Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Barczak, T." wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 23
Tytuł:
Wstępne badania składu aminokwasowego białka ziarna orkiszu nawożonego azotem i mikroelementami
Initial research on amino acid composition of spelt grain protein fertilized with nitrogen and microelements
Autorzy:
Nowak, K.
Spychaj-Fabisiak, E.
Barczak, B.
Knapowski, T.
Kozera, W.
Powiązania:
https://bibliotekanauki.pl/articles/2073161.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
orkisz
białko
aminokwasy
nawożenie azotem
nawożenie mikroelementami
spelt
protein
amino acids
nitrogen fertilization
fertilization with microelements
Opis:
Materiał do badań stanowiło ziarno orkiszu ozimego zebranego ze ścisłego dwuczynnikowego doświadczenia polowego. Czynnikiem I. rzędu było nawożenie azotem, a czynnik II. rzędu stanowiło nawożenie mikroelementami. Badania wykazały, że skład aminokwasowy białka ziarna orkiszu zmieniał się pod wpływem badanych czynników nawozowych - zwłaszcza azotu. Zastosowane mikroelementy: miedź, mangan i cynk, nie wpływały istotnie na skład aminokwasowy białka ziarna orkiszu.
Material for the study comprised grain of winter spelt harvested in a strict two-factorial field experiment. A first order factor was the fertilization with nitrogen and the second order factor was fertilization with microelements. The study indicated that amino acid composition of spelt grain protein changed under the influence of studied fertilization factors - especially nitrogen. The applied microelements: copper, manganese and zinc, did not affect significantly amino acid composition of spelt grain protein.
Źródło:
Inżynieria i Aparatura Chemiczna; 2015, 5; 265--266
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wplyw wyciagow z roslin z rodziny rdestowatych na mszyce burakowa [Aphis fabae Scop.] i jej parazytoidy
Autorzy:
Barczak, T
Powiązania:
https://bibliotekanauki.pl/articles/803374.pdf
Data publikacji:
1994
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
zwalczanie szkodnikow
mszyca trzmielinowo-burakowa
rdestowate
szkodniki roslin
wyciagi roslinne
Aphididae
Polygonaceae
Aphis fabae
mszycowate
mszyce
Opis:
Celem badań było określenie wpływu wyciągów z roślin z rodziny rdestowatych (Polygonaceae) na mszycę burakową (Aphis fabae Scop.) i jej parazytoidy (Hymenoptera: Parasitica). Napary z rdestów: wężownika, powojowego i plamistego powodowały stopniowy spadek liczebności mszyc na jaśminie wonnym, chociaż skuteczność tych wyciągów jako aficydów była w warunkach laboratoryjch niska. Opryskiwanie kolonii mszyc w laboratorium powodowało obniżanie liczebności i liczby wylęgających się z nich parazytoidów pierwotnych.
The aim of the investigations was to determine the influence of water extracts from six Polygonaceae plant species on black bean aphid colonies and on aphid parasitoids (Hymenoptera: Parasitica). Water extracts from Polygonum bistorta L., P. convolvulus L. and P. persicaria L., caused a gradual decrease of black bean aphid colony abundance on mockorange plant, though the efficiency of those extracts used as aphicides was relatively low in laboratory conditions (max. 66%, according to Henderson-Tilton test). Spraying of parts of aphid infested plants seemed to decrease the abundance and number of primary parasitoid species emerging from aphids in the laboratory. Only three primary parasitoid species, Praon abjectum Hal. and Trioxys angelicae Hal. (Aphidiidae) and Aphelinus chaonia Wlk., and six hyperparasitoid species from the Pteromalidae and Charipidae-Alloxystinae families were determined.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1994, 414; 245-252
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traffic control algorithms in computer networks. Part 2, Simulation researches of the algorithms
Autorzy:
Barczak, A.
Sitkiewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/93004.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
traffic control algorithms
computer networks
traffic simulation in networks
Opis:
This article is the continuation of the first part entitled Review of algorithms. In the article presented were the author's simulator of a network and the tests performed with its help. In the first part the concept and functionality of the created simulator were described. The concept emerged on the basis of an analysis of existing solutions, as well as needs the created software has to fulfill. The second part of the article depicts the testing environment, i.e. network topology and simulation parameters used during the research. What is more, in the aforementioned part, provided was the comparison of the research run with the use of the author's software and its interpretation.
Źródło:
Studia Informatica : systems and information technology; 2009, 2(13); 5-19
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The New Sensing Fibre for Application in Optical Fibre Current Sensor
Autorzy:
Barczak, K.
Pustelny, T.
Dorosz, D.
Dorosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/1811528.pdf
Data publikacji:
2008-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.20.Ls
42.81.Gs
42.81.Pa
42.81.Qb
Opis:
The present paper deals with investigations concerning optical fibre current sensors. They are mainly applied in measurements of the intensity of the electric current in the power lines as so-called optical transformers of the electrical current. The most important advantages of fibre current sensors are: safety of service, insulating power as well as their insensitiveness to electromagnetic interference. The investigations were concentrated on designing of adequate sensing fibre, and particularly on the choice of an adequate kind of glass, of which this fibre could be made. Besides, also the head of the fibre current sensor was designed, basing on the suggested and produced sensing fibre. The paper presents the results of magneto-optic tests of the glass and the sensing fibre.
Źródło:
Acta Physica Polonica A; 2008, 114, 6A; A-3-A-6
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of vegetation in apple orchard edges on the phenology of parasitoids from the subfamily Pimplinae (Hymenoptera, Ichneumonidae)
Autorzy:
Piekarska-Boniecka, H.
Zyprych-Walczak, J.
Siatkowski, I.
Barczak, T.
Powiązania:
https://bibliotekanauki.pl/articles/12694131.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 5; 129-142
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sulphur as a factor influencing the content of nitrogen compounds in seeds of narrow-leafed lupin
Autorzy:
Barczak, B.
Barczak, T.
Powiązania:
https://bibliotekanauki.pl/articles/1192795.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
Amino acids
Lupinus angustifolius L.
nitrates
protein
sulphur
Opis:
In view of the predicted increase in sulphur deficiency in crop production, a study was undertaken to assess the effect of fertilization with this nutrient on criteria determining the biological value of narrow-leafed lupin seeds (total and true protein, their ratio, nitrates and amino acid composition). The study was based on a three-year, three-factor field experiment, in which the Elf cultivar of narrow-leafed lupin (Lupine Angustifolius L.) was grown on light soil with low sulphur content. The experiment included foliar and soil application of sulphur and its elemental and ionic forms. The application doses were 0, 20, 40 and 60 kg S ha-1. In all years of the study, the sulphur application dose was found to significantly determine the total and true protein content as well as their ratios in the lupin seeds. Application of just 20 kg S ha-1 caused a significant increase in true protein in the lupin seeds and in the proportion of true protein in the total protein, as compared to the control. The CS index for all the essential amino acids showed that the first limiting amino acid in the lupin seed protein was sulphur-containing methionine. As the dose of applied sulphur increased, there was an overall increase in CSmeth. and EAAI. Given the positive effect of sulphur, particularly in the elemental form, on the protein content and amino acid composition of lupin seeds and in reducing the content of harmful nitrates, the use of this nutrient in fertilization of this species is recommended.
Źródło:
Journal of Elementology; 2021, 26, 1; 137-147
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skład frakcyjny białka dojrzewającego ziarna jęczmienia ozimego uprawianego w warunkach intensywnego nawożenia azotem
Protein fractional composition in ripening grains of winter barley cultivated under intense fertilization with nitrogen
Autorzy:
Barczak, B.
Knapowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/47024.pdf
Data publikacji:
2008
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
bialko
dawki nawozowe
dojrzewanie
fazy dojrzalosci biologicznej
jeczmien ozimy
nawozenie azotem
nawozenie intensywne
sklad frakcyjny
uprawa roslin
ziarno
biological maturity phase
fertilizer dose
fractional composition
grain
intensive fertilization
maturation
nitrogen fertilization
plant cultivation
protein
winter barley
Opis:
Przedmiotem badań było ziarno jęczmienia ozimego zbieranego w początkowej fazie jego zawiązywania, dojrzałości mlecznej, woskowej i pełnej przy stosowaniu nawożenia azotem w dawkach 0, 60, 120 i 180 kg N·ha-1. Doświadczenie przeprowadzono w Stacji Badawczej w Wierzchucinku (53o26’ N; 17o79’ E), należącej do Uniwersytetu Technologiczno-Przyrodniczego w Bydgoszczy. Podczas wypełniania ziarna jęczmienia ozimego odmiany Paweł udział wszystkich badanych frakcji w białku ogólnym na ogół zwiększał się. W największym stopniu dotyczyło to prolamin; różnica ich zawartości między fazami A i D wynosiła średnio dla trzech lat badań 207,7%. W białku dojrzewającego ziarna jęczmienia ozimego we wszystkich badanych fazach rozwoju ziarna pod wpływem nawożenia azotem wzrastał znacząco udział białek zapasowych, to jest prolamin i glutelin (o 15,7 %), przy jednoczesnym obniżeniu zawartości albumin i globulin (o 18,2%). Największy wpływ dawek azotu na kształtowanie składu frakcyjnego białka obserwowano w fazie dojrzałości pełnej. Zmiany proporcji ilościowych między frakcjami białkowymi, zachodzące podczas ontogenezy ziarna jęczmienia ozimego pod wpływem działania intensywnego nawożenia azotem, mogą sugerować pewne obniżenie wartości odżywczej białka.
The object of the study was the grain of winter barley harvested at the beginning of its setting, milk maturity, dough maturity and full grain maturity stages at nitrogen fertilization doses of 0, 60, 120 and 180 kg N.ha-1. The experiment was carried out at the Research Station in Wierzchucinek (53o26’ N; 17o79’ E) owned by the University of Technology and Life Sciences, Bydgoszcz. The results of the research revealed that the contents of all the tested individual fractions in total protein generally increased during the filling of the winter barley grain. It mostly concerned prolamins, for which the difference in the contents between stage A and stage D was on average 207.7% for three years of the research. A fraction of spare proteins, i.e. prolamins and glutelins, increased significantly (by 15.7%), whereas the content of albumins and globulins decreased in the protein of ripening grain of winter barley (by 18.2%) in all the tested stages of grain growth under the effect of nitrogen fertilization (0-180 kg N·ha-1). The highest effect of nitrogen doses on the protein fractional composition was observed in the phase of full grain maturity. Quantitative variations in proportions between protein fractions during the ontogenesis of the winter barley grain in relation to the intense nitrogen fertilization may suggest some decline in nutritional value of the protein.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2008, 07, 2
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Single Mode High Refractive Index Optical Fibres
Autorzy:
Dorosz, D.
Barczak, K.
Pustelny, T.
Dorosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/1811520.pdf
Data publikacji:
2008-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.81.Pa
42.81.-i
42.81.Qb
Opis:
The present paper is focussed on the search of technology of new kinds of optical fibers characterised by good magnetooptical properties. The elaborated optical fibres are to apply in optical sensors of electric current and the magnetic field. In result of these researches and analyses a new optical fibre was put forward. Such optical fibers were designed, produced and subjected to extensive tests. This paper presents the results of investigations that were carried out as well as the parameters of the tested structures.
Źródło:
Acta Physica Polonica A; 2008, 114, 6A; A-63-A-68
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sezonowa dynamika liczebności chrząszczy z rodziny Ciidae w różnych typach siedlisk leśnych
Autorzy:
Lik, M.
Barczak, T.
Powiązania:
https://bibliotekanauki.pl/articles/1022027.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zasiedlanie
siedliska lesne
owady
Fomes fomentarius
entomologia lesna
chrzaszcze
lesnictwo
dynamika liczebnosci
hubiak pospolity
sezonowosc
Ciidae
liczebnosc
ciidae beetles
abundance
colonization
seasonal dynamics
fruiting bodies
fomes fomentarius
forest habitat type
Opis:
The presented studies concerned seasonal changes in abundance and index of settlement (number of specimens per 100 g of tinder fungus) of beetles from the Ciidae family (Col.) colonising the fruiting bodies of tinder polypore Fomes fomentarius depending on the degree of decomposition of the fruiting body and forest habitat type where the fungus occurs.
Źródło:
Sylwan; 2005, 149, 10; 54-60
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review of traffic control algorithms in computer networks
Autorzy:
Barczak, A.
Sitkiewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/92855.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
traffic control algorithms
computer networks
traffic control in computer networks
Opis:
This paper presents comparison of popular traffic control algorithms in computer networks. It also contains descriptions of functioning of these algorithms. The first part of this paper contains description of evaluation criteria of traffic control algorithms (from system and user viewpoint). The second part of article contains description of new algorithms, which are theoretically improved or brand new, just introduced for practical use. These algorithms are developmental and eliminate disadvantages of already existing algorithms. The third part of this paper contains description of classical algorithms, which are well known, described and researched. It contains also propositions of modifications of classical linear programming algorithms. These modifications are for adjusting these algorithms to described problem.
Źródło:
Studia Informatica : systems and information technology; 2008, 2(11); 15-26
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of the yield and mineral composition of garden thyme (Thymus vulgaris L.) herbage to various NPK proportions
Autorzy:
Kozera, W.
Majcherczak, E.
Barczak, B.
Knapowski, T.
Wszelaczynska, E.
Poberezny, J.
Powiązania:
https://bibliotekanauki.pl/articles/15323.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
herbal plant
plant response
yield
mineral composition
garden thyme
thyme
Thymus vulgaris
plant fertilization
NPK fertilization
NPK proportion
nitrogen
phosphorus
potassium
macronutrient
Opis:
Garden thyme is a very important essential herbal plant grown in Poland. As well as being able to regulate digestion processes, thyme herbage possesses disinfecting, expectorant, antioxidant, spasmolytic properties. Research has been launched to define the effect of NPK fertilisation on yielding, the content of essential oil as well as the mineral composition of garden thyme (Thymus vulgaris L.) herbage. The experimental factor consisted of NPK mineral fertilisation applied into soil at the following doses per hectare and proportions: A0 – without mineral fertilisation, A1 – 30 kg N + 22 kg P + 100 kg K (N:P:K was: 1:0.75:3.33), A2 – 60 kg N (30 kg N + 30 kg N) + 22 kg P + 100 kg K (1:0.37:1.67), A3 – 90 kg N (45 kg N + 45 kg N) + 22 kg P + 100 kg K (1:0.24:1.11). The experiment comprised 4 fertilisation objects with 4 replications, and the sowing area and the harvest area of 3 m2 plot-1. Nitrogen was applied in the form of ammonium nitrate twice: pre-sowing as well as after plant emergence. Phosphorus and potassium were used pre-sowing, in the form of triple superphosphate 40% and 60% of potassium salt, respectively. The doses of 152 kg NPK ha-1 (1:0.75:3.33) – A1 and 182 kg NPK ha-1 (1:0.37:1.67) - A2 showed the most favourable effect on the yield of fresh weight, air-dried weight and essential oil of herbage as well as the quality characteristics of the yields. The dose of 152 kg NPK ha-1 (A1), including 30 kg less nitrogen, was as favourable as that of 182 kg NPK ha-1 in terms of the content of air-dry weight of herbage, essential oil as well as mineral nutrients. Its application also resulted in a similar yield of essential oil. The application of 212 kg NPK ha-1 (1:0.24:1.11) was economically unjustified since, in general, it decreased the size of the yield of fresh weight of herbage and the values of its parameters studied.
Źródło:
Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of coriander to fertilization with nitrogen and boron
Autorzy:
Kozera, W.
Spychaj-Fabisiak, E.
Majcherczak, E.
Barczak, B.
Knapowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/15338.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2019, 24, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Respone of spring barley to NPK and S fertilisation: yielding, the content of protein and the accumulation of mineral nutrients
Autorzy:
Kozera, W.
Barczak, B.
Knapowski, T.
Brudnicki, A.
Wichrowska, D.
Powiązania:
https://bibliotekanauki.pl/articles/961392.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Barley is a cereal of great importance in the crop structure both in Europe and globally. The nutritional value of barley grain is largely shaped by agronomic factors, in particular by fertilisation, which can have a significant impact on the content of individual elements and their quantitative interrelations in grain. The aim of the research was to evaluate yielding, the content of protein and the accumulation of mineral nutrients by the grain of spring barley grown exposed to varied NPK and S fertilisation. The study was based on a three-factor field experiment in a randomised split-plot design with 3 replications. The 1st order factor (A) was fertilisation with nitrogen (n = 3): N1 – 40 kg ha-1, N2 – 80 kg ha-1, N3 – 120 kg ha-1. The 2nd order factor (B) was fertilisation with phosphorus and potassium (n = 2): P1 K1 – 30 kg P ha-1, 80 kg K ha-1; P2K2 – 45 kg P ha-1, 120 kg K ha-1. The 3rd order factor (C) was fertilisation with sulphur (n = 2): S0 – 0 kg ha-1 and S1 – 23 kg ha-1. The study showed that the application of 80 and 120 kg N ha-1 resulted in obtaining a significantly higher grain yield of spring barley and, usually, a higher grain protein content than did the application of 40 kg N ha-1. The increase in yield effected by sulphur fertilisation was significant in relation to the objects without sulphur fertilisation. The highest accumulation of nitrogen, phosphorus, potassium and magnesium was found following fertilisation with a dose of 80 kg N ha-1, as compared with the accumulation with grain from the experimental variant with the application of 40 kg N ha-1. As a result of sulphur application, considerably more nitrogen, phosphorus and potassium was obtained in the grain yield. Sulphur applied in combination with a dose of 120 kg N ha-1 usually caused a significant decrease in the accumulation of the tested macroelements.
Źródło:
Journal of Elementology; 2017, 22, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Respone of spring barley to NPK and S fertilisation: yielding, the content of protein and the accumulation of mineral nutrients
Autorzy:
Kozera, W.
Barczak, B.
Knapowski, T.
Brudnicki, A.
Wichrowska, D.
Powiązania:
https://bibliotekanauki.pl/articles/1190223.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
mineral nutrition
yield of grain
protein content
accumulation
macroelements
Opis:
Barley is a cereal of great importance in the crop structure both in Europe and globally. The nutritional value of barley grain is largely shaped by agronomic factors, in particular by fertilisation, which can have a significant impact on the content of individual elements and their quantitative interrelations in grain. The aim of the research was to evaluate yielding, the content of protein and the accumulation of mineral nutrients by the grain of spring barley grown exposed to varied NPK and S fertilisation. The study was based on a three-factor field experiment in a randomised split-plot design with 3 replications. The 1st order factor (A) was fertilisation with nitrogen (n = 3): N1 – 40 kg ha-1, N2 – 80 kg ha-1, N3 – 120 kg ha-1. The 2nd order factor (B) was fertilisation with phosphorus and potassium (n = 2): P1 K1 – 30 kg P ha-1, 80 kg K ha-1; P2K2 – 45 kg P ha-1, 120 kg K ha-1. The 3rd order factor (C) was fertilisation with sulphur (n = 2): S0 – 0 kg ha-1 and S1 – 23 kg ha-1. The study showed that the application of 80 and 120 kg N ha-1 resulted in obtaining a significantly higher grain yield of spring barley and, usually, a higher grain protein content than did the application of 40 kg N ha-1. The increase in yield effected by sulphur fertilisation was significant in relation to the objects without sulphur fertilisation. The highest accumulation of nitrogen, phosphorus, potassium and magnesium was found following fertilisation with a dose of 80 kg N ha-1, as compared with the accumulation with grain from the experimental variant with the application of 40 kg N ha-1. As a result of sulphur application, considerably more nitrogen, phosphorus and potassium was obtained in the grain yield. Sulphur applied in combination with a dose of 120 kg N ha-1 usually caused a significant decrease in the accumulation of the tested macroelements.
Źródło:
Journal of Elementology; 2017, 22, 2; 725-736
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proportions of nitrogen and sulphur in spring rapeseeds depending on fertilization with these elements
Autorzy:
Barczak, B.
Barczak, T.
Skinder, Z.
Piotrowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1192495.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
Brassica napus L.
content of nitrogen and sulphur in seeds
N:S ratio
methods of sulphur application
Opis:
The study was based on a three-year field experiment conducted on degraded black soil, classified as class IIIb soil in the Polish soil valuation system, with neutral pH, high content of phosphorus and potassium, average content of magnesium, and low content of sulphur. The two-factor experiment was carried out in northern Poland (52°73′ N; 18°88′ E), in a split-block design with four replications. The preceding crop each year was sugar beet. The aim of the study was to evaluate the effect of varied levels of nitrogen (first factor – 0, 60, 120 and 180 kg ha-1) and sulphur (second factor – 0, 20 and 60 kg ha-1) applied to the soil and onto the leaves on the content and ratio of these elements in the seeds of the Star cultivar of spring rapeseed. Little variation was noted between growing seasons in the content of nitrogen and sulphur and in their proportions in the seeds. Application of nitrogen alone (without sulphur) and combined application of nitrogen with sulphur caused an increase in the nitrogen content in the seeds and in the N:S ratio. The sulphur content in the seeds of the plants fertilized with nitrogen and sulphur together was significantly higher than in the seeds of the plants fertilized with nitrogen alone and lower than in the plants fertilized with sulphur alone. The highest N:S ratios were obtained in the seeds of plants fertilized with nitrogen alone, and the lowest – following the application of sulphur alone. Application of nitrogen or nitrogen and sulphur caused an increase in the N:S ratio towards optimal values for fodder crops. The method of sulphur application did not significantly affect its content in the rapeseeds or the N:S ratio.
Źródło:
Journal of Elementology; 2020, 25, 4; 1385-1398
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies