Use this url to cite researcher: https://hdl.handle.net/20.500.12259/153098
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  • Publication
    Kalkinės trąšos
    journal article
    Chemijos enciklopedija. Vilnius: Mokslo ir enciklopedijų leidybos institutas, 2015, p. 336
      28
  • Publication
    Karbamidas
    journal article
    Chemijos enciklopedija. Vilnius: Mokslo ir enciklopedijų leidybos institutas, 2015, p. 339-340
      37
  • Publication
    Kompostas
    journal article
    Chemijos enciklopedija. Vilnius: Mokslo ir enciklopedijų leidybos institutas, 2015, p. 367
      40
  • Publication
    Organinės trąšos
    journal article
    Chemijos enciklopedija. Vilnius: Mokslo ir enciklopedijų leidybos institutas, 2015, p. 509
      32
  • Publication
    Kalio chloridas
    journal article
    Chemijos enciklopedija. Vilnius: Mokslo ir enciklopedijų leidybos institutas, 2015, p. 331
      33
  • Publication
    Kalcio nitratas
    journal article
    Chemijos enciklopedija. Vilnius: Mokslo ir enciklopedijų leidybos institutas, 2015, p. 329
      31
  • conference paper ; ;
    19-th Baltic agronomy forum : book of abstracts. Kėdainiai : Spaudvita, 2013, p. 40
    As comparing the influence of the applied fertilization system on the quantity of valuable soil constructive aggregates it could be noticed that, it was higher along the organic fertilization system (39.6-40.1 percent), thus, to the lower extent - along the organic-mineral (35.8 percent) and the mineral (37.1-37.6 percent) fertilization systems. The quantity of the stable aggregates was increasing along the increase in the content of organic carbon and the aeration porosity, but along there were decreasing the soil bulk density. Average data on the carbon pools in arable layer significantly differed (p<0.05) in the organic, organic-mineral and mineral fertilization systems. The C pools were in higher extent in arable layer when the crop plants were fertilised with the larger amount of manure or fertilisation with manure was combined with the mineral fertilisers once per crop rotation. However, the C pools in soil differed not significantly in plots where the fertilisation with the lowest rate of mineral fertilisers once per crop rotation was performed. The present study has confirmed that, the long-term fertilisation with organic and the combined use of the fertilisers as well as the crop plants in the rotation increased humus content in arable layer of soil. In all agrosystems the productivity of crops depended on intensity of fertilization, soil physical and chemical properties. The correlation regression analyses showed that crop productivity depends not only on amount of available phosphorus and potassium, or soil density, structure aggregates and porosity, but also other factors.
      29
  • Publication
    Žieminių kviečių derliaus priklausomumas nuo tręšimo sistemų lengvo priemolio išplautžemyje
    [Dependence of winter wheat productivity on fertilization systems in a light sandy loam Luvisols]
    research article ; ;
    Žemės ūkio mokslai. , 2009, T. 16, Nr. 1-2, p. 14-22
    In order to choose fertilization systems for a crop rotation productivity, it is important to sum up the factors that determine not only the plant productivity, but also the soil potential. The aim of this paper is to determine the effect of different fertilization systems and meteorological conditions, evaluated by the hydrothermal coefficient (HTC) on winter wheat productivity in a 4-year crop rotation. Since 1966, long-term fertilization trials have been carried out at the experimental station of the Lithuanian University of Agriculture on light sandy loam over moraine clay Calc(ar)i-Epihypogleyic Luvisols. In a 4-year crop rotation, winter wheat, beetroot, spring barley with perennial grass were cultivated. Organic fertilizers (farming manure, 50 and 100 t ha–1) were applied once per rotation to beetroot, and the annual average was 12.5 and 25 t ha–1 dung per shift of crops. In the system of mineral fertilization, N30P40K60, N100P60K60 fertilizer rates were used, and in the organic-mineral fertilization a combination of manure (50 t ha–1) with a mineral fertilizer (N30P40K60) was applied. The data obtained from ten rotations show that the yield of winter wheat reached 3.3 t ha–1 in the unfertilized treatment. In the organic fertilization system, the productivity of winter wheat crop depended on the quantity of farming manure. The crop increased by 0.69 t ha–1, or 21%, and 1.05 t ha–1, or 32%, after applting respectively 50 and 100 t ha–1 of manure as compared with the initial level. A comparison with the initial level has shown that the least rates of mineral fertilizer (N30P40K60) increased the productivity by 1.13 t ha–1 and the medium rates (N100P60K60) by 1.38 t ha–1. The organic- mineral fertilization system did not show any advantage over the mineral one, because it had no significant influence on crop addition.
      32
  • conference paper ; ;
    Jaunimas siekia pažangos : doktorantų mokslinės konferencijos straipsnių rinkinys. Akademija (Kauno r.) : LŽŪU Leidybos centras, 2009, Nr. 3, p. 79-82
    The effect of different fertilizing systems (mineral, organic-mineral and organic) on the agrophysical properties of soil carried out on the long-1 term fertilization trials in the Experimental Station of the Lithuanian University of Agriculture on light sandy loam over moraine clay Calcfarfr Epihypogleyic Luvkols. In the 4-year crop rotation was cultivated: winter wheat, beetroot, spring barley with perennial grass. Organic fertilizers (farming manure 58 and 100 t ha') were applied once per rotation for beetroot and annually average was 12.5 and 25 t ha"1 dung per shift of crops. In the system of mineral I fertilization N2!PuK6o, NMPWK*,] fertilizers rates were used and in the organic-mineral fertilization the combination of manure (50 t ha"') with the mineral fertilizer (NHP^KHO) was applied. The soil samples of physical properties determined in the 5-30 cm depth after cropping Average data obtained from 2006-2008 years show that applied fertilizations systems did not worsen the agrophysical properties of soil Ii was found that soil bulk density was close to the optimum (1.38-1.42) for that type of soil in the mineral, organic-mineral and organic fertilization systems The total soil porosity varied from 43,1 till 47,0 %, air-filled soil porosity mediated 18.3-20.1 %, respectively soil moisture content- 18 3-20.1 units, but had no significant effect versus unfertilized treatment. The date mean revealed that the amount of soil and water-stable aggregates make low-level difference between fertilization system, by applying lower fertilizers norms (N2jPj7K«i) in mineral fertilization system show up tendency to decline theirs amount.
      55
  • conference paper
    Žemdirbio vasara 2008 [CD-R] :prioritetiniai lauko augalai: plėtros perspektyvos ir agrotechnikos aspektai kintančio klimato sąlygomis: mokslinė-praktinė konferencija ir šiuolaikinių augalininkystės technologijų apžiūra. [Akademija], 2008, p. htm
      27