Wszystkie pola: soil salinity - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wheat yield response and seasonal salt profile evolution under irrigation with saline waters in a semi-arid region
Autorzy:: Cheraghi, Seyed A. M.
Powiązania:: https://bibliotekanauki.pl/articles/293346.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: saline water
soil salinity
wheat yield
rainfall
leaching fraction
Opis:: Scarcity of fresh water resources is the major constraint for agricultural development in Iran as in many other regions with arid and semi-arid climate. With the pressure on fresh water resources, the use of un-conventional water resources including brackish, saline and sewage water has received greater attentions in recent years. The objective of this study was to assess the impact of farmers' practices using saline groundwater on wheat yield and soil salinity in a Mediterranean climate of Fars province in southern Iran. The study was carried out in several commercial wheat production regions for two years. Chemical analysis of irrigation waters, volume of applied irrigation water, electrical conductivity of soil saturation extract (ECe) and yield were measured in each field. General information on agronomic practices was also collected using a questionnaire. Results demonstrate that waters with salinities higher than what has been classified as “suitable for irrigation” are being used for the production of wheat crop. Analysis of wheat yield response to saline irrigation water showed that for water salinities up to 10.7 mS∙cm^–1 (threshold value) variation in yield was relatively minor, above which wheat yield decreased at a greater rate. Root zone salinity profiles showed the effect of winter rainfall in reducing soil salinity. It is concluded that although acceptable yields are obtained with some of the highly brackish waters, over application of these waters would threaten the sustainability of crop production in the region.
Źródło:: Journal of Water and Land Development; 2020, 44; 26-32
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The impact of production of silver nanoparticles using soil fungi and its applications for reducing irrigation water salinity
Autorzy:: Yaseen, Rabaa
Kotp, Yousra H.
Eissa, Doaa
Powiązania:: https://bibliotekanauki.pl/articles/292300.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: antimicrobial activity
dehydrogenase
mycoynthesized nano-silver
nitrate reductase
reverse osmosis
soil salinity
water desalination
Opis:: In the present work, the dried biomass of soil isolated fungus Eurotium cristatum was used for synthesizing silver nanoparticles (AgNPs). The synthesized AgNPs were spherical in shape with average diameter of 16.56 nm and displayed maximum absorbance at 418. Fourier transform infrared (FTIR) study indicated the presence and binding of proteins with myco-produced silver nanoparticles. The optimum conditions for AgNPs biosynthesis were found to be at temperature of 40°C, pH of 8.0, substrate concentration of 500 ppm and fungal biomass wt. of 0.8 g. The AgNPs showed antibacterial activity against Staphylococcus aureus, Listeria monocytogenes, Escherichia coli and Shigella flexneri. AgNPs was built-in thin film nanocomposite (TFNC) membrane and the impacts of nanomaterial composition on membrane properties and desalination process were studied. The AgNPs produced membrane TFNC had better filtration performances than pure thin film composite membrane TFC. The TFNC membrane had enhanced water flux (32.0 vs. 16.5 dm³∙m^–2∙h^–1) and advanced NaCl rejection (91.7 vs. 89%) compared to the TFC membrane. A pot experiment was conducted to evaluate the effect of the irrigation with desalinated water on yield and productivity of essential oil of the sweet basil (Ocimum basilicum L.) and lavender (Lavandula multifida L.). The irrigation with desalinated water reduced significantly the soil reaction, soil electrical conductivity (EC), sodium adsorption ratio and exchangeable sodium percent in rhizospheric soil, it also enhanced the growth and oil yield of both plants compared with those irrigated with salt water.
Źródło:: Journal of Water and Land Development; 2020, 46; 216-228
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evaluating the suitability of a new telemetric capacitance-based measurement system for real-time application in irrigation and fertilization management
Autorzy:: Treder, Waldemar
Klamkowski, Krzysztof
Tryngiel-Gać, Anna
Wójcik, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/2203534.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: electrical conductivity
fertigation
salinity
soil moisture
Opis:: The suitability of a new wireless smart farming system for controlling irrigation and fertilization of horticultural plants was assessed in the study. The system (name: AGREUS® ) includes sensors (soil moisture, salinity, weather data), executive modules (valve modules), and an application available on the web portal (accessed through computers and mobile devices). The studies were performed under laboratory and field conditions. Laboratory tests included appraisal of the precision of soil moisture and salinity measurements carried out with the soil probe (comparison with the results obtained by laboratory methods). Operational tests were conducted in field trials. In these trials, assessment of the possibility of practical control of irrigation and monitoring soil salinity was performed in an apple orchard. The conducted analyses have shown the usefulness of the system, not only for automatic control of irrigation but also for making decisions about the necessity to fertilize plants. The system enables continuous monitoring of changes in soil moisture and salinity, including the migration of minerals across the soil profile (using a probe with several measuring elements) as a result of the applied irrigation or rainfall. The system allows for automatic application of irrigation or fertigation depending on the adopted soil moisture and salinity thresholds. However, the tests showed that a salinity index calculated by the system does not directly correspond to the salinity values determined by laboratory methods. For this reason individual interpretation and determination of optimal ranges for plants is required.
Źródło:: Journal of Water and Land Development; 2023, 56; 67--73
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Assessment of groundwater salinity and risk of soil degradation in Quaternary aquifer system. Example: Annaba plain, Algeria N-E
Ocena zasolenia wód gruntowych i ryzyko degradacji gleb w czwartorzędowym poziomie wodonośnym: Przykład z równiny Annaba w północnowschodniej Algierii
Autorzy:: Halimi, S.
Rechachi, H.
Bahroun, S.
Mizane, N. E.
Daifallah, T.
Powiązania:: https://bibliotekanauki.pl/articles/292537.pdf
Data publikacji:: 2018
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Annaba plain
hydrogeochemistry
irrigation
quality
water resources
water salinization
hydrogeochemia
jakość wody
nawodnienia
równina Annaba
zasoby wody
zasolenie wód
Opis:: Quality of water resources in Annaba plain (North East) of Algeria is facing a serious challenge due to industrialisation and excessive exploitation of water. Therefore, 29 groundwater samples were collected from this area to assess their hydrogeochemistry and suitability for irrigation purposes. The groundwater samples were analysed for distribution of chemical elements Ca²⁺, Mg²⁺, Na⁺, K⁺, HCO₃ ⁻, Cl⁻, and SO₄ ²⁻. It also includes pH, electrical conductivity. The hydrochimical study has shown that the facieses are changing between a pole calcium-chloride-sulphate and sodium-chloride types. The results also showed that the salinity is the major problem with water for irrigation use (58% of samples fall into C3S1 class). As a result, the quality of the groundwater is not suitable for sustainable crop production and soil health without appropriate remediation.
Jakość zasobów wodnych na równinie Annaba w północnej Algierii jest poważnie zagrożona wskutek industrializacji i nadmiernej eksploatacji wody. Było to motywem do podjęcia badań prezentowanych w niniejszej pracy. Pobrano 29 próbek wody gruntowej z tego obszaru, aby ocenić jej właściwości hydrogeochemiczne i przydatność do nawodnień. Próbki wody gruntowej analizowano pod kątem stężenia Ca²⁺, Mg²⁺, Na⁺, K⁺, HCO₃⁻, Cl⁻ i SO₄ ²⁻ oraz pH i przewodnictwa elektrolitycznego. Badania hydrochemiczne wykazały, że skład wody zmienia się od typu wapniowo-chlorkowo-siarczanowego do sodowo-chlorkowego. Wyniki analiz dowodzą, że zasolenie wód stanowi poważny problem ze względu na ich zastosowanie do nawodnień (58% próbek mieściło się w klasie C3S1). Uznano, że jakość wód gruntowych bez wstępnych zabiegów remediacyjnych nie jest odpowiednia do produkcji roślinnej i utrzymywania właściwego stanu gleb.
Źródło:: Journal of Water and Land Development; 2018, 36; 57-65
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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