pp. 74-84
Author(s):  
V. F. Kaminskyi ◽  
N. M. Asanishvili
Keyword(s):  
Grain Quality ◽  
Starch Content ◽  
Steppe Zone ◽  
Quality Parameters ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
The Impact ◽  
By Products ◽  
Corn Grain

Purpose. The aim of the research conducted during 2016-2019 was to determine the impact of technological methods on the indicators of corn grain quality to optimize the elements of growing technology depending on the directions of use in conditions of the Forest-Steppe natural zone of Ukraine. Methods – field, quantitative and weight, chemical, comparative and calculation, mathematical and statistical. Results. On the results of the research, dependences of formation of quality of grain on the content of protein, starch, fat in it and correlation dependencies between these indicators and yield of corn have been revealed. The best quality of grain of a forage and food direction is formed when applying high doses of mineral fertilizers, and for processing on bioethanol the optimal content of starch and protein is guaranteed at optimum and raised level of fertilizing. It was established that the content of protein, starch and fat had less effect on their yield from 1 hectare than the general yield level. The technologies of cultivation of different intensity as to their possible application for the production of grain of different directions of use with the given quality parameters, the yield of protein, starch, fat and bioethanol have been evaluated. Conclusions. The technology of corn growing with complex application of intensification elements in conditions of the Forest-Steppe zone, which includes introduction of N240P120K240 on the background of by-products of its predecessor, application of the soil and insurance herbicide, plant growth and micro-fertilizers is suitable for fodder and food purposes and ensured the yield of 12.1 t/ha of grain with protein content and yield – 10.56% and 1.28 t/ha, fat – 4.29% and 0.52 t/ha, starch – 71.27% and 8.62 t/ha. For processing on bioethanol effective is the technology of corn growing with the introduction of N180P120K180, by-products of the predecessor, soil herbicide and bio-stimulants, which provided a yield of 9.76 t/ha of grain with a starch content of 72.26% for the yield of 7.05 t/ha and yield of bioethanol at the level of 3982 l/ha.

scholarly journals Promising Cultivars of Prunus divaricata for the Central Forest-Steppe Zone of Ukraine

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 832G-833
Author(s):  
Larissa V. Sydorchuk
Keyword(s):  
Root System ◽  
Soil Surface ◽  
Steppe Zone ◽  
Winter Hardiness ◽  
Forest Steppe ◽  
Commercial Culture ◽  
High Quality ◽  
Leaf Stage ◽  
Dormancy Period

Prunus divaricata has attracted attention as a commercial culture only recently, but it is in the process of becoming a valuable fruit culture in Ukraine, where it has been planted in an area of >3000 ha. P. divaricata bears fruit earlier during the 2nd or 3rd year after planting. Its fruits ripen earlier than that of plums and are consistently abundant, fairly large, of high-quality, rich in vitamins, and easy to transport. These fruits can be eaten fresh or processed The trees have a short dormancy period, which may account for their relatively poor winter-hardiness. The root system of P. divaricata is shallow and mainly located at a depth of 50 cm from the soil surface. Its vertical roots, however, reach a depth of 2 m or more. The young roots may freeze at ≈12C. However, winter hardiness of the different cultivars varies and is determined by their origin. P. divaricata blooms early, roughly at the time when the flowering of early apricots ends. Its flowers are less susceptible to late frosts than those of apricots. For pollination, three or four different cultivars are needed. Yields ranging from >70 to 80 kg have been reached at the seventh leaf stage with the following cultivars in central Ukraine: `Olen'ka', `Obil'na”, `Raketa', `Zhemchuzhyna', and `Vasylius'ka' (control standard).

Naturally spreading and natural apple dwarfs in the forest-steppe zone of the Southern Urals

2020 ◽  
Vol 62 ◽  
pp. 70-76
Author(s):  
O. E. Merezhko ◽  
M. A. Mazunin ◽  
E. Z. Savin ◽  
A. I. Gridnev
Keyword(s):  
Unit Area ◽  
Steppe Zone ◽  
Southern Urals ◽  
South Urals ◽  
Forest Steppe ◽  
Labor Costs ◽  
The Urals ◽  
The Southern Urals ◽  
Apple Trees ◽  
Early Maturity

The article presents tests of natural creeping apple trees and natural dwarfs, carried out in the in the conditions of the Orenburg region. There were from 50 to 100 trees in the experiment in each variant. Vigorous standard plantations were used as control. The aim of the research was to test natural creeping apple trees, natural dwarfs against the background of standard varieties bred in the South Urals (Chelyabinsk), as well as to determine their prospects for intensive horticulture in the extreme conditions of the region. The preservation of plantings for all variants of the experiment for 20 years of research is high and amounted to 92-99 %, their condition was estimated at 4.5-5.0 points. The highest yield was noted for natural dwarfs (457.2 c/ha), the smallest yield was obtained on vigorous standard plantings (control) – 238.7 c/ha. Naturally creeping apple trees in terms of productivity were higher than control by an average of 25 %. Of the naturally creeping varieties, the most productive were the varieties Podsnezhnik (348.3 c/ha), Chudnoe (335.2 c/ha), the least productive were the varieties Plastun and Kovrovoe (255.1 and 262.5 c/ha, respectively). On the natural dwarfs, the most productive variety was the variety Brat Chudnogo (461.2 c/ha). In the control, the most productive varieties were the varieties Symbol (295.9 c/ha) and Nadezhda (270.5 c/ha), less productive were the varieties Pamyat Zhavoronkova and Fevralskoe (208.0 and 224.1 c/ha, respectively). Low-growing plantations, in particular layer and natural varieties of the Urals, are distinguished by their early maturity and, in general, higher productivity per unit area. The highest labor costs are accounted for by natural dwarfs (485.4 person-day/ha) and the lowest in vigorous plantings (317.4 person-day/ha). This has a positive eff ect on the profit and rentability of production.

Regulation of nitrogen-carbon interactions in agroecosystems in the forest-steppe zone of Ukraine

2015 ◽  
Vol 2 (1) ◽  
pp. 35-49 ◽  
Author(s):  
V. Velichko ◽  
О. Demidenko
Keyword(s):  
Crop Production ◽  
Steppe Zone ◽  
Complex Model ◽  
Organic Fertilizers ◽  
Natural Soil ◽  
Forest Steppe ◽  
Atmospheric Layer ◽  
Secondary Products ◽  
Different Types ◽  
The Impact

Aim. To determine the specifi ed parameters of the complex model of nitrogen-carbon circulation while using different types of crop rotation, kinds of organic fertilizers and ways of soil cultivation in agroecosystems of the forest-steppe zone of Ukraine. Methods. Field, laboratory, computational, mathematical and statistical. Results. Specifi c types of organic fertilizers affect the emission of СО 2 into the lowest atmospheric layer: in case of humus the typical emission interval is 25–85 t/ha, while in case of secondary products it is 70–160 t/ ha. The impact of the way of chernozem preparation on nitrogen-carbon circulation is manifested in the fact that in case of subsurface tillage the carbon balance in soil was positively increasing compared to ploughing. The interval of СО 2 emission into the lowest atmospheric layer due to the mineralization of humus and organic fertilizers with ploughing changes in a wider range compared against subsurface tillage. Conclusions. The nitrogen-carbon interactions are impaired due to the introduction of humus and removal of secondary products beyond the boundaries of the agroecosystem in the course of ploughing. The application of ground secon- dary products of crop production as organic fertilizers, wrapped up into the surface layer of chernozem during the subsurface tillage of soil, simulates the natural course of nitrogen-carbon circulation in agroecosystems of different types. Natural soil formation process is simulated due to the activation of photosynthetic activity of cultivated crops with СО 2 saturation in the lowest atmospheric layer, which provides for extensive restoration of chernozem fertility in the forest-steppe zone of Ukraine.

The size of under-ear interstice and productivity of spring soft wheat varieties of different ecological groups in the forest-steppe of Orenburg region

10.12737/6546 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 135-138
Author(s):  
Мухитов ◽  
Lenar Mukhitov ◽  
Самуилов ◽  
Feofan Samuilov
Keyword(s):  
Steppe Zone ◽  
Southern Urals ◽  
Wheat Breeding ◽  
Soft Wheat ◽  
Forest Steppe ◽  
Ecological Groups ◽  
The Southern Urals ◽  
Wheat Varieties ◽  
Spring Soft Wheat ◽  
The Impact

The impact of contrasting conditions of water availability on the size of the upper internodes in wheat varieties was studied under the conditions of the Orenburg steppe zone. It was noted, that less drought-resistant varieties formed a short upper internodes. We conducted a mathematical analysis of the relationship of productivity and length of ear-carrying internodes of spring soft wheat varieties of different ecological groups. It was established, that we can observe a gradual increase of grain productivity with increasing the length of the upper internodes in the studied range. As a result, the following varities were selected for inclusion into the hybridization: Logachevka, Tulaykovskaya steppe, Tulaykovskaya 1, Tulaykovskaya Belozernaya, Prokhorovka and Uchitel. They have the optimal settings for the presented feature. Using the selected varieties as parental forms can enhance the efficiency of wheat breeding programs for resistance to drought in the forest-steppe zone of the Southern Urals.

scholarly journals INFLUENCE OF THE MINERAL NUTRITION LEVEL ON THE PRODUCTIVITY OF CEREAL AND LEGUMINOUS AGROCENOSES IN THE FOREST STEPPE OF BAIKAL

2019 ◽  
Vol 14 (3) ◽  
pp. 5-9
Author(s):  
Виктор Агафонов ◽  
Viktor Agafonov ◽  
Евгений Бояркин ◽  
Evgeniy Boyarkin
Keyword(s):  
Mineral Nutrition ◽  
Growth And Development ◽  
Mineral Fertilizer ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Green Mass ◽  
Green Mass Yield ◽  
The Impact

The article presents findings of the influence of different levels of mineral nutrition on plant growth and development, the impact of fertilizers on the botanical composition, on the productivity and forage benefits of cereal-bean agrocenoses in the forest-steppe zone of the Baikal region. The objects of research were mixed crops of oats with peas and millet with vetch, peas, and Austrian winter pea. Legumes are the main source of protein increase in feed. In the field, the most widespread, among legumes, were vetch, sowing peas, field peas (Austrian winter pea). As a result of phenological observations, it was found that the growth and development of plants depended on the biological characteristics of crops, weather conditions and directly on the mineral nutrition level. The millet reacted most effectively to the application of mineral fertilizers, starting from the exit phase into the tube. The introduction of mineral fertilizers in pre-sowing tillage contributed to an increase in the proportion of legume components in the total green mass yield and a decrease in cereals. The highest competition in agrocenoses of millet with legume components was vetch, its share in the mixture increased, compared to the unfertilized background, by 6 and 14.5%, depending on the background of fertilizers. It was found that, compared with the unfertilized background, mineral fertilizers increased the yield of green mass from 1.5 to 4.9 tons per hectare, the collection of dry matter from 0.4 to 2.0 tons per hectare and the collection of feed units from 0.3 to 1.3 tons per hectare. Digestible protein content in 1 unit increased with the introduction of nitrogen fertilizer (N45), depending on the type of components in the mixture, from 3.2 to 6.6 g, and with the introduction of complex mineral fertilizer (N45P30K30) from 2.5 to 9.6 g. All are millet-bean mixtures at all levels of mineral nutrition comply with zootechnical standards.

scholarly journals Contemporary gully erosion trend in the northern part of the forest-steppe zone of the Russian Plain: a case study from the Republic of Tatarstan, European Russia

2019 ◽  
Vol 381 ◽  
pp. 21-24 ◽  
Author(s):  
Aidar Sharifullin ◽  
Artur Gafurov ◽  
Regina Medvedeva ◽  
Valentin Golosov ◽  
Aleksandr Dvinskih ◽  
...  
Keyword(s):  
Steppe Zone ◽  
Gully Erosion ◽  
Control Measures ◽  
Soil Freezing ◽  
Russian Plain ◽  
Forest Steppe ◽  
Air Temperatures ◽  
High Resolution Satellite Images ◽  
The Republic ◽  
The Impact

Abstract. This article presents results for gully head cut retreat rates (GHRR) in the Pre-Kama region (Republic of Tatarstan, Russia) based on monitoring (1984–1994 and 2015–2018) and the interpretation of high-resolution satellite images (2004–2014). The results suggested that the mean linear GHRR have reduced by about five times, from 1.6 m per year (1983–1994) to 0.4 m per year (2015–2018). The main reason for the significant decrease in gully erosion was the increase in winter-spring air temperatures, which resulted in a reduction in the depth of soil freezing and surface runoff. The impact of land use, as well as erosion control measures, which were implemented in the study area during the late 1980s and early 1990s, was found to be less important.

scholarly journals The phenological observations as the basis for the formation of the database of phenological spectrums of woody plants

2020 ◽  
pp. 77-84
Author(s):  
O. Yu. Emelyanova ◽  
М. F. Tsoy ◽  
L. I. Masalova
Keyword(s):  
North American ◽  
Woody Plants ◽  
Practical Interest ◽  
Weather Conditions ◽  
Growing Season ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Seasonal Development ◽  
Forest Steppe ◽  
Central Russia

Relevance. A study of the seasonal (phenological) phenomena and natural connections between them on the background of the relevant environmental conditions is of great scientific and practical interest. Knowledge of the dynamics of the seasonal development of woody plants helps in the selection of species and their assessment from an aesthetic and sanitary points of view, as well as in the development and implementation of measures to increase the sustainability of urban green spaces. Materials and methods. The purpose of these studies is to create a database of the dynamics of seasonal development of North American woody plants based on the results of many years of phenological monitoring (2003-2017). The 20 species and forms of North American woody introducers e of the VNIISPK arboretum genetic collection were the objects. Results. It was revealed that the growing season of woody North American plants corresponds to the climatic conditions of the forest-steppe zone of central Russia. The species with the earliest beginning of the growing season (the third decade of March) were distinguished. There were Mahonia pinnata, M. aquifolia, Betula lenta and B. lutea. On the basis of phenological calendars, phenological spectrums have been constructed. These consist of three lines (the development of leaves, shoots, flowers and fruits) with the corresponding color symbols. It has been revealed that phenospectrums vary depending on the conditions of the year. As a result, the database of 20 species and forms of North American woody plants was formed in the form of phenological spectrums against the background of registration of weather conditions in the forest-steppe zone of Russia. The database includes three options for the possible dynamics of the seasonal development of introduced North American plants. The created database allows observing, comparing, evaluating and forecasting changes in the seasonal rhythm of the studied species of introduced North American plants.

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