115 Works

Plankton samples of inland waters : [catalog]

Reet Laugaste, Henn Timm & Evi Lill
The number of sampled waterbodies was 1017. Most of the samples (22,900) have been collected from Estonia. There are also more than 800 samples from Russia (mainly from the eastern and southern part of Lake Peipsi) and ca 100 from other countries. In addition, there are also some samples of the Baltic Sea. Register code: according to the Estonian environmental register: https://keskkonnaagentuur.ee/en Of the total material, more than 13,000 specimens are phytoplankton, the rest is...

Research of mechanized process of organic waste composting

Elchyn Aliiev, Sergey Pavlenko, Gennadii Golub & Olena Bielka
The article is devoted to mechanising composting based on energy-saving technical systems. The goal of the research is to determine the patterns that describe the impact of different drum-blade working bodies' design and technological parameters on their work energy performance, the homogeneity of the mixture components distribution and their structure in the formed composting pad of a certain height. The physical-mathematical model of the mechanized composting process of organic raw materials from agroecosystems by technical...

Supplementary materials to the article \"Medicinal Plants in Semi-Natural Grasslands: Impact of Management\"

Katrin Heinsoo
The supplementary material contains (S1) species accumulation curves of different habitats based on species lists originating from https://dspace.emu.ee/xmlui/handle/10492/6300 and the Estonian Environmental Board database. Lists of Estonian MP species (S2) by each scenario are based on the following literature sources: Estonian Agency of Medicine. Ravimina Määratletud Raviomadustega Ainete ja Taimede Nimekiri; 2020 (access 25.11.2020) (scenario 1); Tammeorg, J.; Kook, O.; Vilbaste, G. Eesti NSV Ravimtaimed, 5th ed.; Valgus: Tallinn, Estonia, 1984 (scenario 2) and Raal,...

Application efficacy of newly released pre-mixed herbicide in winter wheat: Joystick®

Ebrahim Mamnoie, Mohammad Reza Karaminejad, Akbar Aliverdi & Minbashi Moein Moeini
In a field experiment, the efficacy of the newly released pre-mixed herbicide, Joystick®, in comparison with other pre-mixed herbicides was evaluated in winter wheat, Iran. The treatments included: weedy check, weed-free check (hand-weeded), Bromicide®MA at 600 g a.i. ha–1 + Axial® at 60 g a.i. ha–1 , Othello® at 96 g a.i. ha–1 , Axial One® at 55, 65, 75, and 85 g a.i. ha–1 , Joystick® at 80, 94, and 108 g a.i. ha–1...

Productivity and stability of foothill meadow species in the Balkan Mountains conditions

Natalia Georgieva, Valentin Kosev, Dimitar Mitev & Ina Stoycheva
The creation of grasslands with the participation of species of local origin, suitable for the climatic conditions of the region and with increased productivity and stability of yield is an important condition for ensuring sustainable or organic feed production. For ecological assessment of meadow species in the semi-mountainous regions of Balkan Mountains according to indicators and parameters related to productivity and stability, an experiment is carried out in the period 2011–2019 in the following variation:...

The effect of cover crops on biomass and nitrogen accumulation and on crop yield

Merili Toom
The aims of the thesis were to evaluate the biomass and N accumulation of winter cover crop species (winter rye, winter turnip rape, forage radish, berseem clover and hairy vetch), winter hardiness of hairy vetch, the effect of sowing date on biomass and N accumulation and the effect of CCs on the yield of subsequent spring barley. The results showed that CC biomass and N accumulation depended on species and growing conditions, especially the sum...

Adaptation of various maize hybrids when grown for biomass

M.V. Radchenko, V.I. Trotsenko, A.O. Butenko, I.M. Masyk, Z.I. Hlupak, O.I. Pshychenko, N.O. Terokhina, V.M. Rozhko & O.Y. Karpenko
The aim of this research is to optimize growth and development of maize for biomass by selecting maize hybrids to fulfill their productivity potential. The following maize hybrids were the subject of research: Forteza, DM Native, DM Skarb. The greatest height of plants was formed in the interphase period of milk-wax maturity of grain in hybrid Forteza - 286.4 cm. In hybrid DM Native the height of plants was - 271.2 cm, hybrid DM Skarb...

Nutritious lentil and rice meal for sustainable vegan and pescatarian diet

I. Lignicka, A. Graci (Balgalve) & A.M. Zīdere-Laizāne
Urbanization has been accompanied by changes towards diets that have placed increased pressure on the environment and human health. Shifting diet from beef towards lessimpactful proteins is the most important policy goal for dietary sustainability in 2050. Fish can also help to shift to lower emission diets, fish-eaters have nearly the same emissions profile as strict vegetarians. The aim of this study was to develop quick preparation lentil and rice meals that would be suitable...

Possibilities of cucumber powdery mildew detection by visible and near-infrared spectroscopy

I. Alsiņa, G. Bimšteine, L. Dubova, J. Kaņeps, K. Kviesis, B. Bankina, M. Dūma & A. Avotiņš
Cucumbers are one of the most demanded and widely grown greenhouse vegetables. Important factors that influence quality and quantity of yield are diseases. Powdery mildew (caused by Podosphaera xanthii and/or Golovinomyces cichoracearum), is one of the most harmful cucumber diseases. Early detection of mildew via non-destructive methods can optimize schemes of fungicide application. The study aimed to find regularities in the reflected light spectra, indices described in the literature, and severity of mildew. Plants were...

False flax (Сamelina sativa L.) and oil flax (Linum usitatissimum L.) – an important source of deficient omega-3 fatty acids

V. Lykhochvor, Y. Olifir, R. Panasiuk & M. Tyrus
Spring false flax (Camelina sativa L.), oil flax (Linum usitatissimum L.), spring rape (Brassica napus oleifera annua Metzd.), white mustard (Sinapis alba L.), and blue mustard (Brassica juncea Czern) were studied in order to establish their yield, oil content and quality. It was found that the highest seed yield (2.82 t ha-1 ) was formed by spring rape. Yields were also high in spring false flax (2.68 t ha-1 ) and oil flax (2.34 t...

Agrochemical methods for reducing the translocation ability of heavy metals in sod-podzolic soil

Yu.A. Mazhayskiy, T.M. Guseva, S.M. Kurchevskiy & V.V. Vcherashnyaya
The impact of technogenesis on the agricultural landscape contributes to the contamination of all its components by heavy metals. The main measure to protect the environment from the input of heavy metals is the prevention of pollution, which is achieved by improving the technology of agricultural production. The development of methods for the agrochemical rehabilitation of technogenically polluted soil, which ensure the receipt of environmentally safe crop products, is an urgent task. The paper presents...

Effect of foliar products on the inflorescence yield of lavender and essential oil

N. Minev, A. Matev, N. Yordanova, I. Milanov, M. Sabeva & M. Almaliev
The topic of the effect of foliar fertilization on the productivity and oil content of lavender is relevant, but not sufficiently studied. The present study aims to establish the effect of foliar products on the growth, development and productivity of lavender. The field experiment was carried out at the Agricultural University - Plovdiv with lavender of ‘Jubileina’ variety during 2019–2020. The following variants were included in the study: 1. Untreated control; 2. Treatment with Fertileader...

Effect of water deficit on the growth and yield on different genotypes of tomato in semi-arid climate condition

Aziz Mahdi Abd Al-Shammari & Ghassan Jaafar Hamdi
In areas where the supply of water for irrigation is limited, tomato production is often subject to drought stress. This study was conducted at the Department of Horticulture and Landscape Gardening, University of Diyala, Baqubah, Iraq in 2021 wherein 22 genotypes ('S.G', 'San II', 'M.O', 'Red Pear', 'F.R', 'Marb', 15 F1 hybrids were obtained from 6×6 half diallel cross and 'Bobcat' control hybrid) were cultivated under full irrigation [covering 100% of crop evapotranspiration demands (ETc)]...

Duration of low temperature changes physiological and biochemical attributes of rice seedling

S. Talukder, M.A.A. Mamun, M.S. Hossain, M.A.R. Khan, M.M. Rahman, M.R. Talukder, M.M. Haque & J.C. Biswas
The low temperature (LT) is detrimental to growth of rice seedling during boro season in Bangladesh. An experiment was conducted in growth chamber during June to October, 2021 using BRRI dhan29 as planting material. The aim of this experiment was to determine the effect of variable duration of LT on growth, physiological and biochemical traits of rice seedling and to determine the age of seedling that can tolerate cold effect. In this experiment 5, 10,...

Tartaric acid synthetic derivatives effect on phytopathogenic bacteria

A.R. Mikaelyan, B.G. Babayan, A.A. Vartanyan & H.V. Tokmajyan
The scientific goals of current research were devoted to targeted derivatization of natural tartaric acid (TA) for the enhancement of antimicrobial properties of it such as like the effects of them on multi-drug resistant phytopathogenic bacteria, depends to their structure features and the genetic parameters of studied microorganisms. The main utilitarian goal is to develop new class of antimicrobial biodegradable compounds with possible prospective application as moresafe alternative to traditional antibiotics applicable for: agriculture, horticulture,...

The system of soil protection and general balance of main nutrient elements in perennial plantations of semi-desert natural soil zone of Armenia

S.S. Harutyunyan, L.G. Matevosyan, A.G. Ghukasyan & M.H. Galstyan
The aim of the research is to study the biological removal of the main nutrient elements from the most common technical grape varieties, as well as from apricot and peach plantations in the farms, situated on semi-desert natural soils of Armenia, to identify the extent of their input and losses due to natural factors and to calculate the balance associated with the soil conservation system in the absence of comprehensive fertilization. In the inter-row spaces...

Wheat-Faba bean intercrops improve plant nutrition, yield, and availability of nitrogen (N) and phosphorus (P) in soil

G. Kaci, W. Ouaret & B. Rahmoune
In order to promote agroecological practices, this study compares two cropping systems, i.e., intercropping versus sole cropping of a cereal - durum wheat (Triticum durum Desf. ) and a nitrogen-fixing legume - faba bean (Vicia faba L.) on plant growth, Efficiency in the use of rhizobial symbiosis (EURS), grain yield and phosphorus (P) and nitrogen (N) accumulation in soil and plant. This study conducted during two cropping seasons in a field trial in the region...

Role of planting density on the growth efficiency of Juniperus virginiana L. under open-air hydroponic conditions of the Ararat Valley

Kh.S. Mayrapetyan, A.S. Eghiazaryan, S.A. Eloyan & A.S. Karapetyan
Juniperus virginiana (J. virginiana) is an evergreen coniferous tree, which has wide usage not only in green construction, but also in folk medicine as a source of valuable bioactive substances. The high demand for the tree forces the development of new methods for plant cultivation. Hydroponics is considered to be one of the most popular methods. As the soilless growing perspectiveness of J. virginiana in Armenia has previously been confirmed by our experiments, the optimization...

The use of SSR-markers in rice breeding for resistance to blast and submergence tolerance

E. Dubina, P. Kostylev, S. Garkusha, M. Ruban, S. Lesnyak, Y. Makukha, S. Korzh, D, Nartymov & O. Gorun
The identification of effective specialized DNA markers providing the clear control of target locus inheritance by the trait of submergence tolerance has been conducted. Among the studied set of microsatellite markers, two the most informative SSR-markers - RM 7481, PrC3 showed high efficiency in detecting intraspecific polymorphism of rice varieties and lines used in the work. With the use of these markers the clear genotype marking the obtained hybrid rice plants by this trait has...

Evaluating the drivers of environmental sustainability practices – mango farm managers’ perspective

C.M. Muangmee, N.K. Kassakorn, N.M. Meekaewkunchorn, B.K. Khalid & M.U. Urbański
This study evaluated the drivers of environmental sustainability practices using mango farm managers in Thailand. The purpose was to ascertain farmers' ability to conserve natural resources and protect the ecosystem. This was necessitated to raise environmental awareness, promote sustainable human development, and increase economic growth and quality of life. The study adopted a quantitative survey design with primary data collected from mango farm managers in four provinces in Thailand. Data were collected from a total...

Growth characteristics of American Ginseng (Panax quinquefolius L.) woods and field - cultivated at Northern Europe

A. Kronberga, I. Nakurte, L. Kaļāne, R. Abaja, M. Berga, A. Primavera & I. Mežaka
In Latvia, Northern Europe, American ginseng was grown in three forest types with different dominant species, as well as in agricultural field conditions - cultivated under artificial shade with three different types of mulches. Field cultivation yielded higher yields, root length, and root weight than wood cultivation under dominant species Corylus avellana, Betula pendula, and Picea abies. Mulching had a positive impact on ginseng growth in the field. Mulching with straw and buckwheat hulls resulted...

Research of a contact stresses in swivel elements of flexible shaft in screw conveyor for transportation of agricultural materials

Volodymyr Bulgakov, Jüri Olt, Semjons Ivanovs, Oleksandra Trokhaniak, Jaroslav Gadzalo, Valerii Adamchuk, Mykhailo Chernovol, Simone Pascuzzi, Francesco Santoro & Margus Arak
The paper presents the new design of the rotating part with ball-bearing swivel joints between its sections for flexible screw conveyors. The new design provides for the improvement of the operation efficiency and loading capacity, the enhancement of the technological capabilities and the reduction of the admissible curvature radius. The contact stresses in the swivel element as the most loaded area in the rotating part have been analysed. It has been established that the maximum...

Whey permeate-derived milk acidifier for dairy calves

U. Antone, I. Eihvalde, L. Liepa, A. Ilgaza, M. Zolovs & J. Liepins
A milk acidifier obtained from whey permeate fermenting it with dairy propionic acid bacteria was tested in this study to evaluate the effects of milk acidification on the health and growth performance of pre-weaned dairy calves. The study consisted of 30 neonatal Holstein female calves, allocated to three treatments fed unacidified (Control group) or acidified (EG-1 and EG-2 groups) pasteurised milk during the 7–75 day age. Control and EG-1 were fed milk by divided method...

Supplementary materials to the article \"Catchment soil characteristics predict organic carbon, nitrogen, and phosphorus levels in temperate lakes\"

Margot Sepp, Toomas Kõiv, Peeter Nõges, Tiina Nõges, Silvia E. Newell & Mark J. McCarthy
The supplementary material contains 6 tables. This study was funded by the Estonian Research Council grants PUTJD954, PRG709, and PRG1167, by the European Regional Development Fund through Estonian University of Life Sciences ASTRA project “Value-chain based bio-economy”, and by the European Union H2020 WIDESPREAD grant 951963 (TREICLAKE). The Estonian Ministry of Environment and the Estonian Environment Agency supported data collection in the national monitoring program.

Consumers' profile analysis for chicken meat, during the first wave of COVID-19 pandemic : Case of Northern Greece

Marina Stamatopoulou & Irini Tzimitra-Kalogianni
During the years of 2015–2016 in Greece, an increase of imports of poultry meat has been occurred on a level of 10.2%, whereas in the years of 2018–2019 the increase has only reached the level of 1.9%. On the contrary, a reduction on a level of 14.2% on poultry meat imports, in Greece, between the years of 2019–2020 have shown the possible implications of the COVID-19 pandemic to poultry meat consumption and possibly to chicken...

Registration Year

  • 2022
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  • Estonian University of Life Sciences
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  • National Academy of Agrarian Sciences of Ukraine
    1
  • Central Ukrainian National Technical University
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  • University of Bari Aldo Moro
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  • Latvia University of Life Sciences and Technologies
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  • National University of Life and Environmental Sciences of Ukraine
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