Browsing by Author "Rotar, Ioan"

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  • Characterization of some grassland from Transilvanian Plateau 
    Toth, Gheorghe; Rotar, Ioan; Păcurar, Florin; Vidican, Roxana; Vaida, Ioana; Pleșa, Anca (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2017)
    Meadows differ from one another depending on static conditions and productivity. The purpose of this research is to assess the state of the biodiversity and pastoral value for grasslands from the Transylvanian Plateau ...
  • Determination of alfalfa crude fiber, NDF, ADF and lignin content by NIR spectrometry 
    Dale, Laura-Monica; Rotar, Ioan; Thewis, Andre; Vidican, Roxana; Florian, Vasile; Ciure, Anamaria (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2012)
    From all forage crops, which together with meadows have a major contribution in ensuring the forage base,, alfalfa crop (Medicago sativa L.) occupies a position of great importance. This plant is distinguished by its ...
  • The effect of low-input upon semi-natural grasslands of Apuseni Mountains 
    Păcurar, Florin; Rotar, Ioan (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    The floristic composition of permanent grasslands is the results of the interaction between all the ecological factors and the controlled conditions. The most significant influence upon the species diversity is owned by ...
  • The effect of technological inputs on a grassland from Apuseni Mountains 
    Bogdan, Anca; Rotar, Ioan; Păcurar, Florin; Dale, Laura-Monica (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    High grassland biodiversity is generally associated with low-input livestock systems that support less than 1 LU per ha. A climatic change, world population growth and uncertainties concerning suplies of fossil energy and ...
  • The evolution of Arnica montana L. grasslands depending on the performed management (Apuseni Mountains, Romania) 
    Rotar, Ioan; Păcurar, F.; Stoie, A.; Gârda, Nicoleta; Dale, Laura-Monica (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2010)
    In Gârda de Sus commune there is unfolding research concerning the influence of the use system upon Arnica montana L. grasslands, more precisely, the manner in which the fertilisation actions are performed and how they ...
  • Impact of fertilizer and treatment recipe on mycorrhizal fungi progress in the root system of Festuca rubra plants 
    Stoian, Vlad; Vidican, Roxana; Rotar, Ioan; Păcurar, Florin (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    Mature ecosystems are characterized by a simultaneous evolution of plants and mycorrhizal type radicular symbionts, extraradicular hyphae produced by mycorrhizal fungi connecting higher plants through interradicular ...
  • The influence of city sludge fertilization upon soil respiration with with alfalfa, at Bolduţ (Cluj county) 
    Vidican, Roxana; Pintea, Iancu; Rotar, Ioan; Păcurar, Florin; Sandor, Valentina (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2012)
    In the context of global climate change and the different scenarios developed in this direction, quantifying soil respiration becomes an issue of major interest for both researchers and farmers. The objective of this study ...
  • The influence of city sludge fertilization upon the symbiotic fixation at alfalfa 
    Vidican, Roxana; Rotar, Ioan; Pintea, Iancu; Păcurar, Florin (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    Neutralization of the city sludge with the help of soil considered a cleaning biological station is one of perspective, the most important upon the environment with the increase of the agricol production. In the new socio ...
  • The influence of mineral and organic long-term fertilization upon the floristic composition of Festuca rubra L.-agrostis capillaris L. grassland in Apuseni mountains, Romania 
    Rotar, Ioan; Păcurar, Florin; Bogdan, Anca; Vidican, Roxana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2012)
    The semi-natural grasslands in Apuseni Mountains are particularly important for the sustainable development of this region. The future development strategies must take into consideration the conservation of grassland plant ...
  • Low mineral fertilization on grassland after 6 years 
    Rotar, Ioan; Păcurar, Florin; Pleșa, Anca; Balázsi, Ágnes (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2015)
    Nowadays, all over the world, the tendency is to maintain biodiversity and prevent the loss of it by replacing intensive management systems with sustainable and beneficial ones. The traditional management degradation due ...
  • The low-input effect upon oligotrophic grasslands in Apuseni Mountains 
    Păcurar, Florin; Rotar, Ioan; Bogdan, Anca; Gârda, Nicoleta (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2010)
    Grassland’s management by low-input might be a viable method for maintaining the high conservative value grassland. Our goal is to study the effect of organic fertilization and mulching upon the phyto-diversity and ...
  • Meadows and management issues in the context of current concept of low-input 
    Rotar, Ioan; Păcurar, Florin; Vidican, Roxana; Bogdan, Anca; Deak, Deneş (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2012)
    The importance of grassland ecosystems exploited in low-input system has been increasingly demonstrated in recent years and changes be they political, economic and / or socially see how it affects not only the ecosystem ...
  • Mycorrhizal networks in a fertilized winter wheat crop 
    Stoian, Vlad; Vidican, Roxana; Rotar, Ioan; Aniței, Mihai (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2015)
    The simultaneous evolution of superior plants with mycorrhizian fungi has created effective and productive symbiotic systems. The enlarged transfer interface between the two partners and the hypal networks increases the ...
  • Oligotrophic grasslands and their context in intensification 
    Rotar, Ioan; Păcurar, Florin; Vidican, Roxana; Pleșa, Anca (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    The concept of sustainability applied to agriculture developed mainly as a result of growing awareness of negative impacts of intensive farming systems on the environment and the quality of life of rural and neighboring ...
  • The organic fertilization and mulching from bear meadows 
    Rotar, Ioan; Păcurar, Florin; Bogdan, Anca; Vidican, Roxana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    The organic fertilization could be a realistic management method of the grasslands while a strong decrease of animal number takes place in Romania. The combined and long term effect of organic fertilizers upon the dry ...
  • The organic-mineral fertilization of a Festuca rubra L. Grassland for eight years 
    Păcurar, Florin; Rotar, Ioan; Gârda, Nicoleta; Morea, Adriana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2010)
    The organic-mineral fertilization could be a realistic method of management of the grasslands while a strong decreasing of animals number takes place in Romania. On the grasslands in Apuseni Mountains, this type is not ...
  • Oscillation induced by agricultural inputs in microbial communities formed in soybean rhizosphere 
    Vidican, Roxana; Stoian, Vlad; Rotar, Ioan; Păcurar, Florin; Sfechiș, Susana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2016)
    Rhizosphere is the area with the most intense microbial activity, under the direct influence of plant species and soil type. Changes in activity and functional diversity of microorganisms can represent powerful parameters ...
  • Pure species of grass discrimination with the help of hyperspectral imaging NIR 
    Dale, Laura-Monica; Rotar, Ioan; Bogdan, Anca; Păcurar, Florin; Thewis, Andre; Fernández Pierna, Juan; Kayoka Mukendi, Nicaise; Beaten, Vincent (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2011)
    The possibilities to discriminate with hyperspectral imaging system, SWIR ImSpector N25E in grass mixtures of the pure species Festuca rubra L., Trifolium repens L., Agrostis capillaris L., Hieracium aurantiacum L., Arnica ...
  • Salinity effect on the growth of rhizobia in vitro 
    Niste, Monica; Vidican, Roxana; Rotar, Ioan; Miclea, Raluca; Pop, Rodica (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2015)
    This study aimed to isolate and collect different strains from soil and to characterize their performance against salinity. Two strains Rhizobium leguminosarum bv. trifolii and two Sinorhizobium meliloti strains were used ...
  • The semi-natural grasslands in different successional stages of abandonment 
    Pleșa, Anca; Rotar, Ioan; Păcurar, Florin; Vidican, Roxana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2014)
    All over in the world is known that abandonment shows a heavy impact on grasslands biodiversity. It is important to realize that abandonment has gone and still go with the disappearance of low input traditional farms. ...