Autor: Nemeth, T - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fertilizer recommendations-environmental aspects
Autorzy:: Nemeth, T
Powiązania:: https://bibliotekanauki.pl/articles/797283.pdf
Data publikacji:: 1993
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: nitrogen
fertilization
fertilizer
potassium
environmental aspect
long-term effect
soil chemical process
phosphorus
soil physical process
water balance
Opis:: The author presents the main frame of a recommendation system worked out in RISSAC in the last years. The basis of this system is a description of the main processes in the soils, i.e., water balances, soil physical and chemical processes. The author also presents some data about the environmental effects of intensive land use.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1993, 400
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The role of rock phosphates in sustainable agriculture: the Hungarian experience with Algerian rock phosphate
Autorzy:: Nemeth, T.
Csatho, P.
Osztoics, E.
Powiązania:: https://bibliotekanauki.pl/articles/801085.pdf
Data publikacji:: 1998
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: rock phosphate
sustainable agriculture
Hungary
agriculture
fertilization
nutrient balance
phosphate
soil
plant nutrient
superphosphate
Opis:: From the early 60's till the late 80's, in many countries - among them also in Hungary - agricultural production went through a tremendous development. In Hungary there was a 2-3-fold increase in the average yields of winter wheat, and maize - the two main crops - in comparison to those of the 50's. One of the main factors determining these developments was the increasing use of mineral fertilizers. From the turn of the century till the late 50's, nutrient balances in Hungary were strongly negative: 20 - 30 kg/ha/year less N and K₂O, and 10 kg/ha/year less P₂O₅ was given to the fields in the different forms (farmyard manure, mineral fertilizer and by-products, etc.), than was removed by the harvested yields. Nutrient balances of P became positive in the early 60's, while balances of N and K in the early 70's, resp. Then, for 20 years, N balances were positive by 10 - 20 kg/ha/year, while both P₂O₅ and K₂O balances by 30 - 50 kg/ha/year, resp. These long-term positive nutrient balances resulted in the NPK enrichment of our soils, which was also proven by the national soil test series. During the 80's, for example, the amount of yearly applied mineral fertilizer was 230 - 280 kg/ha N + P₂O₅ + K₂O/arable land. In certain regions N leaching could cause environmental damage, while, as a result of the P-Zn antagonism, on the fields poorly supplied with Zn, overfertilization with P resulted in 1 - 2 t/ha/year maize yield losses. From the early 90's, however, when political and ecological changes took place in the country, the free market was introduced, and state subsidies on mineral fertilizer were withdrawn, there was a sharp decrease in mineral fertilizer use: applied N dropped to 1/5th, P and K to 1/20th of the amount used in the 80's. This dramatic decrease resulted in the change of nutrient balances: in 1991 the balance for N was -60, for P₂O₅ -30, and for K₂O -40 kg/ha for the whole country, resp. In 1992 and 1993 the situation was similar, while in 1994 a slight increase in mineral fertilizer use was observed. According to our estimation, mineral fertilization of 150 kg/ha/year N + P₂O₅ + K₂O is sufficient for long-term sustainable plant nutrition in Hungary, if farmyard manure application and the incorporation of byproducts remains on the recent level. During intensive fertilization practice, emphasis was on the quantity, while crop and soil demands for specific or more economic fertilizers were not taken into consideration. For N, lime ammonium nitrate, for P superphosphate, and for K, potash chloride was used on almost the whole area. As a new attempt to find more economic P sources, Algerian rock phosphate was checked in field trials, set up on characteristic acidic soils in different regions of Hungary, as well as other Central European countries. The first two-year results are discussed in the presentation.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1998, 456
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Impact of soil acidification on heavy metal concentrations in the soil solution
Autorzy:: Csillag, J.
Lukacs, A.
Bujtas, K.
Nemeth, T.
Powiązania:: https://bibliotekanauki.pl/articles/802549.pdf
Data publikacji:: 1998
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: soil acidification
heavy metal concentration
soil solution
soil contamination
toxic metal
agricultural land
soil
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1998, 456
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Nonlinear analysis of vehicle control actuations based on controlled invariant sets
Autorzy:: Németh, B.
Gáspár, P.
Péni, T.
Powiązania:: https://bibliotekanauki.pl/articles/331245.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: vehicle dynamics
sum of squares programming
Lyapunov method
dynamika pojazdu
metoda Lapunowa
analiza nieliniowa
Opis:: In the paper, an analysis method is applied to the lateral stabilization problem of vehicle systems. The aim is to find the largest state-space region in which the lateral stability of the vehicle can be guaranteed by the peak-bounded control input. In the analysis, the nonlinear polynomial sum-of-squares programming method is applied. A practical computation technique is developed to calculate the maximum controlled invariant set of the system. The method calculates the maximum controlled invariant sets of the steering and braking control systems at various velocities and road conditions. Illustration examples show that, depending on the environments, different vehicle dynamic regions can be reached and stabilized by these controllers. The results can be applied to the theoretical basis of their interventions into the vehicle control system.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2016, 26, 1; 31-43
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: A new method for detecting cross-inhibition effects in the environmental biocatalytic processes
Autorzy:: Herke, Z.
Maskow, T.
Nemeth, Z.I.
Powiązania:: https://bibliotekanauki.pl/articles/80851.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biocatalysis
microorganism
enzyme
bioremediation
inhibition
modelling
regression analysis
principal component analysis
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 4
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Radon and thoron parallel measurements in dwellings nearby a closed Hungarian uranium mine
Autorzy:: Németh, C.
Jobbágy, V.
Kávási, N.
Somlai, J.
Kovács, T.
Tokonami, S.
Powiązania:: https://bibliotekanauki.pl/articles/148705.pdf
Data publikacji:: 2010
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: radon
thoron
dwelling
Opis:: Integrated measurements of radon (222Rn) and thoron (220Rn) were executed in a Hungarian village, located in the vicinity of an abandoned uranium mine. The applied passive radon and thoron monitor was the RADUET which is based on a CR-39 track detector. The investigated 35 houses were one storey buildings made of bricks. The rock under the village is a gray-sandstone with an average of 136 and 77 Bqźkg–1 uranium and thorium, respectively. The detectors were mostly placed in the inhabited areas of the houses, such as bedrooms and living-rooms, at a height of 1–1.5 m close to the wall. The measurement periods were between December 2006 and May 2007 and between May 2007 and February 2008. Annual averages of radon concentrations were calculated applying seasonal correction factors to the results of the two measurement periods. The results show that the radon concentrations in the case of considerable part of the investigated dwellings seems to be significantly higher than the Hungarian averages for ground-floor houses (152 Bqźm–3). The thoron concentrations in some cases are also not negligible indicating that radon measurements which are sensitive to thoron can be misleading. Additionally, thoron can also be a contributor of extra dose.
Źródło:: Nukleonika; 2010, 55, 4; 459-462
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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