Browsing by Author "Konvalina, Petr"

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  • 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 ...
  • 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 ...
  • 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 ...
  • Bernas, Jaroslav; Kopecký, Marek; Moudrý 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, ...
  • 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) ...
  • Kopecký, Marek; Moudrý 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, ...
  • 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 ...
  • Konvalina, Petr; Stehno, Zdeněk; Capouchová, Ivana; Moudrý Jr., Jan; Jůza, Martin; Moudrý, Jan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2010)
    Emmer wheat [(Triticum dicoccum Schrank (Schuebl)] is after bread, durum and spelt wheat further species of wheat used for economic purposes. Organic farmers and producers have become more and more interested in marginal ...
  • 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 ...
  • 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 ...
  • Konvalina, Petr; Capouchová, Ivana; Stehno, Zdeněk; Moudrý 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 ...
  • Moudrý 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 ...
  • Moudrý 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 ...
  • 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 ...
  • Jelínková, Zuzana; Moudrý 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 ...
  • 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 ...
  • Kopecký, Marek; Kolář, Ladislav; Konvalina, Petr; Strunecký, Otakar; Teodorescu, Florina; Mráz, Petr; Peterka, Jirí; Váchalová, Radka; Bernas, Jaroslav; Bartoš, Petr; Filipov, Feodor; Bucur, Daniel (MDPI, 2020-10-11)
    Global deposits of concentrated phosphates, which are a necessary source for the production of phosphate fertilizers, are limited. These reserves keep getting thinner, and every day, large amounts of phosphorus end up in ...
  • 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 ...
  • 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 ...
  • Moudrý Jr., Jan; Konvalina, Petr; Moudrý, Jan; Prokešová, Markéta (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2010)
    Together with rising importance of renewable resources for the world energy industry the usability of energy crops has been more and more actual topic. Taking into consideration that the area for these crops has increased, ...