scholarly journals THE KEY ASPECTS OF THE PRODUCTION PROCESS OF MYSCANTHUS GIGANTEUS UNDER THE CONDITIONS OF THE MIDDLE VOLGA REGION

2021 ◽  
pp. 43-50
Author(s):  
В.А. Гущина ◽  
А.А. Володькин ◽  
Н.И. Остробородова ◽  
А.С. Лыкова
Keyword(s):  
Maximum Yield ◽  
First Year ◽  
Hydrothermal Conditions ◽  
Middle Volga Region ◽  
Perennial Plant ◽  
Net Productivity ◽  
Miscanthus Giganteus ◽  
Urgent Task ◽  
Key Aspects ◽  
Ground Mass

В настоящее время актуальной задачей является поиск экологически безопасных и экономически доступных источников энергии для многоцелевого использования. Одним из таких ресурсов является многолетнее растение из семейства Мятликовые – мискантус гигантский (Miscanthus giganteus), который отличается значительным нарастанием надземной массы по С4-фотосинтезу, но не может реализовать свои потенциальные возможности как культура с высокими темпами фотосинтетической деятельности, поскольку в год посадки слабо конкурирует с сорняками. Поэтому изучали способы борьбы с сорным компонентом в агроценозе мискантуса на светло-серой почве коллекционного участка ФГБОУ ВО Пензенский ГАУ. В годы проведения исследований, характеризующихся различными гидротермическими условиями (ГТК 0,64-1,29), установлено, что гербициды системного действия Балерина и Магнум по фону Торнадо 500 способствуют увеличению площади листовой поверхности мискантуса в первый год жизни до 18,36…19,09 тыс. м2/га, фотосинтетического потенциала до 496,1…508,7 тыс. м2∙сут./га. Максимальные показатели чистой продуктивности фотосинтеза 0,62…0,85 г/м2∙сут. отмечены в конце июня. За счет двукратной химической прополки снижение засоренности ведет к получению максимальной урожайности надземной массы 8,92…9,09 т/га. Наибольший сбор сухой массы 2,13…2,97 т/га получен при использовании Торнадо 500 в сочетании с гербицидами Балерина и Магнум. Currently, an urgent task is to find environmentally friendly and economically accessible energy sources for multi-purpose use. One such resource is a perennial plant from the bluegrass family, Miscanthus giganteus, which has a significant increase in above-ground mass by C4-photosynthesis, but cannot realize its potential as a crop with high rates of photosynthetic activity, because in the year of planting it competes poorly with weeds. Therefore, we studied ways to control the weed component in the agrocenosis of miscanthus on the light gray soil of the collection area of Penza State Agrarian University. In the years of the research, characterized by different hydrothermal conditions (HTC 0.64-1.29), it was found that the herbicides of systemic action Balerina and Magnum in the background of Tornado 500 contribute to an increase in the leaf area of miscanthus in the first year up to 18.36...19.09 thousand m2/ha, in the photosynthetic potential to 496.1...508.7 thousand m2∙day/ha. The maximum values of net productivity of photosynthesis (0.62...0.85 g/m2∙day) were observed at the end of June. Due to the double chemical weeding the decrease of weeds leads to the maximum yield of above-ground mass - 8.92...9.09 t/ha. The highest dry matter yield of 2.13...2.97 t/ha was obtained using the Tornado 500 in combination with the herbicides Balerina and Magnum.

Growing a Nature Kindergarten That Can Flourish

2018 ◽  
Vol 34 (2) ◽  
pp. 115-126 ◽  
Author(s):  
Enid Elliot ◽  
Frances Krusekopf
Keyword(s):  
Public School ◽  
School System ◽  
Kindergarten Students ◽  
Public School System ◽  
First Year ◽  
Outdoor Programs ◽  
Unique Framework ◽  
Nature Preschool ◽  
Key Aspects ◽  
Ongoing Support

AbstractGrowing a nature kindergarten that can flourish takes a community, careful planning, and sustained support. In 2011, the Sooke School District in British Columbia, Canada undertook the project of creating a nature kindergarten when outdoor programs of this kind did not exist in the Canadian public school system. Inspired by the well-established forest school and nature preschool models in northern Europe, a program to take 22 kindergarten students outside into nature every morning, regardless of the weather, was developed. This article explores how a unique framework and set of guiding principles were co-created by a diverse advisory committee. It also describes how the hiring, education, and ongoing support of the program's two educators — a kindergarten teacher and an early childhood educator — became critical to its success. The article offers an overview on steps taken, including how the idea was born, working within the public school system, building a framework and principles, hiring and education, preparing the educators, learning from our first year, ongoing support, and remaining questions. The authors’ intention is not to articulate best practices, but to share key aspects of the program's development and implementation phases that allowed the nature kindergarten to thrive over the last 5 years.

scholarly journals Water-Yield Relationships in Deficit Irrigated Onion

2019 ◽  
Vol 7 (9) ◽  
pp. 1310
Author(s):  
Serhat Ayas
Keyword(s):  
Block Design ◽  
Maximum Yield ◽  
Quality Parameters ◽  
Water Yield ◽  
First Year ◽  
Growth Stages ◽  
Irrigation Amount ◽  
Yield And Quality ◽  
Second Year ◽  
Irrigation Treatments

This trial was realized in the greenhouses of Uludağ University Yenişehir Vocational School between 2009 and 2010 to investigate effects of water deficit on yield and quality parameters of onion during four crop growth stages. In this trial, fourteen irrigation treatments in four growth periods (establishment, vegetative, yield formation and ripening) of onion (Allium cepa L E.T Grano.502) were constituted and the yield and quality parameters found from these treatments were evaluated. The layout of the experiment was a completely randomized block design with three replications for each of the fourteen irrigation treatments tested. According to the content of the treatments, the irrigation amount water applied to the plants varied between 0 and 436 mm in the first year, and between 0 and 448 mm in the second year. Water consumption of onion in the first year ranged between 205 and 496 mm and in the second year ranged between 210 and 502 mm. Yield, bulb weight, diameter, height and dry matter ratio were determined statistically significant. In 2009 and 2010 years, the maximum yield were found as 52.2 t ha-1 and 52.4 t ha-1 in E100V100Y100R100 treatments, while the minimum yield were found as 0.8 t ha-1 and 0.5 t ha-1 in the E0V0Y0R0 treatments, respectively. Water- yield relationship factors (ky) in 2009 and 2010 years were found as 1.03 and 1.04, respectively. The maximum WUE and IWUE values were obtained from establishment and ripening periods. Establishment and ripening periods may be suggested as the maximum efficient irrigation periods for the onion applied with drip irrigation under unheated greenhouse conditions.

scholarly journals Methane Yield Potential of Miscanthus (Miscanthus × giganteus (Greef et Deuter)) Established under Maize (Zea mays L.)

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4680 ◽  
Author(s):  
Moritz von Cossel ◽  
Anja Mangold ◽  
Yasir Iqbal ◽  
Iris Lewandowski
Keyword(s):  
Dry Matter ◽  
Zea Mays L ◽  
Methane Yield ◽  
Yield Potential ◽  
First Year ◽  
Biotic And Abiotic Stress ◽  
Yield Gap ◽  
Fiber Analysis ◽  
Miscanthus Giganteus ◽  
The Mean

This study reports on the effects of two rhizome-based establishment procedures ‘miscanthus under maize’ (MUM) and ‘reference’ (REF) on the methane yield per hectare (MYH) of miscanthus in a field trial in southwest Germany. The dry matter yield (DMY) of aboveground biomass was determined each year in autumn over four years (2016–2019). A biogas batch experiment and a fiber analysis were conducted using plant samples from 2016–2018. Overall, MUM outperformed REF due to a high MYH of maize in 2016 (7211 m3N CH4 ha−1). The MYH of miscanthus in MUM was significantly lower compared to REF in 2016 and 2017 due to a lower DMY. Earlier maturation of miscanthus in MUM caused higher ash and lignin contents compared with REF. However, the mean substrate-specific methane yield of miscanthus was similar across the treatments (281.2 and 276.2 lN kg−1 volatile solid−1). Non-significant differences in MYH 2018 (1624 and 1957 m3N CH4 ha−1) and in DMY 2019 (15.6 and 21.7 Mg ha−1) between MUM and REF indicate, that MUM recovered from biotic and abiotic stress during 2016. Consequently, MUM could be a promising approach to close the methane yield gap of miscanthus cultivation in the first year of establishment.

scholarly journals Influence of increasing nickel content in soil on Miscanthus × giganteus Greef and Deu. Yielding and on the content of nickel in above-ground biomass / Wpływ wzrastającej zawartości niklu w glebie na plonowanie Miscanthus x giganteus Greef i Deu. i zawartość niklu w nadziemnej biomasie

2015 ◽  
Vol 41 (1) ◽  
pp. 72-79
Author(s):  
Maciej Bosiacki
Keyword(s):  
Nickel Content ◽  
Mineral Soil ◽  
Nickel Sulfate ◽  
First Year ◽  
Above Ground Biomass ◽  
Miscanthus X Giganteus ◽  
Miscanthus Giganteus ◽  
High Moor ◽  
High Nickel ◽  
High Moor Peat

Abstract The aim of the research conducted in a 2-year pot experiment in an unheated plastic tunnel was to determine suitability of Miscanthus × giganteus for phytoextraction of nickel from soil as well as to assess tolerance of this species on increasing concentrations of this metal in soil. Pots were filled with mineral soil (sand) and a mixture of soil with high-moor peat and three levels of nickel were introduced, i.e. 75 mg dm-3, 150 mg dm-3 and 600 mg dm-3 and the control combinations used substrates without the addition of nickel. Nickel was introduced only in the first year of the experiment in the form of nickel sulfate (NiSO4 · 6H2O). Miscanthus × giganteus accumulated a considerable amount of nickel in biomass. Miscanthus × giganteus growing in contaminated mineral soil turned out to be a species tolerant to high nickel concentrations

Peasant Production of Cash Crops and Social Stability

1969 ◽  
Vol 12 (03) ◽  
pp. 255-263
Author(s):  
Daniel F. McCall
Keyword(s):  
First Year ◽  
Social Stability ◽  
Economic Factors ◽  
Stability And Change ◽  
Cash Crops ◽  
Time Out ◽  
Urgent Task ◽  
Prime Concern ◽  
Made In ◽  
Do So

All of my work in the last fifteen years has been influenced by my association with Bill Brown. But it is perhaps especially appropriate that this piece be included in this tribute to him, for it is the first paper which I wrote after joining him, and it focused on what was always of prime concern to him: the clarification of concepts. I still recall some of our discussion when I showed him the first draft: he was with it, at least insofar as the limits of space permitted development of the topic. Perhaps I remember this because this paper was in a way an earnest of what my stewardship in his institution should be. The paper was read at the American Anthropological Association annual meetings in Detroit, December 1954, in the Symposium on Economic Factors in Stability and Change. I made no effort then to submit it for publication in any of the appropriate journals because I had taken time out from writing my dissertation to do the paper and returned my attention to that urgent task (it was also my first year of teaching a survey course on African ethnography), and the paper was soon out of mind. Now, after a lapse of time, the question arises, should it be brought up to date? Two quite different things can be implied by this question. First, should more recent data be adduced? To do so would be to write a new paper which would have none of this one's association with W. O. Brown. Furthermore, this paper now has a certain historical value as a contemporary description of some aspects of late colonial conditions. Second, should the interpretation and conclusion be modified in the light of more recent writings? I feel that both can stand. Therefore, no change has been made in the text.

Plant nutrition studies on some yellow and red earth soils in northern Cape York Peninsula. 2. Phosphorus: plant response and soil retention

1976 ◽  
Vol 16 (81) ◽  
pp. 542 ◽  
Author(s):  
WH Winter ◽  
GP Gillman
Keyword(s):  
Dry Matter ◽  
Maximum Yield ◽  
Yield Response ◽  
First Year ◽  
Yield Data ◽  
The Third ◽  
Nitrogen Yields ◽  
P Rate ◽  
Northern Cape ◽  
Cape York

The response of a Stylosanthes guyanensislBrachiaria decumbens pasture to phosphorus on a yellow earth soil in northern Cape York Peninsula was studied over three years. Establishment rates of 0 to 130 kg ha-1 P were used followed by various combinations of 0 or 20 kg ha-1 P in the next two years. With comparisons made at the same cumulative P rate the dry matter and nitrogen yields were not affected by timing of application but P yield was increased in the third year when P was freshly applied. The dry matter yield response was modified by the botanical composition of the pasture. In the first year the pasture was 90-95 per cent legume and 110 kg ha-1 P was required to give 90 per cent of the presumed maximum yield whereas in the third year when the legume content was lower, (increasing from 10 to 40 per cent with P rate) this requirement had been reduced to about 90 kg ha-1 P. The third year P yield data were used to show that the value of applied P declined by about 70 per cent each year. After three years all the applied P was recovered in the 0-60 cm zone and the distribution was not affected by timing of application. In the 0-10 cm zone the acid extractable P increased from 0 with no P applied to 40 p.p.m. with 150 kg ha-1 P applied.

scholarly journals Influence of climatic conditions on productivity and adaptability of Camelina sativa

2020 ◽  
Vol 224 ◽  
pp. 04006
Author(s):  
E L Turina ◽  
T Ya Prakhova
Keyword(s):  
Environmental Conditions ◽  
Steppe Zone ◽  
Camelina Sativa ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Hydrothermal Conditions ◽  
Middle Volga Region ◽  
Hydrothermal Coefficient ◽  
Climate Conditions ◽  
The Crimea

The purpose of the research is to assess the productivity and adaptability of Camelina sativa depending on the natural and climatic conditions of the forest-steppe zone of the Middle Volga region and the steppe Crimea. The researches were conducted in two regions (Penza and Crimea) with contrasting hydrothermal conditions in 2015–2019 years. Climate conditions in the years of researches were characterized by significant variability in both the degree of humidity and temperature regime in both regions. The hydrothermal coefficient in the Crimea varied in the range of 0.23–1.11, in the conditions of Penza - from 0.45 to 1.10. The index of environmental conditions varied from -0.58 to 1.28 units depending on the natural and climatic zone. On average, in 2015–2019, the productivity of Camelina changed from 1.45 to 1.79 t/ha in Penza and from 0.56 to 1.66 t/ha in Crimea. The highest yield of Camelina sativa was recorded in 2016 in Penza and in 2017 in the Crimea and amounted to 1.79 and 1.66 t/ha, respectively. The value of the index of environmental conditions is 1.17 and 1.28 with hydrothermal coefficient of 0.82 and 0.61, respectively. Depending on the conditions of the year and the region, the oil content varied from 33.9 to 43.9 %. At the same time, there is a tendency to decrease the amount of oil for all years of study in the direction from the Crimea to the zone of the Penza region. Camelina sativa is characterized by a high level of resistance to stressful conditions (0.49– 1.10), differs in environmental adaptability (bi=1.15–1.17), has a high fitness criterion, 41.2–41.5 g/m2, depending on the region.

scholarly journals KEY ASPECTS OF THE STUDY OF PSYCHOPHYSIOLOGICAL ADAPTATION OF FIRST-YEAR STUDENTS

2019 ◽  
pp. 109-112
Author(s):  
Svitlana Shevchenko
Keyword(s):  
Well Being ◽  
Physiological Adaptation ◽  
First Year ◽  
Adaptation Period ◽  
First Year Students ◽  
Adaptive Capabilities ◽  
Time Period ◽  
The Right ◽  
Key Aspects ◽  
Communicative Abilities

The article considers and studies the problem of psychophysiological adaptation of freshmen through the concretization of the very concept of adaptation and determination of the time period of the adaptation period. Moreover, carried out a scientific analysis and experimental study of key aspects of psycho-physiological adaptation of first-year students. The levels of adaptive and communicative abilities, neuropsychic stability and moral norm, indicators of psychophysiological adaptation and the main features that indicate the sources of maladaptation have been determined. The criteria for psychophysiological adaptation (state of health, mood, anxiety, fatigue, activity behavior) are highlighted, and prospects for further research are formulated. According to the results of the work it was found that most freshmen have high rates of development of communicative abilities and moral normativity. They really assess their role in the team, in relationships, focusing on compliance with generally accepted norms of behavior. Freshmen are capable of accepting other people as they are, respect their originality and the right to be themselves. The development of such an ability characterizes them as a mature personality. High optimism score and high ability for somatic regulation were found. In addition, a moderate (average) level of psychophysiological maladaptation was found in young people. From time to time, they have certain difficulties associated with changes in the forms, teaching and assessment methods that are characteristic of a comprehensive school, and most often they experience problems due to a deterioration in well- being, namely, due to the characteristics of individual mental processes of freshmen, a decrease their overall activity and a decrease in motivation for any activity. Freshmen are dominated by a low level of development of adaptive abilities and neuropsychic stability. The data obtained indicate the need to develop a system of measures to update the adaptive capabilities of freshmen. We identified this direction as a promising vector for further studies of this problem.

Sign in / Sign up

Export Citation Format

Share Document