Climate

El-Marsafawy, Samia M.; Bakr, Noura; Elbana, Tamer A.; El-Ramady, Hassan

doi:10.1007/978-3-319-95516-2_5

Cited by 12 publications

(5 citation statements)

References 95 publications

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“…The minimum mean air temperature occurs in January (13 • C) whereas the maximum mean value occurs in August (29.3 • C). In the same months, the relative air humidity is 57% and 43%, respectively [31].…”

Section: Study Areamentioning

confidence: 99%

Assessment and Mapping of Soil Salinization Risk in an Egyptian Field Using a Probabilistic Approach

2020

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The assessment of soil salinization risk at the field scale requires modeling of the spatial variability of soil salinity. This paper presents a probabilistic approach to estimate and map a risk index using all available auxiliary information. A probabilistic methodology is proposed to estimate the conditional probability of exceeding the assigned threshold value of a generic indicator of soil salinity. A geostatistical non-parametric technique, probability kriging, was used to assess the risk of soil salinization and delineate different hazard zones within a field. The technique relies on indicator coding of information. The approach was applied to soil electrical conductivity measurements collected in an experimental field located in the Nile Delta region in Egypt, and submitted over time to trials with different fertilization treatments. The application of the method allowed delineation of a north-eastern zone in the field with a high risk of soil salinization due to its lack of cultivation for a long time and nearness to buildings that prevent water infiltration. The method proved to be quite promising from the perspective of precision agriculture and it is easily extendable to any sort of remote and proximal sensing auxiliary information, including information on the deepest layers of soil.

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Section: Study Areamentioning

confidence: 99%

Assessment and Mapping of Soil Salinization Risk in an Egyptian Field Using a Probabilistic Approach

2020

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“…In the selected study sites, local maize varieties (Indigo Corn ™ seeds) were planted in small fields of about half to two (½-2) Feddan (Feddan = 4200 m 2 ). In the surveyed areas, maize was grown under irrigation, with the average climatic conditions of 23% relative humidity and 24.6 °C as minimum temperature and 39 °C as maximum temperature (El-Marsafawy et al 2019). Moreover, pesticide application was stopped at least 1 month post-planting in all the surveyed fields, a strategy which ensured that the population of the natural existing egg parasitoids build up in the fields and the egg laying of S. frugiperda and parasitism by natural enemies were not affected.…”

Section: Study Areamentioning

confidence: 99%

First report of Telenomus remus Nixon (Hymenoptera: Scelionidae) on Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Egypt

El-Gepaly,

Mohamed,

Obala

et al. 2024

Egypt J Biol Pest Control

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Background The polyphagous alien invasive pest, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), invaded Africa and has so far spread across the continent, causing devastating impacts on maize production. In Egypt, the management of the pest by maize growers has been characterized by the application of broad-spectrum synthetic chemical insecticides, a strategy which is associated with various detrimental effects on the environment and human health. To mitigate the overreliance and excessive use of those synthetic chemicals, biological control using egg parasitoids species provides an ecologically friendly and sustainable management strategy. In that regard, this study had the objective of identifying the natural existing egg parasitoids, which could be effectively used in augmentative biocontrol of the pest in Egypt. Results For the first time in Egypt, natural occurrence and parasitism of Telenomus remus Nixon, 1937 (Hymenoptera: Scelionidae) on S. frugiperda egg masses was recorded. Infested maize farms in Qena Governorate, Egypt, were surveyed, and S. frugiperda egg masses were collected and incubated in the laboratory. Emerging parasitoids’ wasps were grouped based on their morphological similarities. Natural parasitism of the egg parasitoids (Telenomus sp.) was computed from the parasitized field collected egg masses. In addition, to confirm the laboratory parasitism and suitability of the parasitoid, Telenomus sp. to develop on S. frugiperda, the parasitoid was reared on S. frugiperda egg masses for three generations under laboratory conditions. Moreover, both morphological and molecular identifications were conducted. The recovered parasitoid samples from the field S. frugiperda egg masses were Telenomus remus (Nixon) (Hymenoptera: Scelionidae). Moreover, the average field parasitism level by T. remus on S. frugiperda was 15.9%, while under laboratory conditions, the parasitism was 63.5%. Conclusions The natural occurrence of T. remus in Egypt and its association with S. frugiperda is an important finding upon which augmentative biocontrol strategy can be leveraged on to sustainably manage the pest populations.

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“…The weather of this area shows an average maximum air temperature of 41°C. The distribution of maximum temperature has significantly varied over the last three decades and the reports revealed that the average of the relative humidity (RH%) in Aswan is found to be 66.1±1.2% and 25.2±8.2% [15].…”

Section: Meteorological Datamentioning

confidence: 99%

A Comparative Analytical Study of Some Deterioration Products Formed on the Sandstone Reliefs of Edfu and Kom Ombo Temples

Magdy Abdullah,

Adam,

Marey Mahmoud

2023

Advanced Research in Conservation Science

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 The weathering mechanisms affecting both Edfu and Kom Ombo temples were studied and evaluated.  Optical and polarized light microscopes, scanning electron microscopy equipped by EDX unit (SEM-EDX) and X-ray diffraction analysis (XRD) were used to study the stone and the formed deterioration products. Among the common deterioration products that were previously detected on Egyptian monuments, new products were reported.

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Climate

Cited by 12 publications

References 95 publications

Assessment and Mapping of Soil Salinization Risk in an Egyptian Field Using a Probabilistic Approach

Assessment and Mapping of Soil Salinization Risk in an Egyptian Field Using a Probabilistic Approach

First report of Telenomus remus Nixon (Hymenoptera: Scelionidae) on Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Egypt

A Comparative Analytical Study of Some Deterioration Products Formed on the Sandstone Reliefs of Edfu and Kom Ombo Temples

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