scholarly journals Effect of Climatic Conditions on Differences in Thermo-Technical Properties of Organic Bedding in Laboratory Testing

2017 ◽  
Vol 20 (1) ◽  
pp. 1-6
Author(s):  
Jana Lendelová ◽  
Ingrid Karandušovská ◽  
Miroslav Žitňák ◽  
Štefan Boďo ◽  
Štefan Mihina
Keyword(s):  
Thermal Conductivity ◽  
Thermal Resistance ◽  
Thermal Performance ◽  
Dry Matter ◽  
Climatic Factors ◽  
Climatic Conditions ◽  
Matter Content ◽  
Dry Matter Content ◽  
Liquid Manure ◽  
Technical Properties

Abstract The aim of this experiment was to analyse the influence of climatic factors on the thermal performance of separated liquid manure. The samples of organic bedding were collected from the lying area of dairy housing and preparatory store. The measurement of properties of recycled manure solids (RMS) was carried out in laboratory conditions. Samples were examined with determining the temperature effect on the thermal conductivity λ of ’dry‘ separated liquid manure (with a dry matter content of 60%) and ’wet‘ liquid manure (with a dry matter content of 26%), in air temperatures ranging from 0 °C to 40 °C. Subsequently, the thermal resistance of three selected types of cows lying structures was calculated for winter and summer boundary values. Based on the results of thermal conductivity and thermal resistance, it was observed that dry separated liquid manure as an alternative bedding has, in low temperature (up to 5 °C), the most suitable thermal performance if it is maintained in a dry condition (with a dry matter content of 60%). With increasing temperature (above 20 °C) and increasing humidity of bedding (below 26%), thermo-technical properties get worse; however, when comparing the thermal resistance of the cow bed structure with sandwich mattresses with a 50 mm layer of organic bedding and the deep cubicle filled with 200 mm of organic bedding, the thermal resistance of floor structure decreases by 7.6% or 18.4%, respectively. With a proper handling of the recycled organic bedding, it is possible to use its economic advantages.

scholarly journals Potato Maximum Yield as Affected by Crop Parameters and Climatic Factors in Brazil

HortScience ◽  
2008 ◽  
Vol 43 (5) ◽  
pp. 1611-1614 ◽  
Author(s):  
André Pereira ◽  
Nilson Villa Nova
Keyword(s):  
Dry Matter ◽  
Climatic Factors ◽  
Maximum Yield ◽  
Crop Productivity ◽  
Matter Content ◽  
Dry Matter Content ◽  
Potato Tubers ◽  
Tropical Conditions ◽  
Potato Yields ◽  
Crop Parameters

There is currently a great deal of interest in estimating crop productivity as a function of climatic factors by means of different crop weather models. In this article, an agrometeorological model based on maximum carbon dioxide assimilation rates for C3 plants, fraction of photosynthetically active radiation, air temperature, photoperiod duration, and crop parameters is assessed as to its performance under tropical conditions. Crop parameters include leaf area, harvest index, dry matter content of potato tubers, and crop cycles to estimate potential potato yields. Productivity obtained with the cultivar Itararé, grown with adequate soil water supply conditions at four different sites in the state of São Paulo (Itararé, Piracicaba, Tatuí, and São Manuel), Brazil, was used to test the model. The results revealed excellent performance of the agrometeorological model proposed here with an underestimation of irrigated potato productivity of less than 10%.

scholarly journals Some physiological changes in Waldsteinia trifolia (Roch.) leaves in different months of the year

2012 ◽  
Vol 61 (2) ◽  
pp. 85-91
Author(s):  
Renata Wojciechowska ◽  
Tadeusz Kobyłko ◽  
Anna Hostyńska
Keyword(s):  
Chlorophyll A ◽  
Electrolyte Leakage ◽  
Dry Matter ◽  
Climatic Conditions ◽  
Matter Content ◽  
Carotenoid Content ◽  
Anthocyanin Content ◽  
Dry Matter Content ◽  
Leaf Discs ◽  
High Dry Matter

The study concerned an evergreen herbal plant <i>Waldsteinia trifolia</i> Roch. This species can be found more and more often in garden plantings in Poland. The aim of the study was to estimate the content of photosynthetic pigments, anthocyanins and dry matter as well as the permeability of cytoplasmatic membranes of <i>Waldsteinia</i> leaves. Plants grew in an ornamental plant collection at the premises of the Faculty of Horticulture of the Agricultural University in Kraków. The study was conducted in 2006 and 2007 in the following months: March, May, June, September, October and November. The permeability of cytoplasmatic membranes was estimated based on electrolyte leakage from leaf discs at 20°C in relation to total electrolytes in the tissue after unfreezing. The first days with temperature drops down to around 0°C in autumn resulted in a decrease in chlorophyll a, b and carotenoid content, but significantly increased anthocyanin content. The ratio of chlorophyll a to b and the ratio of total chlorophylls to carotenoids did not change in particular months. In both years of study, similar changes in dry matter content of the <i>Waldsteinia</i> leaves were observed. Dry matter content significantly increased in June and November and decreased in May and October. In June and in autumn, after first slight frosts, an increase of electrolyte leakage from the leaf discs was observed. However, high dry matter content (40.3%) was accompanied by lower permeability of the cytoplasmatic membranes of the leaves after winter during March. These results have shown good adaptation of <i>Waldsteinia trifolia</i> plants to the climatic conditions in Poland.

scholarly journals Сорта картофеля для переработки

2020 ◽  
Author(s):  
V.K. Serderov ◽  
T.G. Khanbabaev ◽  
D.V. Serderovа
Keyword(s):  
Dry Matter ◽  
Arid Zone ◽  
Humus Content ◽  
Weather Conditions ◽  
Growing Season ◽  
Climatic Conditions ◽  
Matter Content ◽  
Potato Cultivars ◽  
Dry Matter Content ◽  
The Republic

Наряду с правильной организацией базой хранения, для эффективного использования картофеля большое значение имеет его переработка. Содержание сухого вещества один из показателей качества пригодности сортов картофеля для его переработки. В статье обобщены результаты оценки урожайности сортов картофеля в климатических условиях высокогорья Республики Дагестан и содержания в клубнях сухого вещества как критерия пригодности сортов для переработки на картофелепродукты. Исследования проводили в опорном пункте Курахский , МО Курахский район Республики Дагестан, расположенном на высоте 2000 2200 м над уровнем моря в 2017 и 2018 годах. Контроль районированный в республике среднеранний сорт Волжанин. Схема посадки 70 30 см, повторность четырехкратная. Почвенный покров представлен горными каштановыми среднесуглинистыми почвами. Содержание гумуса 2,91-3,01. Питательными веществами почвы обеспечены в средней степени: гидролизуемого азота 2,2-3,5 мг, подвижного фосфора 4-6 мг и обменного калия 12,5-16,5 мг на 100 г. Погодные условия вегетационных периодов были благоприятные для возделывания картофеля. Средняя температура воздуха во время посадки (май) составила 11-12 С, а во время вегетации летние месяцы 14-16 С. Опытные участки расположены опыты в засушливой зоне, так как выпадающие осадки во время вегетации (в среднем 60-80 мм в месяц) недостаточны для роста и развития картофеля. За время вегетации были проведены пять поливов по бороздам из расчета 50 л на м2 (500 м3/га). По урожайности (31,438,7 т/га) в сравнении с контролем выделились сорта: Импала, Ирбитский, Жуковский ранний, Манифест, Матушка, Невский, Примобелла, Розара, Сильвана, Спиридон и Удача. По содержанию сухого вещества (25,829,1) в сравнении с контролем выделились сорта: Алена, Нарт, Гиоконда, Матушка, Росси, Вектор, Примобелла, Импало и Дезире.Along with the correct organization of storage base, for the effective use of potatoes, its processing is of great importance. The dry matter content is one of the indicators of the quality of potato cultivars suitability for processing. The article summarizes the results of assessment of the yield of potato cultivars in the climatic conditions of the highlands of the Republic of Dagestan and the content of dry matter in tubers as a criterion for the suitability of cultivars for processing into potato products. The research was carried out in the reference point Kurakhsky, MO Kurakhsky district of the Republic of Dagestan, located at an altitude of 2000-2200 m above sea level in 2017 and 2018. Control-zoned in the Republic of mid-early cultivar Volzhanin. Planting scheme is 70 30 cm, repeat-four times. The soil is mountain brown medium loamy. Humus content is 2.91-3.01. Soil nutrients are provided to an average extent: hydrolyzed nitrogen 2.2-3.5 mg, mobile phosphorus 4-6 mg and exchange potassium 12.5-16.5 mg per 100 g. The weather conditions of the growing season were favourable for potato growing. The average air temperature during planting (May) was 11-12 C, and during the growing season the summer months was 14-16 C. Experimental plots are located in the arid zone, as precipitation during the growing season (on average 60-80 mm per month) is not sufficient for the growth and development of potatoes. During the growing season, five furrow irrigation was carried out at the rate of 50 l per m2 (500 m3/ha). In terms of yield (31.438.7 t/ha) in comparison with the control, the following cultivars were distinguished: Impala, Irbitsky, Zhukovsky ranniy, Manifest, Matushka, Nevsky, Primobella, Rosara, Silvana, Spiridon and Udacha. According to the dry matter content (25.829.1) in comparison with the control, the following cultivars were distinguished: Alena, Nart, Gioconda, Matushka, Rossi, Vector, Primobella, Impala and Desire.

scholarly journals Hygrothermal Analysis And Prediction Of Long-Term Thermal Performance Of Aerogel-Enhanced Superinsulation Products

2021 ◽  
Author(s):  
Hamideh (Roya) Nosrati
Keyword(s):  
Thermal Properties ◽  
Thermal Resistance ◽  
Thermal Performance ◽  
Climatic Factors ◽  
Accelerated Aging ◽  
Climatic Conditions ◽  
Aging Effects ◽  
Insulating Materials ◽  
Hygrothermal Analysis ◽  
The Impact

Aerogel-enhanced insulating materials provide significantly higher thermal resistance per unit of thickness compared to conventional insulating materials. These superinsulation materials are relatively new in the construction industry, and their thermal properties under different hygric conditions and their durability are still unknown. In this study, the main characteristics of a variety of aerogel-based materials under different climatic conditions were studied. Furthermore, the samples underwent accelerated aging tests, and the impact of aging on the thermal performance of aerogel-based products was investigated. The results showed that the thermal properties of aerogel-based products are affected by moisture content and their thermal resistance degraded under extreme humidity conditions. The analysis of the aging effects showed that aerogel-based products would maintain their superior thermal performance over time. The average increase in the thermal conductivity (compared to the pristine condition) was below 10% after the equivalent of twenty years of aging under various climatic factors.

scholarly journals Stability of showing of biochemical traits of courgette fruits under different conditions of growing linear material

2020 ◽  
Vol 11 (3) ◽  
pp. 70-79
Author(s):  
S. I. Kondratenko ◽  
◽  
T. V. Shevchenko ◽  
O. V. Sergienko ◽  
O. P. Samovol ◽  
...  
Keyword(s):  
Vitamin C ◽  
Dry Matter ◽  
Climatic Conditions ◽  
Matter Content ◽  
Total Sugar ◽  
Dry Matter Content ◽  
Organic Cultivation ◽  
Linear Material ◽  
The Creation ◽  
Growing Conditions

In connection with the development of organic vegetable growing in Ukraine, the topical issue of courgette breeding is the creation of varieties and hybrids of F1 with maximum adaptability to soil and climatic conditions of cultivation. The purpose of research is to identify genetic sources for the breeding of courgette with a stable manifestation of biochemical characteristics of the fruit. Breeding work was carried out with 20 lines of courgette of different geographical origin. Evaluation of linear genotypes was performed on the following indicators – general (GACi) and specific adaptive capacity (SACi), relative stability (Sgi), coefficient of ecological plasticity (bi) and selection value (BVGi). Courgette lines with a high content of dry matter, total sugar and vitamin C in fruits in the phase of technical ripeness have been created. Among them, 2 highly adaptive lines, which simultaneously exceeded the standard variety Chaklun in terms of dry matter content (4.46… 4.71%) and total sugar (2.77… 2.84%). Highly adaptive lines, better than the standard grade for the manifestation of one feature - the dry matter content – 1 line (4.58%), total sugar – 3 lines (2.72… 2.77%), vitamin C – 2 lines 14.93… 15.55 mg / 100 g). Low dependence on growing conditions at the same time on the manifestation of 2 traits (dry matter content and vitamin C in the fruit) was demonstrated by 3 lines (-1 Less than bi Greater than 1). The obtained lines are a valuable source material for the creation of varieties and hybrids of courgette F1, suitable for organic cultivation technologies with high quality fruits in the phase of technical maturity.

Climatic Factors and Potato Growth

1966 ◽  
Vol 2 (2) ◽  
pp. 129-137 ◽  
Author(s):  
E. G. B. Gooding
Keyword(s):  
Dry Matter ◽  
Climatic Factors ◽  
Inverse Correlation ◽  
Matter Content ◽  
High Yield ◽  
Dominant Factor ◽  
Dry Matter Content ◽  
High Rainfall ◽  
High Dry Matter ◽  
Potato Growth

SummaryIn connection with the processing of potatoes grown at Tarland, Aberdeenshire, certain field data were obtained over a period of eight years. It was found that the yield per acre was inversely correlated with rainfall and positively correlated with sunshine for the period May to September; the indications were that the period May to July was more important in this respect, high rainfall and low sunshine during this period depressing the crop more than high rainfall in the August to September period. It has been possible, statistically, to separate the effect of rainfall from that of sunshine (and temperature), and an analysis shows that sunshine (or temperature) is die dominant factor. The number of tubers produced was greatest in those years when sunshine was high and rainfall low. The dry matter content of die tubers was also highest when the sunshine was high and the rainfall low, the closest inverse correlation being with the rainfall for the month of August. The combination of high yield of potatoes and high dry matter content meant that the actual food produced was highest in the drier, more sunny, years.

scholarly journals Hygrothermal Analysis And Prediction Of Long-Term Thermal Performance Of Aerogel-Enhanced Superinsulation Products

2021 ◽  
Author(s):  
Hamideh (Roya) Nosrati
Keyword(s):  
Thermal Properties ◽  
Thermal Resistance ◽  
Thermal Performance ◽  
Climatic Factors ◽  
Accelerated Aging ◽  
Climatic Conditions ◽  
Aging Effects ◽  
Insulating Materials ◽  
Hygrothermal Analysis ◽  
The Impact

Aerogel-enhanced insulating materials provide significantly higher thermal resistance per unit of thickness compared to conventional insulating materials. These superinsulation materials are relatively new in the construction industry, and their thermal properties under different hygric conditions and their durability are still unknown. In this study, the main characteristics of a variety of aerogel-based materials under different climatic conditions were studied. Furthermore, the samples underwent accelerated aging tests, and the impact of aging on the thermal performance of aerogel-based products was investigated. The results showed that the thermal properties of aerogel-based products are affected by moisture content and their thermal resistance degraded under extreme humidity conditions. The analysis of the aging effects showed that aerogel-based products would maintain their superior thermal performance over time. The average increase in the thermal conductivity (compared to the pristine condition) was below 10% after the equivalent of twenty years of aging under various climatic factors.

scholarly journals CHANGE OF MAINTENANCE OF DRY SUBSTANCES AND STARCH IN TUBERS OF POTATO IN DEPENDENCE ON TERMS OF TILL

2019 ◽  
pp. 80-83
Author(s):  
V. K. Serderov ◽  
T. G. Chanbabaev ◽  
D. V. Serderova
Keyword(s):  
Dry Matter ◽  
Starch Content ◽  
Potato Industry ◽  
Climatic Conditions ◽  
Matter Content ◽  
Dry Matter Content ◽  
Potato Tubers ◽  
Scientific Center ◽  
High Dry Matter ◽  
High Level

Potatoes is the most important food crop, one of the main crops grown throughout the world. A way to improve the profitability of the potato industry is processing. The processing production requires special varieties of potatoes. Tests were carried out by the department of vegetable breeding «Agrarian scientific center of republic of Dagestan» in 2017-2018 with the purpose of study the effect of soil-climatic conditions of Dagestan highlands on dry matter and starch content in potato tubers for production of processed potato products. Processing of potatoes is one of the methods to increase profitability of industry. One of the quality indexes of the use of potato varieties for their processing is high level of dry matter and starch. As a result of the research, the following varieties were identified: high-yielding are Impala, Irbit, Zhukovsky Ranniy, Manifesto, Matushka, Nevsky, Primabella, Rosara, Silvana, Spiridon and Udacha; high dry matter content are Alena, Vektor, Dzhokonda, Desiree, Matushka, Nart, Primabella and Rossi; high in starch: Desiree - 23%, Vector and Primabella - 22.2% each. The results of the present investigation revealed that climate of the mountainous areas of Dagestan republic promotes the increase of dry matter and starch content in potato tubers by 3-4%.

Optimum harvest date of maize for biogas and silage purposes

2009 ◽  
Vol 57 (2) ◽  
pp. 119-125
Author(s):  
G. Hadi
Keyword(s):  
Dry Matter ◽  
Biogas Production ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Dry Mass ◽  
Matter Content ◽  
Harvest Date ◽  
Dry Matter Content ◽  
Dry Matter Yield ◽  
Vegetative Organs

The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction in the dry matter content was sometimes observed as a function of the length of the vegetation period. The data suggest that, with the exception of extreme weather conditions or an extremely long vegetation period, the maximum dry matter yield could be expected to range from 22–42%, depending on the vegetation period of the variety. The harvest date should be chosen to give a kernel moisture content of above 35% for biogas production and below 35% for silage production. In this phenophase most varieties mature when the stalks are still green, so it is unlikely that transport costs can be reduced by waiting for the vegetative mass to dry.

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