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Tytuł:
Response of different basil varieties to soil salinity
Autorzy:
Said-Al Ahl, H.A.H.
Meawad, A.A.
Abou-Zeid, E.N.
Ali, M.S.
Powiązania:
https://bibliotekanauki.pl/articles/24582.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
pot experiment
basil
Ocimum basilicum var.odoratus
Ocimum basilicum var.alba
Ocimum basilicum var.thyrsiflorum
Ocimum basilicum var.purpurascens
soil salinity
essential oil
eugenol
linalool
Źródło:
International Agrophysics; 2010, 24, 2; 183-188
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil Salinity Monitoring and Quantification Using Modern Techniques
Autorzy:
Al-Khuzaie, Marwah M.
Abdul Maulud, Khairul Nizam
Mohd Taib, Aizat
Powiązania:
https://bibliotekanauki.pl/articles/2202207.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
salinity
GIS
soil salinity indicator
regression model
Opis:
Along with sea-level rise, one of the most detrimental effects of climate change, is salinity leakage, which significantly affects agricultural activities throughout most of the world. This occurrence is becoming increasingly dangerous. The purpose of this study was to use Geographical Information Systems (GIS) to assess the current situation of agricultural lands in the province of Al-Diwaniyah, by employing GIS to document the salt-affected sites and arrive at the most important criteria affecting those lands as well as build an application model for suitability to clarify the affected sites and come up with paper and digital maps. To accomplish this, the study relied on the available data by extrapolating and analyzing remote sensing images using salt equations to analyze the Landsat 8 satellite images, after which these data were subjected to spatial statistical treatment in ArcGIS software. Moreover, 20 samples were taken from ground sampling points and subjected to laboratory analysis to compare and document the results. The research resulted in the creation of an up-to-date database for the locations of salt ratio growth or decrease in the province of Al-Diwaniyah, which can be relied on, starting from and expanding in the future. Land maps, both paper and digital, have been created and can be used and inferred. The findings demonstrated the model’s ability to steadily discriminate among all salinity groups while maintaining consistency with the ground truth data. Each of the four major salinity categories was highlighted. The best-performing indicators were used to build the MLR model, which was then used to anticipate soil salinity. The salt levels may be determined by the MLR combining NDVI and SI-5 with a high correlation value (R2 = 75.29%). Finally, it is shown that by combining spectral indicators with field measurements, it is possible to chart and forecast soil salinity on a large scale.
Źródło:
Journal of Ecological Engineering; 2022, 23, 11; 57--67
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przyrodniczy wskaźnik zasolenia gleby
Natural indicator of soil salinity
Autorzy:
Widłak, M.
Powiązania:
https://bibliotekanauki.pl/articles/126621.pdf
Data publikacji:
2016
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
gleba mineralna
odczyn gleby
pierwiastki glebowe
skutki zasolenia gleby
wskaźnik zasolenia
mineral soil
soil pH
soil elements
soil salinity effects
natural salinity indicator
Opis:
Celem pracy była ocena zawartości sodu i potasu w wybranych glebach woj. świętokrzyskiego. W związku z narastającym problemem zasolenia gleby, w kontekście uprawy roślin, został wyznaczony przyrodniczy wskaźnik zasolenia. Zasolenie gleby negatywnie wpływa na wszystkie procesy życiowe organizmów roślinnych, ograniczając pobieranie składników pokarmowych i wody. Badaniami objęto 10 gmin województwa świętokrzyskiego o zróżnicowanej kwasowości gleby w warstwie mineralnej. Z przeprowadzonych badań wynika, że w glebie badanych obszarów występuje podwyższone stężenie sodu, które prowadzi do zastępowania potasu w roślinie. Wykorzystując wskaźnik zasolenia, określony przez iloraz zawartości sodu do potasu (Na/K), można wskazać skutki braku właściwego napowietrzenia systemu korzeniowego i przyswajalności składników pokarmowych przez rośliny.
The aim of the study was to evaluate sodium and potassium content in selected soils of Swietokrzyskie province. Due to the growing problem of soil salinity in the context of growing plants, the natural indicator of salinity has been determined. The soil salinity adversely affects all life processes of plant organisms limiting nutrient and water uptake. The study involved 10 municipalities of Swietokrzyskie province with varying acidity of the soil in the mineral layer. The study shows that the tested soil areas have an increased concentration of sodium, which leads to substitution of potassium in the plant. Using the indicator of salinity defined by the quotient of sodium to potassium (Na/K) may indicate the effects of lack of proper aeration of root system and nutrients assimilation by plants.
Źródło:
Proceedings of ECOpole; 2016, 10, 1; 359-365
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mapping of Cornfield Soil Salinity in Arid and Semi-Arid Regions
Autorzy:
Smanov, Zhassulan Maratuly
Laiskhanov, Shakhislam Uzakbaevich
Poshanov, Maksat Nurbaiuly
Abikbayev, Yerzhan Rakhimkeldievich
Duisekov, Saken Nurzhanuly
Tulegenov, Yerdaulet Askarbekovich
Powiązania:
https://bibliotekanauki.pl/articles/2202333.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
soil salinization
satellite image
vegetation indice
regression analysis
mapping of soil salinity
Opis:
Soil salinization and their annual increase in volume is not only one of the main problems of arid and subarid regions, but it is becoming global. Studying the problem of salinization and its spatial distribution using operational remote sensing methods is very important for Kazakhstan, where almost half of the agricultural land is exposed to salinization, but it is at the initial stage of development in the use of space technologies of research. The main goal of this study is to conduct a field study of soil salinity in corn fields, one of the most common crops in the arid region of the country, located in the Shaulder irrigated massif, using space-based methods, and to create algorithms for compiling a salinity map based on remote sensing data. For this purpose, firstly, using Sentinel-2 images, the method of separating corn from other dominant crops in the region by creating NDVI dynamics covering all phases of growth of agricultural crops was shown. Then, a regression analysis was performed on soil and vegetation indices calculated using satellite images and data on soil salinity obtained through field studies. As a result of the analysis, the main predictor of deciphering salinized soils was determined. By dividing the predictive image into quartiles, contours of salinized soils were determined and a soil salinity map was created. With the help of the soil salinity map, it was found that, non-saline soils – 2912.2 ha; slightly saline soils – 3288.4 ha, moderately saline soils – 2615.2 ha, and strongly saline soils – 1284.3 ha in the study area.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 146--158
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physiological responses of wheat and bean to soil salinity at low matric suctions
Autorzy:
Khatar, M.
Mohammadi, M.H.
Shekari, F.
Powiązania:
https://bibliotekanauki.pl/articles/24475.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
The effect of soil matric suction (2-33 kPa) and salinity (soil solution electrical conductivity 0.7-8 dS m-1 for bean and 2-20 dS m-1 for wheat) on some physiological characteristics of bean and wheat in a clay loam soil under greenhouse condition was investigated. The results showed that the leaf chlorophyll content index and potassium concentration decrease under salinity stress and increase with matric suction from 2 to 33 kPa suction for both plants. The wheat chlorophyll content index declines during the stress spell but bean chlorophyll content index remains nearly constant. The lowest values of the content of soluble sugars and the highest values of leaf proline content are observed at 2 kPa matric suction (highest aeration stress) for bean and wheat. As matric suction increases from 2 to 6 kPa, the soluble sugars increases and proline content decreases significantly and then soluble sugars decreases and proline content increases until 10 kPa suction, and the soluble sugars remains nearly constant at the higher matric suctions for both plants. While the electrical conductivity effect on the soluble sugars is not significant, the values of proline content for both crop increase significantly with electrical conductivity. It was shown that the aeration stress can result in more considerable and rapid physiological responses, in comparison with salinity stress. There is a strong correlation between wheat and bean chlorophyll content index and potassium concentration under salinity and aeration stresses.
Źródło:
International Agrophysics; 2017, 31, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Change on detection of vegetation cover and soil salinity using GIS technique in Diyala Governorate, Iraq
Autorzy:
Adeeb, Haneen Q.
Al-Timimi, Yaseen K.
Powiązania:
https://bibliotekanauki.pl/articles/35519874.pdf
Data publikacji:
2021
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
differencing image
normalized difference
vegetation index
NDVI
salinity index
GIS
Iraq
Opis:
Soil salinity is one of the most important problems of land degradation, that threatening the environmental, economic and social system. The aim of this study to detect the changes in soil salinity and vegetation cover for Diyala Governorate over the period from 2005 to 2020, through the use of remote sensing techniques and geographic information system. The normalized difference vegetation index (NDVI) and salinity index (SI) were used, which were applied to four of the Landsat ETM+ and Landsat OLI satellite imagery. The results showed an increase in soil salinity from 7.27% in the period 2005–2010 to 27.03% in 2015–2020, as well as an increase in vegetation from 10% to 24% in the same period. Also the strong inverse correlation between the NDVI and the SI showed that vegetation is significantly affected and directly influenced by soil salinity changes
Źródło:
Scientific Review Engineering and Environmental Sciences; 2021, 30, 1; 148-158
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil Salinity Classification Using Machine Learning Algorithms and Radar Data in the Case from the South of Kazakhstan
Autorzy:
Merembayev, Timur
Amirgaliyev, Yedilkhan
Saurov, Sultan
Wójcik, Waldemar
Powiązania:
https://bibliotekanauki.pl/articles/2202157.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
environmental correlation
soil salinity
machine learning
remote sensing
Opis:
Soil salinity is one of the major impact factors on agriculture in the South of Kazakhstan. Prediction and estimation of soil salinity before planting a season usually helps to plan for the leaching of the salt. In the paper, satellite data such as radar data and machine learning algorithms, were used to classify soil salinity. Numerical results were presented for the Turkestan region, which contains more than 102 points. The machine learning algorithms, including Gaussian Process, Decision Tree, and Random Forest, were compared. The evaluation of the model score was realized by using metrics, such as accuracy, Recall, and f1. In addition, the influence of the dataset features on the classification was investigated using machine learning algorithms. The research results showed that the Gaussian Process model has the best score among considered algorithms. In addition, the results are consistent with the outcome of the Shapley Additive exPlanations (SHAP) framework.
Źródło:
Journal of Ecological Engineering; 2022, 23, 10; 61--67
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zasolenie gleby wyznaczane sensorami FDR działającymi w zmiennej częstotliwości
Soil salinity determined by FDR sensors working in variable frequency
Autorzy:
Wilczek, A.
Skierucha, W.
Janik, G.
Cieśla, J.
Pichler, V.
Powiązania:
https://bibliotekanauki.pl/articles/338288.pdf
Data publikacji:
2012
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
metrologia agrofizyczna
reflektometria częstotliwościowa
sondy reflektometryczne
wilgotność gleby
zasolenie gleby
agro-physical metrology
frequency reflectometry
reflectometric probe
soil moisture
soil salinity
Opis:
Pomiar zasolenia gleby jest dokładnie opisany w literaturze, zwłaszcza przez autorów zajmujących się badaniem parametrów fizykochemicznych gleby w rejonach zagrożonych suszą. Zasolenia gleby, rozumianego jako elektryczna konduktywność ekstraktu roztworu glebowego, nie można zmierzyć w sposób selektywny. Wynika to z faktu, że na pomiar wpływa nie tylko zawartość soli w postaci rozpuszczonych jonów, ale także wilgotność gleby, temperatura i tekstura. Zatem pomiar poziomu zasolenia gleby, szczególnie w warunkach polowych, nadal wymaga prac związanych z metodyką oraz stosowaną aparaturą pomiarową. Idealny miernik zasolenia gleby powinien mierzyć chwilowe wartości wszystkich elementów istotnie wpływających na wynik pomiaru, w tym samym czasie i w tym samym miejscu. Zastosowanie sensorów dielektrycznych, tj. sensorów działających w technice TDR (ang. "time domain reflectometry") (TOPP i in. 1980) i FDR (ang. "frequancy domain reflectometry") (HILHORST, DIRKSEN 1994), umożliwiło integrację czujników wilgotności, przewodnictwa elektrycznego i temperatury gleby w jednym urządzeniu pomiarowym. W artykule przedstawiono elektryczny model sensora FDR, działającego w zakresie częstotliwości od 10-500 MHz, przeznaczonego do pomiaru stanu zasolenia gleby, określonego jako pochodna cząstkowa jej przewodnictwa elektrycznego w stosunku części rzeczywistej zespolonej przenikalności elektrycznej. Jego innowacyjność polega na zastosowaniu szerokiego zakresu częstotliwości pomiaru w celu identyfikacji czynników wpływających na zasolenie gleby, objawiających się w różny sposób przy zmianie częstotliwości sygnału badanego.
Measurement of salinity of the soil is thoroughly described in the literature, especially by authors dealing with the examination of physicochemical parameters of soil in areas threatened by drought. Soil salinity, treated as electrical conductivity of the soil solution, can't be measured in a selective way. This follows from the fact that on the measurement has influence not only the salt content in the form of dissolved ions, but also soil moisture, temperature and texture. Thus, measurement of soil salinity, especially in field conditions require continued work on the methodology and measuring apparatus used. The ideal meter of soil salinity should be measured instantaneous values of all elements of significantly affecting the measurement result, at the same time and same place. The use of dielectric sensors working in the time and frequency domain reflectometry method, opened up new opportunities to integrate measurement sensors of humidity, electrical conductivity and soil temperature in one device. The article presents the electrical model of the FDR sensor designed to measure the salinity of soil as a partial derivative its electrical conductivity to relative real part of complex dielectric permittivity, working in the frequency range from 10-500 MHz. His innovation is to use a wide range of measuring frequency in order to identify factors influencing the soil salinity observed by changing the test frequency.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2012, 12, 2; 341-349
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Earth observation and geospatial techniques for soil salinity and land capability assessment over Sundarban Bay of Bengal Coast, India
Autorzy:
Das, S.
Choudhury, M. R
Nagarajan, M.
Powiązania:
https://bibliotekanauki.pl/articles/145537.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
właściwości gleby
teledetekcja
dane satelitarne
Landsat
GIS and Remote Sensing
kriging
soil properties
land capability
Opis:
To guarantee food security and job creation of small scale farmers to commercial farmers, unproductive farms in the South 24 PGS, West Bengal need land reform program to be restructured and evaluated for agricultural productivity. This study established a potential role of remote sensing and GIS for identification and mapping of salinity zone and spatial planning of agricultural land over the Basanti and Gosaba Islands(808.314sq. km) of South 24 PGS. District of West Bengal. The primary data i.e. soil pH, Electrical Conductivity (EC) and Sodium Absorption ratio (SAR) were obtained from soil samples of various GCP (Ground Control Points) locations collected at 50 mts. intervals by handheld GPS from 0–100 cm depths. The secondary information is acquired from the remotely sensed satellite data (LANDSAT ETM+) in different time scale and digital elevation model. The collected field samples were tested in the laboratory and were validated with Remote Sensing based digital indices analysisover the temporal satellite data to assess the potential changes due to over salinization. Soil physical properties such as texture, structure, depth and drainage condition is stored as attributes in a geographical soil database and linked with the soil map units. The thematic maps are integrated with climatic and terrain conditions of the area to produce land capability maps for paddy. Finally, The weighted overlay analysis was performed to assign theweights according to the importance of parameters taken into account for salineareaidentification and mapping to segregate higher, moderate, lower salinity zonesover the study area.
Źródło:
Geodesy and Cartography; 2016, 65, 2; 163-192
2080-6736
2300-2581
Pojawia się w:
Geodesy and Cartography
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining bulk electrical conductivity of soil from attenuation of electromagnetic pulse
Autorzy:
Malicki, M.A.
Kokot, J.
Skierucha, W.M.
Powiązania:
https://bibliotekanauki.pl/articles/26177.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
electromagnetic pulse
electrical conductivity
soil
soil salinity
Źródło:
International Agrophysics; 1998, 12, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie wpływu zasolenia gleby na wzrost i rozwój wybranych gatunków roślin
Study of soil salinity on growth and advancementof selected plants species
Autorzy:
Małuszyńska, I.
Małuszyński, M. J.
Powiązania:
https://bibliotekanauki.pl/articles/399659.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
zasolenie gleby
gatunki roślin
soil salinity
plant species
Opis:
Celem badań było określenie wpływu zasolenia gleby na wzrost i rozwój wybranych gatunków roślin. Do badań wytypowano dwa gatunki z rodziny traw: kupkówkę pospolitą (Daetylis glomerata L.), życicę wielokwiatową (Lolium multijlorum L.) oraz dwa z rodziny motylkowatych: koniczynę łąkową (Trifolium pratense L.), wykę siewną (Vicia sativa L.). Warunki rozwoju roślin zostały zróżnicowane poprzez wprowadzenie zasolenia na poziomie O, 2, 6, 12 i 20 mS' cm-l w temp. 25°C. Dla większości kombinacji zaobserwowano obniżenie przyrostu biomasy pod wpływem zasolenia gleby u wszystkich badanych roślin. Badania wykazały, że zastosowane trawy są bardziej tolerancyjne na zasolenie niż wybrane motylkowate. Wyniki badań pozwoliły na określenie, iż z roślin należących do rodziny traw nieznacznie bardziej tolerancyjna na zasolenie jest życica wielokwiatowa. Spośród motylkowatych większą tolerancją wykazała się wyka siewna, mniejszą koniczyna łąkowa.
The aim of this research was to determine the effect of soil salinity on growth and advancement of selected plant species. Two species of Poaceae and two species of Fabaceae were chosen to conduct the research. The conditions of plants growth were diversified through introduction of salinity at levels 0, 2, 6, 12 i 20 mS źcm-I. For the majority of combinations of researched plants the reduction of biomass accumulation caused by the soil salinity was observed. The results showed that the Poaceae were more tolerant to soil salinity than Fabaceae. The research results show that Lolium multiflorum L., were more tolerant to soil salinity than Dactylis glomerata L .. Out of Fabaceae Vicia sativa L. showed greater tolerance than Trifolium pretense L..
Źródło:
Inżynieria Ekologiczna; 2009, 21; 32-39
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the soil quality in the vicinity of Inowrocław soda plants
Autorzy:
Wiatrowska, K. M.
Komisarek, J.
Marcinek, J.
Kozłowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/204779.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heavy metals
soil salinity
dehydrogenases activity
soil quality activity
Opis:
The aims of this study were to assess the quality of soils affected by strongly saline waste products and to analyze the spatial distribution pattern of soil properties influenced by a soda plant. Soil samples were analyzed for electrical conductivity (EC), sodium adsorption ratio (SAR), pH, trace element content and dehydrogenases activity. The research was conducted in the vicinity of the waste ponds of the Ciech Soda Poland S.A. company (Central Poland), where 35 groundwaters, 63 surface (0–20 cm) and 60 subsurface (80–100 cm) samples were collected. Although the waste ponds are currently not used for regular disposal of waste products, a high level of salinity of groundwater and soil, especially in the subsurface layer, is still being observed. The electrical conductivity of soil saturation extract (ECse) values varied between 0.9–15.4 and 1.0–87.2 dS·m-1 for surface and subsurface layer, respectively. Analysis of the spatial distribution of soil salinity reveals a correlation with microrelief and groundwater levels. Maps of the spatial distribution of heavy metals showed that their content in the subsurface layer was a result of chemical migration from the waste ponds, and in the surface layer by other sources (atmospheric deposition). The soil salinity did not influence dehydrogenases activity.
Źródło:
Archives of Environmental Protection; 2018, 44, 3; 58-67
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of de-icing roads with salt on the environment in Krakow (Poland)
Autorzy:
Kostka, Anna
Strzebońska, Magdalena
Sobczyk, Maciej
Zakrzewska, Marta
Bochenek, Anna
Powiązania:
https://bibliotekanauki.pl/articles/184651.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Krakow
soil salinity
road salt
winter road maintenance
Opis:
The de-icing of roads and streets in the winter season is a necessity in many European countries, where the mean day temperature drops below 0°C for long periods. Among the many chemicals used for winter road maintenance, the most popular in Poland is sodium chloride in various forms and mixtures, due to its relatively low price and availability. This agent, however, contributes to the increase of salinity in the soil environment and may lead to disturbances in soil properties and premature plant necrosis. The impact of the usage of chloride salts on the soil environment was researched in Krakow’s city centre by means of the examination of soil samples collected prior to the de-icing season (November) and afterwards (February) as well as snow samples taken in February. A general deterioration of the examined parameters (pH, conductivity, chloride concentrations, carbonate concentrations) was observed after the winter season, but still the results for most samples did not pose a serious threat to the soil environment or plants. This was mainly the result of the fact that the winter seasons in European countries have become increasingly mild and warm, which contributes to decreased usage of chloride salts. However, the state of soils in the Main Square was disturbing, as demonstrated by the clearly elevated chemical parameters of samples, despite a ban on the use of salt in this area. These results indicate the most probable reason for the withering of trees growing there, leading to them being frequently replaced.
Źródło:
Geology, Geophysics and Environment; 2019, 45, 3; 195-205
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Influence of Rhizophagus irregularis Inoculation on Salt Tolerance in Cucurbita maxima Duch.
Autorzy:
Okon, Okon Godwin
Okon, Iniobong Edet
Powiązania:
https://bibliotekanauki.pl/articles/1112334.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Arbuscular
Cucurbita maxima
Mycorrhizal
Rhizophagus irregularis
Salinity
Soil Salinity
Stress
Opis:
The influence of mycorrhizal fungi (Rhizophagus irregularis) on salt tolerance of Cucurbita maxima grown in saline soil was investigated in a pot experiment. The experiment was laid out in a completely randomized design, with treatments replicated thrice. Accordingly, soil salinity significantly (p=0.05) reduced total photosynthetic pigments from 58.06 to 38.06 mg/kg. Mineral contents, biomass yield, AMF colonization were also significantly (p=0.05) reduced. In contrast, mycorrhizal dependency was significantly (p=0.05) increased in saline soil plants (from 26.91% to 66.45%). Furthermore, inoculation with R. irregularis significantly (p=0.05) increased total photosynthetic pigments from 58.06 to 62.06 mg/kg; N from 4.88 to 5.47%; P 860.40 to 896.22 mg/kg; K 4430.00 to 4630.00 mg/kg; Mg 558.99 to 592.10 mg/kg and Ca 2810.00 to 3151.00 mg/kg; biomass yield; leaf dry weight from 0.06 to 0.14g; vine dry weight 3.68 to 5.09g; roots dry weight 0.32 to 0.74 and total dry weight 4.06 to 5.97g, R. irregularis colonization (from 33.77 to 58.44%) and mycorrhizal dependency in C. maxima was evident in both saline and non-saline soil treatments. The results of this work shows that R. irregularis can enhance the ability of C. maxima to resist salt stress - possibly through some morphological/ physiological changes, as well as improved vigour, probably via the extensive network of the mycorrhizal roots. This last is considered to be one of several mechanisms that magnify the salt tolerance of host plants through increased nutrient acquisition (N, P, K, Mg and Ca) and water uptake. Inoculation with appropriate AMF can, therefore, be used to increase the productivity of C. maxima in saline soils.
Źródło:
World News of Natural Sciences; 2018, 19; 108-117
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 74

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