Temat: paddy - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Impacts of Irrigation System on Agriculture: A Study Based on Porativupattu ds Division
Autorzy:: Mathanraj, S.
Powiązania:: https://bibliotekanauki.pl/articles/1178797.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Agriculture
Irrigation
Paddy production
Rainfall
Vegetables
Opis:: Irrigation is the artificial application of water to the land or soil. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and re-vegetation of disturbed soils in dry areas and during periods of inadequate rainfall. Paddy production is the main agriculture of this area, has good climate, well irrigation and soil structure for paddy production. Both temperature and rainfall are the main climatic factors that affected the paddy cultivation. The main objective of the study is to find out the agricultural activities especially paddy cultivation. The sampling method has been used to collect the primary data through the questionnaire survey from 100 households and secondary data has been gathered form District Secretariat, Irrigation Report, and published research reports. MS Excel was utilized for the study to examine the changes of paddy production and other agriculture due to the irrigation water. As the result, paddy production was very high in the Maha season but it was low in Yala season because of the less rainfall and irrigation process. In addition, the highland crops were cultivated around 396 hectare in this area. Whatever, when compere with vegetable production, this was very low and the vegetable production was very high. Thus, these area people cultivate different kind of crops for their economy but have the less production. Therefore, the improvement of irrigation and other water body help to make much production can be produced more in highland crops cultivation. Proper management and better agricultural practices cause to the high production in future.
Źródło:: World Scientific News; 2017, 90; 127-137
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Influence of Rainfall Variability on Paddy Production: A Case Study in Batticalloa District
Autorzy:: Mathanraj, S.
Kaleel, M. I. M.
Powiązania:: https://bibliotekanauki.pl/articles/1189997.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Agriculture
Meteorology
Paddy production
Rainfall variability
Opis:: Climate change has become a major concern to human society because of its potentially deleterious impact worldwide. The degree to which rainfall amounts vary across an area or through time is an important characteristic of the climate of an area. This subject area in meteorology is called "rainfall variability”. Changes in amount, intensity and frequency affect the environment and society. The annual rainfall varies from 864 mm to 3081 mm (146 years data) distribution, which has sight variation throughout the district. The study purposes to examine the relationship between rainfall and paddy production. Samplings from 100 households have been gathered by questionnaire survey as primary data and the secondary data has been collected Meteorological Department, Department of Agriculture and published research reports. 146 years rainfall data and 34 years paddy cultivation data has been utilized to analyse the result. Accurate statistical methods have been used to find the variability that includes correlation and trend analysis of 3, 5 years moving average of standard deviation. As the result, the study finds that through the 3, 5 years moving average had shown high drier seasons of the years. The paddy production was very high in Maha season but this was very low in Yala season because of the rainfall variability. By the correlation between rainfall and paddy production, the significant value is positive in Maha season and this is negative in Yala season. However, both are having the different significance each other. Thus, even the rainfall was highly influenced to the higher production, this is impossible in each time. Therefore, the development of irrigation tanks and channels, rainwater harvesting and proper management would be supported to more production in Yala season.
Źródło:: World Scientific News; 2016, 52; 265-275
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Modelling and analysis of compressive strength properties of parboiled paddy and milled rice
Autorzy:: Nasirahmadi, A.
Abbaspour-Fard, M.A.
Emadi, B.
Khazaei, N.B.
Powiązania:: https://bibliotekanauki.pl/articles/26473.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: modelling
analysis
compression strength
paddy
milled rice
rice
Opis:: .
Źródło:: International Agrophysics; 2014, 28, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Socio-economic impact of wetlands: a study based on Navithanveli DS Division
Autorzy:: Nijamir, K.
Powiązania:: https://bibliotekanauki.pl/articles/1113694.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Navithanveli DS Division
Socio-economy
biodiversity
groundwater recharge
paddy cultivation
wetland
Opis:: The prime objective of this study is to assess the socio-economic impact of wetlands in the study area; the secondary objective is to establish the condition of the wetlands and to propose remedial measures. Primary and secondary data were used for this study. As primary data, we employed direct observation, questionnaire survey and group discussion. As secondary data, we utilized statistical data from Navithanveli DS Division, previous researches and general ecological works. In Navithenveli DS Division, inhabitants are benefitted by wetlands in many ways. Paddy cultivations, vegetable cultivation, small-scale fishing, biodiversity, groundwater recharge, gardening, Tule mat industry and water for domestic usages. Indiscriminate activities of inhabitants, unplanned and improper infrastructure have caused many challenges for the wetlands in the study area. Many remedial measures have been recommended to conserve the wetlands in the study area.
Źródło:: World News of Natural Sciences; 2017, 14; 116-123
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Soil organic carbon physical fractions and aggregate stability influenced by land use in humid region of northern Iran
Autorzy:: Ayoubi, S.
Mirbagheri, Z.
Mosaddeghi, M.R.
Powiązania:: https://bibliotekanauki.pl/articles/2082913.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: Hyrcanian forest
tea plantation
paddy rice
complexed organic carbon
Opis:: The present study was executed in order to examine the influences of land use change on aggregate stability and soil organic carbon fractions in the humid region of the north of Iran. The study area featured three land uses which included natural Hyrcanian forest, tea plantation and paddy rice cultivation. One hundred soil samples were taken from the 0-10 cm layer in a grid pattern to allow for variations in the study area as much as possible in summer 2016. The results revealed that land use change significantly altered the physical and chemical characteristics of the soil, as the highest values of soil organic carbon and complexed organic carbon, and the lowest values of pH, calcium carbonate equivalent and bulk density, were observed in the natural forest. The greatest percentage of macro-aggregates was found in the natural forest followed by the tea plantation. Particulate organic carbon and soil organic carbon associated with clay and silt particles as well as soil organic carbon associated with all aggregate fractions showed the following trend: natural forest > tea plantation > rice cultivation. Overall, our results confirmed the importance of forest soils in C sequestration and the vital role played by soil organic carbon in soils to improve soil quality indicators and aggregation.
Źródło:: International Agrophysics; 2020, 34, 3; 343-353
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Effect of chromium on growth, biochemicals and nutrient accumulation of paddy (Oryza sativa L.)
Autorzy:: Nagarajan, M.
Sankar Ganesh, K.
Powiązania:: https://bibliotekanauki.pl/articles/11254.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: chromium
heavy metal accumulation
plant growth
nutrient
paddy
Oryza sativa
Opis:: Chromium is a heavy metal; this element is considered as an environmental hazard. Toxicity effects of chromium on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study accumulation of Chromium along with nutrients and its effect on the growth of Paddy plant (Oryza sativa L). Thus, paddy seedlings grown in petriplates lined with filter paper undergoing, different treatments of Cr (0, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/L). After one week seedlings were removed and morpho physiological parameters like root length, shoot length and dry weight of plants and Biochemicals ,accumulation of nutrients along with Cr in roots and shoots were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphophysiology parameters in the treatment plants rather than control plant and Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings. Similarly the biochemicals and nutrient accumulation also affected by increasing concentrations of chromium. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the seedlings under treatment.
Źródło:: International Letters of Natural Sciences; 2014, 18
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Ethnomedicinal aspects of some weeds from paddy fields of Villupuram district in Tamil Nadu, India
Autorzy:: Dhanam, S.
Elayaraj, B.
Powiązania:: https://bibliotekanauki.pl/articles/11111.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: ethnomedicine
weed
paddy field
plant species
medicinal plant
Villupuram district
Tamil Nadu
India
Opis:: The present investigation has been carried out to enumerate the ethnomedicinal plant growing in the paddy field of Villupuram district, Tamil Nadu. Ten selected sites in the Villupuram district was taken for investigation. Random quadrate method was adapted for studying the phytosociological attributes of the weeds. A total of 145 plant species belonging to 22 families were identified, out of which 39 plant species are medicinally important to cure different diseases in human beings directly. Amaranthaceae and Euphorbiaceae was the dominant family seen during observation. Frequency, Relative frequency, Density, Relative density, Abundance, Relative abundance and Important Value Index (IVI) of the species were calculated.
Źródło:: International Letters of Natural Sciences; 2014, 14
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: More insight into the concept of iron plaque formation and its characteristics in rice (Oryza sativa L.)
Autorzy:: Zandi, Peiman
Puła, Joanna
Xia, Xing
Bloem, Elke
Darma, Aminu
Wang, Yaosheng
Turisová, Ingrid
Li, Qian
Ngoc Sinh, Luu
Li, Na
Powiązania:: https://bibliotekanauki.pl/articles/2173114.pdf
Data publikacji:: 2021-11-19
Wydawca:: Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:: iron oxide plaque
toxic metals immobilisation
radial oxygen loss
paddy fields
Opis:: Trwały i bioakumulacyjny charakter toksycznych metali(oidów) (TM) jest głównym problemem związanym z ich obecnością w środowisku. Skażenie TM w glebie i osadach zwiększa potencjalne ryzyko utraty zdrowia człowieka, przez narażenie na skażenie łańcucha pokarmowego. Odkładanie płytki tlenku żelaza na korzeniach hydrofitowych (np. ryżu) jest wynikiem różnych czynników biotycznych i abiotycznych. Promieniowa utrata tlenu (ROL) odgrywa kluczową rolę w utlenianiu żelaza w ryzosferze, a następnie wytrącaniu nisko- lub wysoko krystalicznych i/lub amorficznych minerałów żelaza na powierzchni korzeni. Biorąc pod uwagę, że każdy gatunek rośliny ma unikalną zdolność tworzenia utlenionej ryzosfery w warunkach beztlenowych gleby, obecność żelaza w ryzosferze ma ogromne znaczenie. Grupy funkcyjne (-OH) i specyficzne powierzchnie reagujące w blaszkach żelaza mają wysokie powinowactwo do adsorpcji różnych metali śladowych (toksycznych/nietoksycznych), wpływając na ich wchłanianie i akumulację w roślinach. W akumulacji różnych pierwiastków ważną rolę odgrywają płytki żelaza (IP). Gatunki roślin o niskim IP na swoich korzeniach mogą lepiej akumulować metale ciężkie, niezależnie od tego, czy IP jest barierą, czy buforem. Rośliny jadalne o wysokim IP są lepszymi fito-remediatorami potencjalnie fitotoksycznych metali(oidów) i mogą być bezpieczniejsze do spożywania przez ludzi. Niniejszy przegląd podsumowuje obecną wiedze dotyczącą czynników związanych z tworzeniem i funkcjami płytki żelaza w zarządzaniu transportem metali w systemie korzeniowym.
Trwały i bioakumulacyjny charakter toksycznych metali(oidów) (TM) jest głównym problemem związanym z ich obecnością w środowisku. Skażenie TM w glebie i osadach zwiększa potencjalne ryzyko zanieczyszczenia i zagraża zdrowiu człowieka przez narażenie na skażenie łańcucha pokarmowego. Odkładanie się płytki tlenku żelaza na korzeniach hydrofitowych (np. ryżu) jest wynikiem różnych czynników biotycznych i abiotycznych. Promieniowa utrata tlenu (ROL) odgrywa kluczową rolę w utlenianiu żelaza w ryzosferze, a następnie wytrącaniu nisko- lub wysoko krystalicznych i/lub amorficznych minerałów żelaza na powierzchni korzeni. Biorąc pod uwagę, że każdy gatunek rośliny ma unikalną zdolność tworzenia utlenionej ryzosfery w warunkach beztlenowych gleby, obecność żelaza w ryzosferze ma ogromne znaczenie. Grupy funkcyjne (-OH) i specyficzne powierzchnie reagujące w blaszkach żelaza mają wysokie powinowactwo do adsorpcji różnych metali śladowych (toksycznych/nietoksycznych), wpływając na ich wchłanianie i akumulację w roślinach. W akumulacji różnych pierwiastków ważną rolę odgrywają płytki żelaza (IP). Gatunki roślin o niskim IP na swoich korzeniach mogą lepiej akumulować metale ciężkie, niezależnie od tego, czy IP jest barierą czy buforem. Rośliny jadalne o wysokim IP są lepszymi fitoremediatorami potencjalnie fitotoksycznych metali(oidów) i mogą być bezpieczniejsze do spożywania przez ludzi. Niniejszy przegląd podsumowuje obecne zrozumienie czynników związanych z tworzeniem się i funkcjami płytki żelaza w zarządzaniu transportem metali w systemie korzeniowym.
Źródło:: Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2021, 6; 226-250
2543-8832
2545-0999
Pojawia się w:: Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Assessment of soil quality in organic and non-organic paddy fields with technical irrigation system in Susukan
Autorzy:: Haryuni, Haryuni
Wirawati, Hesti
Minardi, Slamet
Supriyadi, Supriyadi
Powiązania:: https://bibliotekanauki.pl/articles/2088202.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: soil quality
paddy fields
principal component analysis
minimum data set (MDS)
soil quality index (SQI)
Opis:: Soil quality is a measure of the condition of soil. The goal of sustainable agriculture is to maintain a non-negative trend in productivity while maintaining soil quality. Susukan is an area in Semarang, Central Java, Indonesia, which has developed organic farming to increase rice productivity and quality. The main objective was to determine the sustainability of organic rice cropping systems. The organic farming system at the research location has been conducted for 8 years. Appropriate agricultural management can maintain the quality of soil, environment and improve the health of plants, animals and humans. This research aims to know the soil quality and determine the minimum data set (MDS) in organic and non-organic paddy field with a technical irrigation system. Paddy soil samples were analyzed in the laboratory. The parameters are porosity, permeability, hydrogen potential (pH), cation exchange capacity (CEC), soil organic matter (SOC), total-N (nitrogen), carbon/nitrogen (C/N) ratio, available-P (phosphorus), available-K (potassium), base saturation (BS), electric conductivity (EC), soil respiration (qCO2), redox potential (Eh) with 3 repetitions. The value of soil quality index (SQI) in the organic paddy field is 3.216 with bad soil quality criteria, while the non-organic paddy field is 0.147 with very bad criteria. The soil quality values are based on the key factors or MDS that is potential redox (EH), soil respiration (qCO2), potential hydrogen (pH), porosity, soil organic matter (SOC), total-N (nitrogen), C/N ratio, available-P (phosphorus).
Źródło:: Polish Journal of Soil Science; 2020, 53, 1; 81-95
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Isolation and identification of elite phosphate solubilizing bacteria from soil under paddy cultivation
Autorzy:: Gandhi, A.
Muralidharan, G.
Sudhakar, E.
Powiązania:: https://bibliotekanauki.pl/articles/11092.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: isolation
identification
phosphate
phosphate solubilizing bacteria
soil
paddy
plant cultivation
Bacillus
rhizobacteria
Opis:: A considerable number of bacterial species are able to exert a beneficial effect upon plant growth. Mostly they are associated with the plant rhizosphere, so they are called as rhizobacteria. Phosphorus is an essential element for plant development and growth making up about 0.2 % of plant dry weight. Several scientists have reported the ability of different bacterial species to solubilize insoluble inorganic phosphate compounds, such as tricalcium phosphate, dicalcium phosphate, hydroxyapatite, and rock phosphate. Detection and estimation of the phosphate solublization ability of microorganisms have been possible using plate screening methods. Phosphate solubilizers produce clearing zones around the microbial colonies in growth media. In the present investigation a total number of fifteen phosphate solubilizing bacterial colonies isolated from different paddy soils in Cuddalore district of Tamilnadu, India. The isolated PSB were identified and characterized for effective use in the field. All the PSB isolates were identified as Bacillus species and designated as P with serial number from 1 to 15. Among the fifteen isolates, the PSB isolate P6 showed highest amount of phosphate solubilization. The quantity of available phosphorus estimated in the P6 grown Sperber broth culture medium on 7th day was maximum of 321.7 μg/ml which was the highest value compared to other PSB isolates.
Źródło:: International Letters of Natural Sciences; 2014, 11, 1
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Assessment of soil quality in organic and non-organic paddy fields with technical irrigation system in Susukan
Autorzy:: Haryuni, H.
Wirawati, H.
Minardi, S.
Supriyadi, S.
Powiązania:: https://bibliotekanauki.pl/articles/971160.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: soil quality
paddy fields
principal component analysis
minimum data set (mds)
soil quality index (sqi)
Opis:: Soil quality is a measure of the condition of soil. The goal of sustainable agriculture is to maintain a non-negative trend in productivity while maintaining soil quality. Susukan is an area in Semarang, Central Java, Indonesia, which has developed organic farming to increase rice productiv- ity and quality. The main objective was to determine the sustainability of organic rice cropping sys- tems. The organic farming system at the research location has been conducted for 8 years. Appropri- ate agricultural management can maintain the quality of soil, environment and improve the health of plants, animals and humans. This research aims to know the soil quality and determine the minimum data set (MDS) in organic and non-organic paddy field with a technical irrigation system. Paddy soil samples were analyzed in the laboratory. The parameters are porosity, permeability, hydrogen potential (pH), cation exchange capacity (CEC), soil organic matter (SOC), total-N (nitrogen), car- bon/nitrogen (C/N) ratio, available-P (phosphorus), available-K (potassium), base saturation (BS), electric conductivity (EC), soil respiration (qCO2), redox potential (Eh) with 3 repetitions. The value of soil quality index (SQI) in the organic paddy field is 3.216 with bad soil quality criteria, while the non-organic paddy field is 0.147 with very bad criteria. The soil quality values are based on the key factors or MDS that is potential redox (EH), soil respiration (qCO2), potential hydrogen (pH), poros- ity, soil organic matter (SOC), total-N (nitrogen), C/N ratio, available-P (phosphorus).
Źródło:: Polish Journal of Soil Science; 2020, 53, 1
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki