Wszystkie pola: nitrogen efficiency - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Increasing nitrogen use efficiency with lower nitrogen application frequencies using zeolite in rice paddy fields
Autorzy:: Wu, Q.
Chen, T.
Chi, D.
Xia, G.
Sun, Y.
Song, Y.
Powiązania:: https://bibliotekanauki.pl/articles/2082479.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: available nitrogen
nitrogen uptake
root system
labour force
Opis:: Zeolite can effectively regulate the nutrient status in the root zone of crops, thereby increasing nitrogen utilization. However, there has been relatively little research conducted concerning a possible reduction in the frequency of nitrogen application due to the sustained-release properties of zeolite. In this study, 157.5 kg ha-1 nitrogen in the form of urea fertilizer was applied at the same rate, either as a one-time application or as a 3-way split application with and without 10 t ha-1 zeolite. The effects on rice yield, nitrogen uptake, root morphology and soil properties were evaluated in 2014 and 2015. Results showed that zeolite could enhance the biomass, leaf area index and nitrogen uptake. A higher rice grain yield and nitrogen uptake following soil treatment with zeolite could be attributed to a higher soil cation exchange capacity as well as nitrogen and potassium availability in the soil especially during the vegetative period of the rice plant. The addition of nitrogen to the soil as a one-time application or 3-way split application with 10 t ha-1 zeolite significantly increased rice grain yield by 8.5 or 10.7% compared with nitrogen as a one-time application without zeolite. Zeolite addition greatly improved the development of root morphology and activity compared with treatments without zeolite, which contributed to additional plant growth. The addition of nitrogen to the soil with 10 t ha-1 zeolite as a one-time application that can significantly increase nutrient retention is recommended to improve rice grain yield and decrease nitrogen application frequencies in order to lower both labour forces and energy requirements.
Źródło:: International Agrophysics; 2019, 33, 2; 263-269
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of formulation of phosphorus fertilizer on nitrogen uptake and its efficiency under maize grain cropping
Wpływ formy nawozu fosforowego na pobranie i efektywność azotu w uprawie kukurydzy na ziarno
Autorzy:: Potarzycki, J.
Powiązania:: https://bibliotekanauki.pl/articles/47401.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:: phosphorus
phosphorus fertilization
nitrogen uptake
nitrogen efficiency
maize
grain crop
superphosphate
nitrogen content
Opis:: The aim of the paper was to evaluate the efficiency of nitrogen from ammonium saltpeter as related to the formulation of phosphorus fertilizer under maize grain cropping. Maize was grown in monoculture throughout the consecutive years 2003- -2007. A two factorial field experiment was established at a farm located in Nowa Wieś Królewska (52o26’ N; 17o57’ E) on a slightly acidic soil, moderately rich in phosphorus. Experimental factors were as follows: (i) chemical formulation of the fertilizer, (partially acidulated phosphate rock – PAPR, simple superphosphate – SSP and triple superphosphate – TSP), (ii) nitrogen rate: 80 and 140 kg N·ha-1; a phosphorus unfertilized treatment was also considered. The type of phosphorus fertilizer did not differentiate nitrogen uptake, but the lack of phosphorus at the applied rate has induced a decrease in nitrogen accumulation in the aboveground biomass, on average by 8%. Phosphorus fertilization at the rate 26.4 kg P·ha-1 was the main determinant of nitrogen uptake by the kernels. Nitrogen recovery (R) from the fertilizers as well as its agronomical (AE) and physiological (PE) efficiency were significantly lower in treatments where phosphorus was not applied. Furthermore, it was found a positive effect of sulphur from simple superphosphate on the AE after the application of 80 kg N·ha-1. The R values did not depend on the chemical formulation of phosphorus in the fertilizer and amounted on average to 74 and 59% for the rates 80 and 140 kg N·ha-1, respectively, whereas for the treatment without P, these values varied within the range 46-54%.
Celem pracy była ocena efektywności azotu z saletry amonowej w zależności od formy nawozu fosforowego w uprawie kukurydzy przeznaczonej na ziarno. Kukurydzę uprawiano w latach 2003-2007 w monokulturze. Dwuczynnikowe doświadczenie założono w gospodarstwie zlokalizowanym w Nowej Wsi Królewskiej (52o26’ N; 17o57’ E), na glebie lekko kwaśnej, średnio zasobnej w przyswajalny fosfor. Czynniki doświadczalne: (i) formulacja chemiczna nawozu (częściowo rozłożony fosforyt – PAPR, superfosfat prosty – SSP oraz superfosfat potrójny – TSP), (ii) dawka azotu (80 i 140 kg N·ha-1); analizowano także wariant bez nawożenia fosforem. Forma nawozu fosforowego nie różnicowała pobrania azotu, natomiast brak fosforu w dawce nawozowej prowadził do zmniejszenia akumulacji azotu w biomasie nadziemnej średnio o 8%. Nawożenie fosforem w dawce 26,4 kg P·ha-1 determinowało pobranie azotu przez ziarniaki. Wykorzystanie azotu z nawozów (W) oraz efektywność agronomiczna (EA) i fizjologiczna (EF) tego składnika były istotnie mniejsze w warunkach braku nawożenia fosforem. Potwierdzono dodatnie działanie siarki z superfosfatu prostego na EA po zastosowaniu 80 kg N·ha-1. Wartości W nie zależały od formulacji chemicznej fosforu w nawozie i wynosiły średnio 74 i 59% odpowiednio dla dawek 80 i 140 kg N·ha-1, a na kontroli (bez P) wahały się w granicach 46-54%.
Źródło:: Acta Scientiarum Polonorum. Agricultura; 2009, 08, 3
1644-0625
Pojawia się w:: Acta Scientiarum Polonorum. Agricultura
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Productivity, nitrogen use efficiency and water use efficiency of maize for grain in long term field experiments
Autorzy:: Rutkowska, Agnieszka
Powiązania:: https://bibliotekanauki.pl/articles/2148504.pdf
Data publikacji:: 2019-06-30
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:: Zea mays
nitrogen rates
Nitrogen Use Efficiency (NUE)
Water Use Efficiency (WUE)
nitrogen surplus
Opis:: 11Abstract. Maize, one of the most important cereals species grown in Poland, use large quantities of nitrogen, but water defi-cit through the vegetation period might lead to yield reduction and diminish nitrogen uptake. The aim of the study was to char-acterize the productivity of the crop, depending on its nitrogen and water use efficiency. In two locations, in Western and Eastern Poland, eleven-year field experiments with maize grown for grain were conducted. Maize was fertilized with increasing rates of ni-trogen: 50, 100, 150, 200 i 250 kg N ha-1. It was found, that grain yields of maize raised statistically significant up to 8.03 tha-1 under 150 kg Nha-1. Such a dose guaranteed: nitrogen uptake 182 kg Nha-1, nitrogen use efficiency 121%, nitrogen surplus -32 kg Nha-1, water use efficiency 14.5 kgha-1 mm-1, and nitro-gen utilization efficiency 43 kgkg-1. Increasing nitrogen doses over the years was not justified because maize productivity was limited by water availability under higher nitrogen rates.
Źródło:: Polish Journal of Agronomy; 2019, 37; 11-15
2081-2787
Pojawia się w:: Polish Journal of Agronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Badania efektywności usuwania azotu amonowego na wybranych materiałach sorbcyjnych
Study on ammonia nitrogen removal efficiency on selected sorbents
Autorzy:: Piaskowski, K.
Nowak, R.
Powiązania:: https://bibliotekanauki.pl/articles/1819352.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: azot amonowy
materiał sorbcyjny
Opis:: In this paper the authors present the impact study on the electrokinetic potential of ammonium nitrogen removal capabilities using various sorption materials. The study included an analysis of the electrokinetic potential zeta of the selected sorbents and their suitability to determine the removal efficiency of ammonium ions from the model solution and a liquid sludge from the sludge digestion process. Used materials were both natural and modified in the form of dust: activated carbon, natural zeolite, bentonite, sepiolite and ferric sludge from water treatment. Tested materials had a negative electrokinetic potential. The lowest potential of activated carbon had a value of zeta = -20.4 mV and the highest value zeta = -12.1 mV obtained for sepiolite. The results showed a clear dependence of ammonia nitrogen removal on the value of the electrokinetic potential. Sorbents with the most negative zeta potential values had a highest removal efficiency of ammonium ions (carbon, zeolite). The maximum value of the individual removal of ammonium ions was 10 mg N-NH4/g of activated carbon, which is characterized by the most negative value of the electrokinetic potential zeta. The results from this study suggest that, the usefulness of knowledge of the electrokinetic potential, as one of the key parameters of evaluating the physicochemical properties of sorbents.
Źródło:: Rocznik Ochrona Środowiska; 2012, Tom 14; 563-571
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Influence of nitrogen fertilization on the yield, quality and nitrogen utilization efficiency of early potato tubers harvested on two dates
Autorzy:: Trawczynski, C.
Powiązania:: https://bibliotekanauki.pl/articles/14233.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2019, 24, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Genome-wide identification and characterisation of ammonium transporter gene family in barley
Autorzy:: Tanwar, Umesh K.
Stolarska, Ewelina
Paluch-Lubawa, Ewelina
Rudy, Elżbieta
Sobieszczuk-Nowicka, Ewa
Powiązania:: https://bibliotekanauki.pl/articles/28411631.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: ammonium transporter
AMT
bioinformatics
gene expression
barley
Hordeum vulgare
nitrogen use efficiency
Opis:: Nitrogen (N) is an essential macronutrient for the growth and development of plants, but excessive use of nitrogen fertiliser in agriculture can result in environmental pollution. As a preferred nitrogen form, ammonium (NH4+) is absorbed from the soil by the plants through ammonium transporters (AMTs). Therefore, it is important to explore AMTs to improve the efficiency of plant N utilisation. Here, we performed a comprehensive genome-wide analysis to identify and characterise the AMT genes in barley (HvAMTs), which is a very important cereal crop. A total of seven AMT genes were identified in barley and further divided into two subfamilies (AMT1 and AMT2) based on phylogenetic analysis. All HvAMT genes were distributed on five chromosomes with only one tandem duplication. HvAMTs might play an important role in plant growth, development, and various stress responses, as indicated by cis-regulatory elements, miRNAs, and protein interaction analysis. Further, we analysed the expression pattern of HvAMTs in various developmental plant tissues, which indicated that AMT1 subfamily members might play a major role in the uptake of NH4+ from the soil through the roots in barley. Altogether, these findings might be helpful to improve the barley crop with improved nitrogen use efficiency, which is not only of great significance to the crop but also for land and water as it will reduce N fertiliser pollution in the surrounding ecosystem.
Źródło:: Journal of Water and Land Development; 2023, 58; 220--233
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Productivity of winter oilseed rape depending on its nitrogen and water use efficiency
Autorzy:: Rutkowska, Agnieszka
Powiązania:: https://bibliotekanauki.pl/articles/2147964.pdf
Data publikacji:: 2019-12-30
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:: Brassica napus L.
nitrogen rates
Nitrogen Use Efficiency (NUE)
Water Use Efficiency (WUE)
nitrogen surplus
Opis:: This paper presents the results of 11 years of field experimentconcerning winter oilseed rape in Eastern Poland. Theaim of the study was to characterise rape production dependingon the nitrogen and water use efficiency. Oilseed rape was fertilisedwith increasing doses of nitrogen, i.e. 50, 100, 150, 200and 250 kg N ha-1. It was found that rapeseed yields increasedstatistically significantly to 3.33 t ha-1 at a rate of 200 kg N ha-1.This dose guaranteed: nitrogen uptake of 155 kg N ha-1, nitrogenuse efficiency of 78%, nitrogen surplus of 45 kg N ha-1, wateruse efficiency of 8.4 kg ha-1 mm-1 and nitrogen utilisation efficiencyof 22 kg kg-1. Increasing the nitrogen rate in the long termto 250 kg N ha-1 proved to be unjustified because it did not causea significant increase in the yield or water use efficiency, while itsignificantly increased the nitrogen uptake, its surplus in the soiland reduced the efficiency of nitrogen from fertilisers utilisation.
Źródło:: Polish Journal of Agronomy; 2019, 39; 10-15
2081-2787
Pojawia się w:: Polish Journal of Agronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Wpływ nawozu o spowolnionym uwalnianiu azotu na wykorzystanie tego składnika przez bulwy ziemniaka
The influence of slow-release nitrogen fertilizer on utilization this component by tubers potato
Autorzy:: Trawczyński, Cezary
Powiązania:: https://bibliotekanauki.pl/articles/1504757.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: nitrogen fertilizers
yield
nitrogen uptake
nitrogen production efficiency
potato
nawozy azotowe
plon
pobranie azotu
efektywność produkcyjna azotu
ziemniak
Opis:: Celem badań polowych przeprowadzonych w latach 2014-2016 w Instytucie Hodowli i Aklimatyzacji Roślin, Oddział w Jadwisinie, było określenie plonu, pobrania i wykorzystania azotu przez bulwy ziemniaka z nawozu Azoslow, o spowolnionym uwalnianiu azotu w porównaniu do tradycyjnych nawozów azotowych (mocznik, saletra amonowa, saletrzak). Badania przeprowadzono na glebie nawożonej organicznie słomą i międzyplonem gorczycy białej. W doświadczeniu stosowano stały poziom azotu 100 kg N·ha–1, fosforu 17,5 kg P∙ha–1 i potasu 99,6 kg K∙ha–1. Nawożenie mineralne fosforowo-potasowe użyto jesienią pod orkę przedzimową. Nawożenie mineralne azotem stosowano wiosną w dwóch wariantach: przed sadzeniem bulw – 100% i w dawce podzielonej, 50% przed sadzeniem bulw + 50% bezpośrednio przed wschodami roślin ziemniaka. Kontrolę stanowił obiekt bez wykorzystania azotu mineralnego. Na obiekcie z zastosowaniem nawozu Azoslow, o spowolnionym uwalnianiu azotu, stwierdzono istotnie większy plon bulw w porównaniu do obiektu kontrolnego oraz obiektów z użyciem saletry amonowej i saletrzaku. Po użyciu nawozów w pełnej dawce przed sadzeniem uzyskano istotnie większą efektywność produkcyjną azotu w stosunku do dawki podzielonej na dwie części. Stwierdzono istotnie większe wykorzystanie azotu przez bulwy ziemniaka po zastosowaniu nawozu Azoslow w porównaniu do mocznika, saletry amonowej i saletrzaku.
The aim of the field experiment conducted in the years 2014-2016 at the Plant Breeding and Acclimatisation Institute, Department at Jadwisin, was to determine the potato tuber yield and the uptake and utilisation of nitrogen from the fertilizer Azoslow with slow release of nitrogen, in comparison to conventional nitrogen fertilisers (Urea, Ammonium nitrate, Nitro-chalk). The study was conducted on soil fertilized organically with straw and an intercrop of white mustard. In this experiment a constant level of nitrogen 100 kg N ha–1, phosphorus 17.5 kg P ha–1 and potassium 99.6 kg K ha–1 was used. Mineral fertilisation with phosphorus and potassium was applied in the autumn under ploughing. Mineral fertilisation with nitrogen was applied in the spring in two variants: before planting of tubers – 100%, and a divided dose – 50% before planting of tubers + 50% just before the emergence of potato plants. The control was the treatment without the use of mineral nitrogen. In the treatment with the application of the fertiliser Azoslow, with slow release of nitrogen, a significantly higher yield of tubers was noted compared to the control treatment and in the treatments with Ammonium nitrate and Nitro-chalk. After applying the fertilisers in the full dose before the planting of tubers a significantly higher production efficiency of nitrogen was observed in relation to the dose divided into two parts. Significantly greater nitrogen utilisation by potato tubers was found after the application of the fertilizer Azoslow, compared to Urea, Ammonium nitrate and Nitro-chalk.
Źródło:: Acta Agrophysica; 2017, 24, 2; 365-375
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Yielding, chemical composition and nitrogen use efficiency determined for white cabbage (Brassica oleracea L. var. capitata L.) supplied organo-mineral fertilizers from spent mushroom substrate
Autorzy:: Szulc, W.
Rutkowska, B.
Kusmirek, E.
Spychaj-Fabisiak, E.
Kowalczyk, A.
Debska, K.
Powiązania:: https://bibliotekanauki.pl/articles/15336.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

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Skocz do pozycji: 10.

Tytuł:: The effect of fertilization with sulphur on uptake and utilization of nitrogen by winter wheat
Autorzy:: Winiarski, Ryszard
Ochal, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/2147734.pdf
Data publikacji:: 2021-09-30
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:: nitrogen doses
sulphur fertilization
nitrogen uptake
efficiency of nitrogen utilization
Opis:: This paper presents the results of a four-year field study on the effect of sulphur fertilization on nitrogen uptake and its utilization efficiency by winter wheat. A two-factor field ex- periment was carried out over 1999–2002 in a randomized blocks design. The first factor was fertilization with sulphur (in the form of sulphate) in doses of 0 and 60 kg ha-1, while the second fac- tor – nitrogen fertilization (in the form of ammonium nitrate) in doses of 0, 30, 60, 90, 120 and 150 kg N ha-1. Nitrogen was ap- plied in doses of 30 kg N ha-1, at two-week intervals after the start of growing season. The research showed that sulphur fertiliza- tion increased on average the nitrogen uptake by wheat by 3.5%. The efficiency index of nitrogen fertilization of wheat had higher values after application of fertilizers containing sulphur with a tendency to decrease as the dose N increased. Sulphur fertiliza- tion increased the agronomic efficiency of nitrogen in the range of low doses from 30 to 90 kg N ha-1.
Źródło:: Polish Journal of Agronomy; 2021, 46; 31-37
2081-2787
Pojawia się w:: Polish Journal of Agronomy
Dostawca treści:: Biblioteka Nauki

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