scholarly journals The efficiency of different methods of growing sweet potato (Ipomoea Batatas) planting material in the Forest-Steppe of Ukraine The purpose of the study was to establish the effectiveness of different methods of obtaining sweet potato planting material (through potted seedlings or unrooted cuttings) in the Left-Bank Forest-Steppe of Ukraine. Research methods: field, laboratory, statistical.The use of pottedseedlings method as a method of obtaining sweet potato planting material provides the formation of more developed plants of the culture (with an increased number of shoots per plant and their total length).The use of slips as a method of obtaining sweet potato planting material provides more intensive growth rates, the formation of tuber yields at 14.8 t / ha with a high content of dry matter (13.8 %), starch (10.7 %) and vitamin C 5.33 mg / 100 g).Using potted sweet potato seedlings occur with deformed tubers (3.5 %), but decreases the proportion of shrubs that do not form the tubers (8.3 % compared to 10.0 % for the use of the slips).

2021 ◽  
Vol 12 (1) ◽  
pp. 112-119
Author(s):  
O.V. Kuts ◽  
◽  
V.I. Mykhailyn ◽  
I. I. Semenenko ◽  
S.V. Shevchenko ◽  
...  
Keyword(s):  
Vitamin C ◽  
Research Methods ◽  
Sweet Potato ◽  
Growth Rates ◽  
Dry Matter ◽  
Forest Steppe ◽  
Left Bank ◽  
Total Length ◽  
Planting Material ◽  
Intensive Growth

The purpose of the study was to establish the effectiveness of different methods of obtaining sweet potato planting material (through potted seedlings or unrooted cuttings) in the Left-Bank Forest-Steppe of Ukraine. Research methods: field, laboratory, statistical.The use of pottedseedlings method as a method of obtaining sweet potato planting material provides the formation of more developed plants of the culture (with an increased number of shoots per plant and their total length).The use of slips as a method of obtaining sweet potato planting material provides more intensive growth rates, the formation of tuber yields at 14.8 t / ha with a high content of dry matter (13.8 %), starch (10.7 %) and vitamin C 5.33 mg / 100 g).Using potted sweet potato seedlings occur with deformed tubers (3.5 %), but decreases the proportion of shrubs that do not form the tubers (8.3 % compared to 10.0 % for the use of the slips).

scholarly journals Study of the efficiency of sweet potato growing in the Forest-Steppe of Ukraine by different methods of soil mulching

2021 ◽  
pp. 17-24
Author(s):  
Oleksandr Kuts ◽  
Svetlana Shevchenko ◽  
Ivan Semenenko ◽  
Evgen Dukhin ◽  
Artem Yakovchenko ◽  
...  
Keyword(s):  
Vitamin C ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Polyethylene Film ◽  
Forest Steppe ◽  
Potato Tubers ◽  
Labor Costs ◽  
Sweet Potatoes ◽  
Active Growth ◽  
Total Length

Sweet potato (Ipomoea batatas L.) is a new crop for soil and climatic conditions of Ukraine, the active implementation of which is hindered by the lack of recommendations on technological aspects of cultivation. One of the important technological measures for growing sweet potatoes is the use of soil mulching, which improves the water regime and regulates the thermal regime of the soil; prevention of weed growth and growth of sweet potato shoots to the soil. Thus, the aim of the research is to determine the efficiency of growing sweet potatoes in the Forest-Steppe of Ukraine by different methods of soil mulching. Field research was carried out on typical low-humus light loamy chernozem on loess loam. It was noted, that when growing sweet potatoes on ridges, the introduction of mulching the soil with black polyethylene film provides more active growth of the vegetative mass throughout the growing season (5.33 shoots/plant with a total length of 252.1 cm), while growing without ridges has a positive effect on plants growth due to the general absence of mulch (2.53 shoots/plant with a total length of 107.8 cm). The use of ridges and mulching the soil with black polyethylene film causes the yield of sweet potato tubers at 34.8 t/ha, while the mulching of the soil with straw, the yield was 18.3–21.9 t/ha, without mulching – 13.0–17, 1 t/ha. Mulching with black polyethylene film ensures the accumulation of vitamin C and starch in sweet potato tubers. When growing the culture on ridges by this method of mulching, the maximum level of vitamin C according to the experiment (4.78 mg/100 g) and starch (11.73 %) was noted. The introduction of mulching and ridge formation involves additional material and labor costs, but helps to reduce weed control and tuber digging costs. When growing sweet potatoes on ridges with mulching with black polyethylene film, the minimum additional labor costs for the formation of a unit of yield (1.95 man-minutes/kg of tubers) were noted, while without mulching and without ridges this figure was 6.76 man-minute/kg

scholarly journals Quality Attributes of Malaysia Purple-Fleshed Sweet Potato at Different Peel Condition

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 872
Author(s):  
Nurfarhana Shaari ◽  
Rosnah Shamsudin ◽  
Mohd Zuhair Mohd Nor ◽  
Norhashila Hashim
Keyword(s):  
Vitamin C ◽  
Sweet Potato ◽  
Dry Matter ◽  
Nutritional Value ◽  
Amylose Content ◽  
Starch Content ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

In this study, physical and chemical properties (dry matter, ash, moisture, protein, fat, fiber, carbohydrate, starch, amylose, and vitamin C) of sweet potato tuber and flour of Anggun 1 cultivar were evaluated at different conditions. During peeling, the tuber and flour were processed subjected to three different conditions, which were unpeeled tubers (C1), peeled tubers (C2), and skin of tuber only (C3). From the results, the highest (p < 0.05) dry matter was observed in C1 while higher contents of ash, moisture, and protein were found in C3. Regarding the fat and vitamin C content, no significant differences (p > 0.05) were found between each condition. The highest fiber, carbohydrate, and amylose content (p < 0.05) were found in C1. The C1 and C2 reflected significantly higher (p < 0.05) starch content. Overall, these results provide important information about the peeling effect on the physical and chemical properties of Anggun 1. The information could be used as adding value to healthy food in the Malaysian diet due to the nutritional value of sweet potato.

scholarly journals Ground-based “Pot-in-Pot” system and its effectiveness in growing Thuja occidentalis “Smaragd” planting material in a nursery

2021 ◽  
Vol 875 (1) ◽  
pp. 012092
Author(s):  
A N Tseplyaev ◽  
A A Tseplyaeva
Keyword(s):  
New Technologies ◽  
Root Zone ◽  
Effect Of Temperature ◽  
Forest Steppe ◽  
High Survival ◽  
Large Area ◽  
Thuja Occidentalis ◽  
Planting Material ◽  
Favorable Temperature ◽  
Intensive Growth

Abstract For the sparsely wooded regions of Russia, and in particular, the Central forest-steppe, new technologies for growing seedlings and seedlings of tree species are extremely important. It provids rapid growth and high survival rate, which is compared to classic technologies. The purpose of our experiment was to establish the effect of temperature screens from pots of various sizes on the temperature in the root zone of the substrate, and, as a consequence, on the growth and productivity of Thuja occidentalis “Smaragd” in plastic pots for three seasons. The most favorable temperature conditions for plants are formed in large pots, which is facilitated by smooth temperature drops in the substrate and a large area of contact between the substrate and the root system. Agrotechnical methods of growing plants have shown the main advantages of “Pot-in-Pot” technology. This is accelerated plant growth due to more efficient use of water and fertilizers on a specially prepared substrate under conditions of minimal temperature fluctuations. Plants, especially large ones, will have a favorable presentation due to better leafing, a well-developed crown, and a large crown diameter. High safety during wintering also increases the efficiency of the technology providing a higher yield and subsequent more intensive growth.

scholarly journals Influence of macro- and micro-fertilizers on biometry, performance and qualitaty of sunflower hybrids

2021 ◽  
pp. 161-169
Author(s):  
V. M. Totskyi ◽  
А. І. Len
Keyword(s):  
Growth And Development ◽  
Oil Content ◽  
Agricultural Research ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Research Station ◽  
Left Bank ◽  
Sunflower Seeds ◽  
Foliar Fertilization ◽  
Intensive Growth

Sunflower is a crop requiring intensive mineral nutrition, therefore, its cultivation demands reserves of nutrients in the soil, which can be replenished by applying mineral fertilizers. Purpose. Our purpose was to study the effects of fertilizers on the growth, development and yield of sunflower hybrids of different ripeness groups (bred at the Institute of Oil Crops) in the Left-Bank Forest-Steppe of Ukraine. Material and methods. The study was conducted at Poltava State Agricultural Research Station named after N.I. Vavilov in 2019–2020 The study object was processes of the growth and development of sunflower plants and formation of sunflower seeds depending on farming techniques. The study subject was sunflower hybrids Ahronomichnyi, Ahent and Serpanok. The following fertilizers were applied: 1) no fertilizers (control); 2) N32Р32К32; 3) N32Р32К32 + foliar fertilization of plants with urea (10 kg/ha) in the phase of 5–6 pairs of leaves; 4) N32Р32К32 + foliar fertilization of plants with microfertilizer Novalon Foliar (1 kg/ha) in the phase of 2–3 pairs of leaves; 5) N32P32K32 + foliar fertilization of plants with microfertilizer Novalon Foliar (1 kg/ha) in the phase of 5–6 pairs of leaves. Results and discussion. The results show that mineral macro- and microfertilizers contributed to more intensive growth and development of plants. Thus, the tallest plants, the largest leaves and calathidiums, and the highest 1000-seed weight were recorded hybrids Ahronomichnyi, Ahent and Serpanok with basic mineral fertilizers at a dose of N32Р32К32 + foliar fertilization with carbamide (10 kg/ha) or with microfertilizer Novalon Foliar (1 kg/ha). The maximum yields from hybrids Ahronomichnyi, Ahent and Serpanok were achieved with basic mineral fertilizers N32Р32К32 + foliar fertilization with microfertilizer Novalon Foliar (1 kg/ha) – 3.35 t/ha, 3.41 t/ha and 3.15 t/ha respectively. The gain to the control (no fertilizers) was 0.33 t/ha, 0.32 t/ha and 0.22 t/ha, respectively. Fertilization also affected the oil content in seeds. Mineral fertilizers N32Р32К32 decreased the oil content in the hybrid seeds by 1.1–1.7% compared to the ‘no fertilizers’ experiment. However, fertilization of plants during the growing period with urea or microfertilizer Novalon Foliar in combination with basic mineral fertilizers N32Р32К32 significantly increased the oil content in seeds. With the best yields, the highest output of oil from the hybrids was 1,406 kg/ha, 1,446 kg/ha and 1,356 kg/ha, respectively. Conclusions. Our results mainly confirm the results of other studies. Mineral fertilizers and microfertilizers promote more intensive growth and development of plants and increase the yields of sunflower seeds. However, there are some discrepancies in the oil content in seeds. Some researchers reported that mineral fertilization increased the oil content in seeds compared to the control (no fertilizers). We found that application of mineral fertilizers at a dose of N32P32K32 caused a decrease in the oil content in seeds, and only supplementary foliar fertilization with urea or microfertilizers increased this indicator

Downfall of meadow plants communities on the Left Bank Forest-Steppe Boundary in Ukraine

2013 ◽  
Vol 25 (1-2) ◽  
pp. 26-36
Author(s):  
L. D. Orlova
Keyword(s):  
Energy Storage ◽  
Plant Communities ◽  
Dry Matter ◽  
Central Area ◽  
Weather Conditions ◽  
Matter Content ◽  
Forest Steppe ◽  
Dry Matter Content ◽  
Left Bank ◽  
The Difference

The research was carried out on the different types of grassland plant communities on the left-bank forest boundary in Ukraine. It was established that the supplies of downfall on the  floodplaine meadows were within 37,3–1973,7 g/m2, upland medows – 21,8–627,3 g/m2, lowland medows – 70,0–1363,0 g/m2. The results of the research made it possible to identify three groups of indicators on the amount of downfalls. The first group consists of the areas with such amount of dawnfall as – 80.0 g/m2, the second one – 80,0–160,0 g/m2, and the third one – more than 160.0 g/m2. The change rate which depends on the part of the floodplain medows was considered. In the riverine area it was defined in the range of 31,8–663,6 g/m2, in the central area – 41,8–1973,7 g/m2, in the pre-terrace area – 37,3–1654,6 g/m2. The difference among minimal parameters is small but among maximum is significant. It is generally accepted that the results of the research are mainly supported by specific differences of floristic composition. The larger number of indicators (within the second group) are in the central parts of the investigated floodplains and rivers. In the central areas in general, there was a higher level of dry matter content. Combined with the increasing amount of downfall, to some extent, it is considered to be an indicator of higher crop level in this area. It was figured out that in some areas the upland meadows have got different number of the investigated indicators. The most important factors for this issue are the lower parts of the area but the minimum are the tops of the slopes. The difference can be quite significant. The comparison between the formation of downfall in the upland grasslands and the steppe area showed a certain regularity. In steppe areas the accumulation of the indicator was nearly one third less than the average one in the investigated meadows. The number of dry matter varied in the range of 31,8–95,7 %. The lower indicators as well as the upper ones differed in general not more than 10,0 %. In general the amount of dry matter content was the highest on the top of the slopes ant the lowest amount was on the bottom. In the overwhelming majority of surveyed lowland there was an increasing level of accumulation in the second and third groups.The comparison of the results about the accumulation of the downfall in the lowland meadows in the studied forest-steppe and steppe regions of Ukraine, which borders on the South, showed that its accumulation in the steppe regions was much less comparatively to the surveyed regions. Dry matter content of the downfall of this grassland areas was in the range of  31,9–94,4 %. We found that the energy storage of downfall meadow plant communities of the region is in the range of 0,4 × 106–37,1 × 106 Dzh/m2. Each type of medows has its own specific characteristics of the index and indicators. Thus, energy storage on the floodplaine was within 0,6 × 106–37,1 × 106 Dzh/m2, upland 0,4 × 106–12,1 × 106 Dzh/m2, lowland meadows – 1,3 × 106–25,7 × 106 Dzh/m2. Indicators of lowland meadows occupy an intermediate position between floodplain and upland areas. The comparison of borderline indicators allows us to see that they vary greatly both upper and lower. Minimal indicators are differe for 0,2 × 106–0,7 × 106 Dzh/m2 and maximum 7,3 × 106–16,1 × 106 Dzh /m2. The reduction of economic activity, in particular, the implementation of conservation as for all investigated meadow plant communities of the region leads to increasing amount of downfall in average. Weather conditions influences greatly the accumulation of the downfall. The analysis of climat map which was presented, shows us more favourable weather conditions during particular years. That is why the maximum storage of downfall was  observed during this period.

scholarly journals ВПЛИВ СОРТУ (ГІБРИДУ) НА УРОЖАЙНІСТЬ ТА БІОХІМІЧНІ ПОКАЗНИКИ ПЛОДІВ КАБАЧКА КУЩОВОГО В УМОВАХ ПІВДЕННОЇ ЧАСТИНИ ЗАХІДНОГО ЛІСОСТЕПУ УКРАЇНИ

2012 ◽  
pp. 171-173
Author(s):  
Л. В. Гойсюк
Keyword(s):  
Vitamin C ◽  
Biochemical Composition ◽  
Dry Matter ◽  
Forest Steppe ◽  
Vegetable Marrow

Розглянуто питання біохімічного складу плодів каба-чка кущового сорту Чаклун та гібридів Мостра F1 іСангрум F1, сівбу яких проводили в першу декадутравня за схемою розміщення рослин 70х70 см.Визначено і проаналізовано в плодах кабачка кущо-вого вміст сухої речовини, цукру, вітаміну С танітратів. Крім того подано аналіз урожайностізазначених сорту та гібридів кабачка кущового вумовах південної частини західного ЛісостепуУкраїни. За результатами досліджень було вста-новлено, що гібрид кабачка кущового Сангрум F1виявився найбільш урожайним (87,65 т/га). The problem of biochemical composition of vegetable marrowvariety of Chaklun and hybrids of Mostra F1 and Sungroom F1 isconsidered, sowing of which was conducted in the first ten-dayperiod of May after according to the chart of placing plants 70x70sm. The content of dry matter, sugar, vitamin C and nitrates isanalysed in the fruit of vegetable marrow. The analysis of theproductivity of variety and hybrids of vegetable marrow in theconditions of south part of western Forest-Steppe of Ukraine is alsogiven. It has been established that the hybrid of vegetable marrowSungroom F1 was the most productive (87,65 t/ha) as a result ofresearches.

Humus state of chernozem at different ways of tillage in the agrosystems of the left-bank forest steppe of Ukraine

2015 ◽  
Vol 2 (3) ◽  
pp. 61-77
Author(s):  
O. Demydenko ◽  
V. Velychko
Keyword(s):  
Soil Cover ◽  
Forest Steppe ◽  
Left Bank ◽  
Energy Reserves ◽  
Soil Resources ◽  
Global Soil ◽  
Humus Accumulation ◽  
By Products ◽  
The Way

The contemporary condition of soil cover in Ukraine is characterized. The attention is focused onto widespread degradation processes in soils. The causes that determine the development of these negative processes are considered. The contemporary informational support for the condition of soil cover in Ukraine is estimated. In general, the current available information is of narrow-departmental nature, obtained by different methods and non-correlated monitoring programs. As a rule, it is stored in under-structured databases, incompatible with other information systems; mainly recorded on paper media unusable with modern technologies, whereby such information resources are diffi cult to be compiled together. These disadvantages are strong constraints against consistent usage of materials for evaluation, forecast and management of changes in the soil cover. The Soil Observation program should thereby be combined with Agrochemical Passportization and ecology-ameliora- tive monitoring; in other words, the application of innovative soil-agrochemical methodology is considered. Each individual type of surveys shall complement the others, and taken altogether, they shall constitute a con- sistent Information System, capable of solving the problems of assessing the condition, forecasting, manage- ment, usage and protection of soil resources. The monitoring procedures should be conducted on the basis of a new soil concept in line with unifi ed programs and methods, so as to meet European approaches to the maxi- mum extent. Such a technical composition enables getting information on present-day processes in soils, and is the only combination that actually helps us to “ecologize” our knowledge of soils, which is the leading trend in the scope of global soil-science. Thus obtained results will serve as a State-owned tool which would subse- quently facilitate the use and protection of soil resources all over the country, to be involved in a united global soil-information scope. The attention is focused onto social signifi cance of the information on soils and their fertility in terms of land resources optimization, as well as the formation of sustainable land use in Ukraine. Aim. To demonstrate the long-term effect of different ways of tillage of typical low-humus chernozem on the change in humus content and composition and the direction of transformation processes of organic fertili- zers. To study the changes in the structure of energy reserves in group and fractional composition of humus in typical low-humus light-loamy chernozem of the Forest-Steppe of Ukraine. Methods. Field, laboratory, microbiological, computational, mathematical and statistical. Results. It was determined that in conditions of long-term subsurface tillage the most effi cient humus accumulation occurs in the 0–20 cm layer of chernozem with simultaneous increase in its content in the lower part of the processed layer without any accumulation differentiation. Surface tillage leads to expressed differentiation in humus accumulation in the 0–20 cm layer of soil (0.005 % per year). When 6 t/ha of humus are replaced by 7 t/ha of by-products the intensity of humus accumulation is decreasing regardless of the way of tillage, but humus accumulation was found to be the most effi cient for subsurface tillage. The application of subsurface tillage leads to the increase in the ratio of C HA : C FA , which is conditioned by the increase in the humifi cation of plant remains of by-products in the 0−20 cm layer of soil by 110–112 % – for subsurface tillage, and by 105 % – for surface tillage. Conclusions. It was established that systematic subsurface tillage of typical chernozem of the Left-Bank Forest-Steppe of Ukraine leads to the structuring both of the total reserves of energy С org , and its quality content, aimed at the increase in the intensity of the processes of humifi cation and accumulation of organic carbon, and the decrease in miner- alization. The ratio of energy reserves С org of humic acids to fulvic acids in the 0−30 cm layer of chernozem is 1.85−1.87 regardless of the way of tillage, which testifi es to the repeatability of humus accumulation, but the total reserves of energy С org was higher for subsurface tillage (+ 31 Teracalorie/ha) compared to deep plough- ing. As for the surface tillage, the energy enrichment was at the level of deep ploughing.

New cultivar of red clover Prima

2019 ◽  
Vol 49 (3) ◽  
pp. 41-46
Author(s):  
R. I. Polyudina
Keyword(s):  
Dry Matter ◽  
Red Clover ◽  
West Siberia ◽  
The State ◽  
Hybrid Population ◽  
Forest Steppe ◽  
Average Yield ◽  
Variety Trial ◽  
Green Mass ◽  
Early Ripening

The results of breeding work on creation of the new cultivar of red clover are presented. The hybrid population (15-10-D (2n)) was created by the method of crossbreeding and selection in the conditions of artifi cial climate. Selection of winterhardy high-yielding forms of this hybrid population was conducted in the forest-steppe zone of West Siberia. The population 15-10-D (2n) was tested in three cycles of competitive variety trial (crops of 2006, 2008 and 2010) and was submitted to the State variety testing under the name Prima. According to the results of the competitive variety trial during 2007–2013, the new early-ripening diploid cultivar Prima showed high winter hardiness of 97.0-99.0%. The duration of the growing season is 115 days (on the level of standard early-ripening tetraploid cultivar Meteor). The yield of green mass in two cuts is 19.6-58.7 t/ha, the yield of dry matter is 4.2-13.5 t/ha, the yield of seeds is 276-392 kg/ ha. The average yield of green mass in two cuts of the new cultivar is 38.8 t/ha, the average yield of dry matter is 8.7 t/ha, the average yield of seeds is 317 kg/ha, which exceeds standard cultivar Meteor by 52%. The seed content of Prima cultivar is 52%, Meteor – 38%. The crude protein content in dry matter is 16.1%, the fi ber content is 26.0%. Prima cultivar has been included in the State Register of Breeding Achievements of the Russian Federation to be grown in the West Siberian region since 2019. The copyright certifi cate and patent for the breeding achievement were received.

“FLAGMAN” - NEW VARIETY OF BROMUS INERMIS

1970 ◽  
pp. 17-19
Author(s):  
N. I. Kashevarov ◽  
R. I. Polyudina ◽  
I. N. Kazarinova ◽  
D. А. Potapov
Keyword(s):  
Dry Matter ◽  
Western Siberia ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Mass Selection ◽  
New Variety ◽  
Fodder Crops ◽  
Experimental Base ◽  
Siberian Research Institute ◽  
Academy Of Sciences

A new cultivar of smooth bromegrass (Bromopsis inermis Leyss) Flagman was developed by methods of mass selection and polycross. Breeding and wild forms of various ecological and geographical origins are used as an initial material. The authors of the cultivar: Kazarinova I.N., Polyudina R.I., Straub A.A., Gomasco S.K. Studies were conducted on the Central experimental base of the Siberian research Institute of fodder crops of the Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences, located in the forest-steppe zone of Western Siberia (Novosibirsk region, Novosibirsk district, Krasnoobsk). The cultivar is mid-ripening: the period from the beginning of spring aftergrowing to mowing ripeness is 63-75 days and to full maturing of seeds is 95-111 days. The yield of dry matter is 8.3 t/ha, which exceeds the standard by 8%, seed yield - 0.62 t/ha, higher than the standard by 28%. The dry matter yield of the cultivar Flagman for the fourth year of use exceeded the standard by 23% and reached to 11.4 t/ha. The 1000 seeds weight is 3.0-3.4 g. The plant height is 90-140 cm. Tilling capacity is up to 40 stems per tuft. Foliage varies from 32 to 50% depending on the age of the grass and environment conditions. The resistance of the cultivar to brown rust and helminthosporiosis is higher than of the standard. The copyright certificate No. 71916 and patent No. 9653 were received.

Agrotechnical dusting of arable soils of Left-bank Forest-steppe and Steppe of Ukraine

2018 ◽  
Vol 96 (8) ◽  
pp. 5-11 ◽  
Author(s):  
S. Bulygin ◽  
S. Vitvits'kyj ◽  
D. Timchenko ◽  
V. Didenko
Keyword(s):  
Forest Steppe ◽  
Left Bank ◽  
Arable Soils
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