Browsing by Author "Konvalina, Petr"

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  • Agronomic characteristics and baking quality of Triticum spelta L. 
    Konvalina, Petr; Moudrý, Jan; Capouchová, Ivana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2013)
    As the winter forms of spelt wheat are more frequent than the spring forms, our experiment focused on the spring spelt wheat forms, and we studied and evaluated characteristics and qualities of genetic resources of the ...
  • Carbon dioxide equivalent emission load within production and processing of wheat under conditions of organic and conventional farming systems 
    Moudrý Jr., Jan; Jiroušková, Zuzana; Hyšpler, Robin; Konvalina, Petr; Plch, Radek; Moudrý, Jan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    The achieved results proved, that the conventional wheat production release the CO2e amount of 0, 5581 kg into the air compared to 0, 4624 kg of CO2e produced by organic wheat. Higher amount of emission reached within ...
  • Comparative Influence of Biochar and Zeolite on Soil Hydrological Indices and Growth Characteristics of Corn (Zea mays L.) 
    Ghorbani, Mohammad; Amirahmadi, Elnaz; Konvalina, Petr; Moudrý, Jan; Bárta, Jan; Kopecký, Marek; Teodorescu, Răzvan-Ionuț; Bucur, Roxana-Dana (MDPI, 2022-11-02)
    Biochar and zeolite, due to their porous structure, are supposed to be appropriate soil amendments especially in agricultural areas with a lack of water or unsuitable soils with coarse texture. Two soil additions that are ...
  • Comparison of germination of selected energy grasses species within different water regimes 
    Bernas, Jaroslav; Kopecký, Marek; Moudry jr., Jan; Moudrý, Jan; Jelínková, Zuzana; Konvalina, Petr (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    Grasslands in the landscape fulfil not only a number of important functions but they are also relevant in terms of production. One of the ways how to utilize biomass effectively is its use in power engineering. Currently, ...
  • Current conditions for seed use in the czech organic farming 
    Konvalina, Petr; Capouchová, Ivana; Stehno, Zdeněk; Hůda, Pavel; Bláha, Ladislav; Moudrý Jr., Jan; Moudrý, Jan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    Council Regulation (EC) No. 834/2007, and Commission Regulation (EC) No. 889/2008, are the most important European legislative instructions on organic farming (OF). They lay down a permit to use just organic seeds (OS) ...
  • Effect of fertilization on the yields of tall wheatgrass harvested once a year 
    Kopecký, Marek; Moudry jr., Jan; Bernas, Jaroslav; Jelínková, Zuzana; Konvalina, Petr; Váchalová, Radka; Moudrý, Jan; Kolář, Ladislav (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2016)
    With the growing demand for energy, the requirements for energy sources have been growing too. In advanced countries, there has been a substantial development of renewable sources. In the conditions of Central Europe, ...
  • Emissions of greenhouse gases from the egg production within the conventional and organic farming system 
    Moudrý, Jan; Jelínková, Zuzana; Kopecký, Marek; Bernas, Jaroslav; Moudrý, Jan; Konvalina, Petr; Kalkuš, Václav (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    The study compared the environmental load arising from the GHG emissions within breeding of laying hens and egg production in the context of the representative organic and conventional farm. As a tool for evaluating this ...
  • The energy and environmental potential of waste from the processing of hulled wheat species 
    Bernas, Jaroslav; Konvalina, Petr; Burghilă, Daniela-Vasilica; Teodorescu, Răzvan-Ionuț; Bucur, Daniel (MDPI, 2020-12-01)
    Organic farmers farming on arable land have often had, in addition to the cultivation of common species of cultivated crops (such as wheat, rye, triticale or potatoes), interest in the cultivation of marginal crops such ...
  • Feasibility of biochar derived from sewage sludge to promote sustainable agriculture and mitigate GHG emissions - a review 
    Ghorbani, Mohammad; Konvalina, Petr; Walkiewicz, Anna; Neugschwandtner, Reinhard W.; Kopecký, Marek; Zamanian, Kazem; Chen, Wei-Hsin; Bucur, Daniel (MDPI, 2022-10-10)
    Sewage sludge (SS) has been connected to a variety of global environmental problems. Assessing the risk of various disposal techniques can be quite useful in recommending appropriate management. The preparation of sewage ...
  • Genetic resources of emmer wheat and their prospective use in organic farming 
    Konvalina, Petr; Capouchová, Ivana; Stehno, Zdeněk; Moudry jr., Jan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2012)
    Emmer wheat [Triticum diccocum (Schrank) Schuebl] is an example of a crop which has been largely grown in less favourable farming areas (i. e. less fertile montane lands, arid areas, etc.). Our paper work aims at a ...
  • Greenhouse gas emissions within the production of potatoes in Central Europe 
    Moudry jr., Jan; Jelínková, Zuzana; Moudrý, Jan; Konvalina, Petr (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2012)
    Potatoes are cultivated in conventional as well as in organic farming systems and although the production area itself is not large as compared to other crops (e.g. 1.17 % of arable land in the Czech Republic, 2.14 % in ...
  • Greenhouse gases emissions from oat production within conventional and organic farming 
    Moudry jr., Jan; Bernas, Jaroslav; Jelínková, Zuzana; Kopecký, Marek; Konvalina, Petr; Moudrý, Jan; Slabá, Jiřina (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2015)
    Climate changes and the anthropogenic impact have been a frequently discussed issue in recent years. The GHG production is significantly influenced by industry, transport, as well as by agriculture which ranks among the ...
  • Interaction of biochar with hemical, green and biological nitrogen fertilizers on nitrogen use efficiency indices 
    Ghorbani, Mohammad; Konvalina, Petr; Neugschwandtner, Reinhard W.; Kopecký, Marek; Amirahmadi, Elnaz; Bucur, Daniel; Walkiewicz, Anna (MDPI, 2022-09-04)
    Chemical nitrogen (N) fertilizers are regarded as one of the environmental contaminants in addition to the necessity for fossil sources for their production. Conversely, it is impossible to neglect the supply of nitrogen ...
  • LCA method - Tool for food production evaluation 
    Jelínková, Zuzana; Moudry jr., Jan; Moudrý, Jan; Bernas, Jaroslav; Kopecký, Marek; Konvalina, Petr (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    Food is one of the basic human physiological needs which cannot be substitute in any way or by anything. Like every human activity, also the food production has impact on the environment. In particular, people from developed ...
  • Maize production for energy purposes - the emission load 
    Bernas, Jaroslav; Moudrý, Jan; Jelínková, Zuzana; Kopecký, Marek; Konvalina, Petr; Moudrý, Jan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2015)
    The trend of increase in energy consumption has been recorded in a civilized society. Fossil fuels are the main sources. However, their world's reserves are limited. Therefore, developed countries pursue the possibilities ...
  • Organic seed production in the Czech Republic 
    Konvalina, Petr; Benková, Ludmila; Moudrý, Jan; Bernas, Jaroslav; Kopecký, Marek (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2015)
    The Council Regulation (EC) No. 834/2007, and the Commission Regulation (EC) No. 889/2008, lay down the law to solely use organic seeds in order to establish organic crop stands. The seed must originate from plants being ...
  • Organic wheat seed quality 
    Konvalina, Petr; Capouchová, Ivana; Honsová, Hana; Prokinová, Evženie; Janovská, Dagmar; Bernas, Jaroslav; Kopecký, Marek; Moudrý, Jan; Jelínková, Zuzana; Moudrý, Jan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    The Council Regulation (EC) No. 834/2007, and the Commission Regulation (EC) No. 889/2008, are the most important European legislative instructions addressing organic farming. EU regulation lay down the law to solely ...
  • Weed competitivenness of winter and spring wheat in organic farming 
    Konvalina, Petr; Kopecký, Marek; Bernas, Jaroslav; Moudrý, Jan; Suchý, Karel; Machková, Božena (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2016)
    Weed plants are one of the main factors limiting the level of agricultural yield. Damages are very important in organic farming now. Because of the availability of herbicides in the last 50 years, the natural competitiveness ...
  • Winter wheat mixtures influence grain rheological and Mixolab quality 
    Hoang, Trong-Nghia; Kopecký, Marek; Konvalina, Petr ("Ion Ionescu de la Brad" Iasi University of Life Sciences, Iași, 2022-07-08)
    This study aims to investigate the effect of a mixture of winter wheat varieties on grain rheological characteristics and the quality of wheat flour analyzed by Mixolab. In the 2019-2020 growing season, a small plots ...