rmelkhatib

أ. د. رأفت محمد أحمد محمد أحمد الخطيب

استاذ - أستاذ بقسم الكيمياء

كلية العلوم

العنوان: قسم الكيمياء - كلية العلوم - جامعة سوهاج

7

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية:


2018-11-18 14:28:53 الكلمات المفتاحية Side Effects, , insecticides, , Natural Enemies, , Plant Protection, ,
Chapter Title: Side Effects of Insecticides on Natural Enemies and Possibility of Their Integration in Plant Protection Strategies.
Recently, plant protection strategy has recommended, minimizing the use of chemical pesti11 cides. Therefore, studying the side effect of insecticides on the natural enemies is highly re12 quired to exclude the detrimental effects on the natural enemies. Every crop is infested by 13 various pests; some but not all of them may be controlled by biological means using patho14 gens, ... إقراء المزيد

2018-11-18 14:28:53 الكلمات المفتاحية Side Effects, , insecticides, , Natural Enemies, , Plant Protection, ,
Chapter Title: Side Effects of Insecticides on Natural Enemies and Possibility of Their Integration in Plant Protection Strategies.
Recently, plant protection strategy has recommended, minimizing the use of chemical pesti11 cides. Therefore, studying the side effect of insecticides on the natural enemies is highly re12 quired to exclude the detrimental effects on the natural enemies. Every crop is infested by 13 various pests; some but not all of them may be controlled by biological means using patho14 gens, ... إقراء المزيد

2018-11-18 14:33:36 الكلمات المفتاحية repellent, , antifeedent, , plant extracts, , Spodoptera littoralis,
Repellent, Antifeedent and Toxic Effects of Certain Plant Extracts on Cotton Leafworm, Spodoptera littoralis Boisd.
Two plants, i.e. Anthemis melanopodia and Artemesia monosperma were tested against the 4th instars larvae of Spodoptera littoralis (Boisd.) under laboratory conditions. Four crude extracts (Hexane, Chloroform, Ethyl acetate and Ethanol) from each of the two plants used were evaluated by two different technique, i.e. residual films and dipping. Results indicated different percentage of mortality in larval depending on the ... إقراء المزيد

2018-11-18 14:33:36 الكلمات المفتاحية repellent, , antifeedent, , plant extracts, , Spodoptera littoralis,
Repellent, Antifeedent and Toxic Effects of Certain Plant Extracts on Cotton Leafworm, Spodoptera littoralis Boisd.
Two plants, i.e. Anthemis melanopodia and Artemesia monosperma were tested against the 4th instars larvae of Spodoptera littoralis (Boisd.) under laboratory conditions. Four crude extracts (Hexane, Chloroform, Ethyl acetate and Ethanol) from each of the two plants used were evaluated by two different technique, i.e. residual films and dipping. Results indicated different percentage of mortality in larval depending on the ... إقراء المزيد

2018-11-18 14:33:36 الكلمات المفتاحية repellent, , antifeedent, , plant extracts, , Spodoptera littoralis,
Repellent, Antifeedent and Toxic Effects of Certain Plant Extracts on Cotton Leafworm, Spodoptera littoralis Boisd.
Two plants, i.e. Anthemis melanopodia and Artemesia monosperma were tested against the 4th instars larvae of Spodoptera littoralis (Boisd.) under laboratory conditions. Four crude extracts (Hexane, Chloroform, Ethyl acetate and Ethanol) from each of the two plants used were evaluated by two different technique, i.e. residual films and dipping. Results indicated different percentage of mortality in larval depending on the ... إقراء المزيد

2018-11-19 20:35:25 الكلمات المفتاحية , Physiological responses, Ankistrodesmus falcatus, Chlorella vulgaris,
Comparison between the Physiological Responses of Ankistrodesmus Falcatus and Chlorella Vulgaris to Copper
The physiological and biochemical responses of two green algae Ankistrodesmus falcatus and Chlorella vulgaris to copper sulphate were investigated. In this experiment both Ankistrodesmus and Chlorella cultures were treated with copper sulphate concentrations ranging from 0. 5 to 250 µM. The influence of copper on growth and metabolism was determined. Ankistrodesmus grown at 250 µM copper sulphate, while Chlorella grown ... إقراء المزيد

2018-11-19 20:32:09 الكلمات المفتاحية Expansive soil, , Qena, , Swelling Pressure,
Geotechnical Properties of Expansive Clay Shale in El-Mahrowsa, Qena, Egypt
This study aims to investigate the geotechnical properties of expansive clay shale in El-Mahrousa region, Qena, Egypt. For this purpose, two sites were chosen and three undisturbed samples were taken within the active zone at depths 1.0 m, 2.0 m and 3.0 m below the ground surface for each site. Different laboratory tests were carried out including, natural water content, ... إقراء المزيد

2018-11-19 20:32:09 الكلمات المفتاحية Expansive soil, , Qena, , Swelling Pressure,
Geotechnical Properties of Expansive Clay Shale in El-Mahrowsa, Qena, Egypt
This study aims to investigate the geotechnical properties of expansive clay shale in El-Mahrousa region, Qena, Egypt. For this purpose, two sites were chosen and three undisturbed samples were taken within the active zone at depths 1.0 m, 2.0 m and 3.0 m below the ground surface for each site. Different laboratory tests were carried out including, natural water content, ... إقراء المزيد

2018-11-19 20:39:54 الكلمات المفتاحية Expansive soils., Sand compaction piles, , Replacement area ratio, ,
Effect Of Sand Compaction Piles on the Behavior of Expansive Soil Mohammed M. A. Hussei
One of the most common mitigation heave methods for foundation on expansive clay soil is the full or the partial shallow removal of expansive clay soil and replacement with non-expansive soil, usually used sand cushion (SC). Foundation engineers often suggest some arbitrary thickness for sand cushion without considering the depth of the active zone, which is the zone within which ... إقراء المزيد

2018-11-19 20:39:54 الكلمات المفتاحية Expansive soils., Sand compaction piles, , Replacement area ratio, ,
Effect Of Sand Compaction Piles on the Behavior of Expansive Soil Mohammed M. A. Hussei
One of the most common mitigation heave methods for foundation on expansive clay soil is the full or the partial shallow removal of expansive clay soil and replacement with non-expansive soil, usually used sand cushion (SC). Foundation engineers often suggest some arbitrary thickness for sand cushion without considering the depth of the active zone, which is the zone within which ... إقراء المزيد