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    Wyświetlanie 1-7 z 7
    Tytuł:
    Evaluation of the Effects of Three Chemical Fertilizers on Artemia salina
    Autorzy:
    Naamane, Ayoub
    El Birgui, Kaouthar
    Rafii, Soumaya
    Merbouh, Chaimaa
    Iounes, Nadia
    El Amrani, Souad
    Powiązania:
    https://bibliotekanauki.pl/articles/24201769.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    ecotoxicological test
    Artemia salina
    chemical fertilizer
    biomonitoring
    Opis:
    As part of eco-toxicological tests on Artemia salina, the impact of the most commonly used fertilizers in Morocco was assessed (Ammonium Sulfate, Ammonium Nitrate, and a mixture of Nitrogen 10%, Phosphorus 30% and Potassium 10%), with Potassium Bichromate (K2Cr2O7) as reference substance at different concentrations (10, 20, 40, 80, 160, 320 mg/l), for 24 hours. The results of the statistical study revealed that the lethal effects caused by the three agrochemicals increase with the concentration and vary from one substance to another in a significant way. There is a higher sensitivity to ammonium sulphate (the concentration that kills 50% of the animals: 37.32 mg/l ± 6.09) followed by ammonium nitrate the concentration that kills 50% of the animals: 110.7 mg/l ± 7.11), and a mixture of Nitrogen 10%, Phosphorus 30% and Potassium 10% (the concentration that kills 50% of the animals: 143.13 mg/l ± 23.12). Therefore, Artemia salina exhibits sensitivity to agrochemicals and can be considered as a good biomonitoring tool for future toxicological analysis of agrochemicals.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 5; 103--109
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Emissions from the production of chemical fertilisers and fuel consumption in various technologies of energy crops cultivation
    Emisje z produkcji nawozów sztucznych i zużycia paliw w różnych technologiach upraw roślin energetycznych
    Autorzy:
    Konieczna, A.
    Pasyniuk, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/36241.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    emission
    chemical fertilizer
    fertilizer production
    greenhouse gas
    fuel consumption
    production technology
    energy crop
    Opis:
    The paper presents the results of a study on the impact of the cultivation of crops which may serve as a substrate for a biogas plant on the atmosphere. Subjects addressed in the study cover a range of issues related to greenhouse gas (GHG) emissions from this area of agricultural activity. The amounts of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) emitted to the atmosphere in the selected cultivation technologies of beet, maize for silage and grasses were calculated. Emissions of GHG from chemical fertiliser production corresponding to the quantities used in the individual technologies were analysed, and amounts of the emitted above-mentioned pollutants originating from diesel fuel used during agricultural treatments conducted with the use of agricultural machinery were calculated. Emission values were expressed in equivalent units – E CO2eq. The study demonstrated that technologies which result in the highest quantities of emission are maize cultivation technologies – the average value for the study crops is 1 428 490.56 g haˉ¹ CO2eq. The lowest level of pollutants in the form of emitted greenhouse gases originates from grass cultivation and its average value is 904 661.28 g haˉ¹ CO2eq.
    W artykule przedstawiono wyniki badań wpływu na atmosferę upraw roślin, które mogą posłużyć jako substrat do biogazowi. Zagadnienia poruszone w opracowaniu obejmują zakres problematyki związanej z emisją gazów cieplarnianych (GHG) z tego obszaru działalności rolniczej. Obliczono ilość emisji dwutlenku węgla (CO2), metanu (CH4) i podtlenku azotu (N2O) jakie zostały wyemitowane do atmosfery w wybranych technologiach uprawy buraków, kukurydzy na kiszonkę i traw. Rozważono emisje GHG z produkcji nawozów sztucznych odpowiadające ilościom zastosowanym w poszczególnych technologiach oraz wyliczone zostały ilości wyemitowanych wyżej wymienionych zanieczyszczeń pochodzących z zużytego oleju napędowego podczas przeprowadzonych za pomocą maszyn rolniczych zabiegów agrotechnicznych. Wartości emisji wyrażono w jednostce ekwiwalentnej – ECO2eq. Badania wykazały, że technologiami, z których pochodzą największe ilości emisji są technologie uprawy kukurydzy – średnia wartość z badanych upraw to 1 428 490,56 CO2eq. Najniższy poziom zanieczyszczeń emitowanych gazów cieplarnianych pochodzi z upraw traw i wynosi średnio 904 661,28 CO2eq.
    Źródło:
    Acta Agrophysica; 2016, 23, 4
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fertilizers applied in modern agriculture are neither harmful nor toxic
    Nawozy stosowane w nowoczesnym rolnictwie nie są ani szkodliwe, ani toksyczne
    Autorzy:
    Labuda, S. Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/388595.pdf
    Data publikacji:
    2014
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    agriculture definition
    chemical fertilizer
    fertilization criticism
    definicja rolnictwa
    nawozy sztuczne
    krytyka nawożenia
    Opis:
    The paper presents definition of a modern agriculture as a man activity in very broad natural and social interactions. The paper also presents critical views on modern farming and fertilization, as well as indicates that the proper use of artificial fertilizers is and should be an important factor of crop productivity. The paper gives the list of the most basic chemical fertilizers and current level of fertilizing components use in Poland. The title of the paper, which is also the main thesis of the study, fully confirms the legitimacy of a view that chemical fertilizers are neither harmful nor toxic, and it is in the opposition to the common and false opinions that present chemical fertilizers as dangerous for humans, which is of course completely groundless.
    Praca przedstawia definicję nowoczesnego rolnictwa jako działalności człowieka w bardzo szerokich przyrodniczych i społecznych interakcjach. W pracy przedstawiono również krytyczne poglądy na współczesne rolnictwo i nawożenie, a także wskazano, że właoeciwe stosowanie nawozów sztucznych jest i powinno być ważnym czynnikiem produktywności roślin uprawnych. W pracy przedstawiono także najbardziej podstawowe nawozy sztuczne i współczesny poziom zużycia składników nawozowych w Polsce. Tytuł pracy, który jest również glówną tezą opracowania, w pełni potwierdza prawdziwość tego poglądu, że nawozy sztuczne nie są, ani szkodliwe, ani toksyczne i to jest przeciwieństwem do powszechnych i fałszywych opinii, które straszą nawozami jako niebezpiecznymi dla ludzi co jest oczywiście w pełni bezpodstawne.
    Źródło:
    Ecological Chemistry and Engineering. A; 2014, 21, 1; 15-24
    1898-6188
    2084-4530
    Pojawia się w:
    Ecological Chemistry and Engineering. A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of yield, yield components and some physiological and qualitative traits of corn affected by chemical and biological nitrogen fertilizers
    Autorzy:
    Kordi, S.
    Ghanbari, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/12616968.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    maize
    corn
    yield evaluation
    yield component
    qualitative trait
    physiological trait
    chemical fertilizer
    biological fertilizer
    nitrogen fertilizer
    Opis:
    In order to evaluate the yield, yield components and some physiological and qualitative traits of corn treated with nitrogen fertilizers (biological, chemical and integrated), a field experiment was conducted at the Agricultural Research Station of Khorramabad during 2016 growing season. Treatments were arranged in a complete randomized block design with four replications. Experimental treatments consisted of 100% chemical fertilizer (urea), bio-fertilizer (nitroxin), integration of bio-fertilizer + 25% chemical fertilizer, integration of bio-fertilizer + 50% chemical fertilizer, integration of bio-fertilizer + 75% chemical fertilizer and the control. Results showed that the effect of different treatments of fertilizers on all measured traits, except for number of rows in each ear and carotenoids, was significant. The results indicated that integration of bio-fertilizer + 75% chemical fertilizer affected the highest grain yield (9.31 t ha–1), dry biological yield (20.96 t ha–1), number of kernels in each row (41.67), plant height (201.02 cm), hectoliter weight (0.82 g cm–3), chlorophyll b (0.43 mg g–1 FW), total chlorophyll (1.1 mg g–1 FW) and leaf area index (LAI) (4) and there was no significant difference among this treatment and 100% chemical fertilizer (N) and integration of bio-fertilizer + 50% chemical fertilizer treatments in all measured traits. The greatest harvest index (45.8) and grain protein-content (9.1%) resulted from the integration of biofertilizer + 50% chemical fertilizer treatment. Also the highest 1000-grains weight (281.13 g) and chlorophyll a (0.66 mg g–1 FW) were caused by 100% chemical fertilizer (urea) treatments. Results showed that integration of bio-fertilizer + chemical fertilizer could be considered as a means to reduce the consumption of chemical fertilizers for sustainable agriculture.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 1; 3-12
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nutritional value and mineral concentrations of sweet basil under organic compared to chemical fertilization
    Autorzy:
    Naiji, M.
    Souri, M.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/11896959.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    Ocimum basilicum
    sweet basil
    herbal plant
    organic cultivation
    nutritional value
    mineral concentration
    plant nutrition
    chemical fertilizer
    Opis:
    Safe production of leafy vegetables is more important than other horticultural crops due to their significant contribution in health promotion of consumers. In present study, the growth and nutritional quality of sweet basil plants (Ocimum basilicum L.) were evaluated under some organic compared to chemical NPK fertilizing treatments. A non cultivated soil was used in the experiment, and treatments were arranged in completely randomized design with four replications. Manure in 20 and 40% of pot volume, vermicompost in 20 and 40% of pot volume, biophosphate, NPK fertilizer and a no fertilizing control were applied to plants. The results showed that plant growth and biochemical characteristics were differently affected by organic and chemical fertilization treatments. Vermicompost particularly in 20% of pot volume resulted in highest growth and quality parameters, while the lowest values recorded in 40% manure treatment. The leaf content of ascorbic acid, essential oil, protein and minerals (P, K, Mn, Cu) were highest in 20% vermicompost, whereas leaf content of Mg, Fe and Zn was highest in 40% vermicompost treatment. Leaf nitrate content was significantly reduced in all organic treatments than NPK fertilization. Biophosphate also improved the yield and quality traits compared to unfertilized plants, while manure in both quantities reduced most of the traits (leaf vitamin C, oil yield and protein content) except the content of phenols. This indicates that processing as vermicompost can be a better way of manure application for basil production.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 167-175
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contribution of a Geographic Information System to Assess the Vulnerability to Groundwater Pollution of the Free Water Table from the Oued Souf Region (South-East Algeria)
    Autorzy:
    Khelfaoui, Faycal
    Sayad, Lamine
    Attoui, Badra
    Bouselsal, Bouualem
    Ghezaili, Salah
    Powiązania:
    https://bibliotekanauki.pl/articles/2051691.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    free aquifer
    Oued Souf
    chemical fertilizer
    vulnerability
    DRASTIC
    GOD
    susceptibility index
    pollution
    SIG
    warstwa wodonośna
    Oued Suf
    nawozy chemiczne
    zanieczyszczenia
    Opis:
    The Oued Souf free aquifer located in the South East of Algeria represents the main water resource used mostly for urban and agricultural activities. The intensive use of chemical fertilizers has led to serious environmental problems such as contamination of the free aquifer in the region. Thus, aquifer vulnerability has been assessed using several different methods (DRASTIC, GOD, and the Susceptibility Index ‘SI’) based on a geographic information system (GIS). For each method, two vulnerability maps have been developed in the years 2002 and 2012. These maps show that the study area is more exposed to urban, and especially agricultural, pollution. Two classes of vulnerability (moderate and high) have been identified by both DRASTIC and GOD methods. A combined analysis reveals that the moderate class showing 48% (for the GOD method), and the high class showing 57% (for the DRASTIC method) are the most dominant. However, the Susceptibility Index method (SI) revealed that the vulnerability varies from moderate to very high-level classes. In 2012, about of 53% of the study area was dominated by moderate vulnerability classes. The high vulnerability class also includes a considerable part of the land (41%) around urban or strongly agricultural areas, while only 6% is under very high vulnerability groundwater contamination. In addition, a marked decrease in the vulnerability level was noticed in 2012 compared to 2002. This decrease is mainly due to the lowering of the water table after the installation of a vertical drainage network to evacuate the surplus water to the depression and Chotts areas in the North of the region. These results provide a guide for decision-makers involved in the protection of groundwater pollution in such a vulnerable area.
    Źródło:
    Civil and Environmental Engineering Reports; 2021, 31, 3; 1-17
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Climate change: causes, effects and the need for science education for sustainable development
    Autorzy:
    Nwona, H.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/11299.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    climate change
    science
    education
    sustainable development
    need
    global warming
    environmental imbalance
    human activity
    carbon dioxide emission
    chemical fertilizer
    deforestation
    agriculture
    industry
    methane emission
    greenhouse effect
    Opis:
    The world we live in has witnessed some drastic environmental imbalance in recent times. These imbalances have threatened sustainable development- which is the ultimate goal of man-environment relationship. This paper reviews the causes and effects of climate change on man and his environment with a view to using science education to solve the problems posed by climate change. Literature shows that climate change results mainly from human activities such as rapid deforestation for agricultural and industrial purposes, carbon dioxide emission from fossil fuel burning, carbon dioxide emission from burning gasoline for transportation, usage of chemical fertilizers on croplands and methane emission from animals, agriculture and arctic sea beds. The consequences of these activities include global warming, ozone layer depletion, greenhouse effect, rising sea level and acid rain. It is recommended here that the whole educational process be re-packaged to emphasize science education as a panacea for sustainable development. The argument here is that the educational institutions are the best media for the inculcation of proper morals and values. It is also recommended that teacher education programmes should allocate more funds to research in, and teaching of science in schools.
    Źródło:
    International Letters of Natural Sciences; 2013, 04
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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