Mohamed El-Fouly | National Research Centre (2025)

The user has requested enhancement of the downloaded file. All in-text references underlined in b... more The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.

Improving Growth and Nutrient Content of Maize and Cotton Plants through Magnesium Nitrate Foliar Fertilization

American Journal of Plant Nutrition and Fertilization Technology, 2013

International Journal of Agricultural Research, 2006

A water culture experiment was carried out in the Department of Fertilization Technology at Natio... more A water culture experiment was carried out in the Department of Fertilization Technology at National Research Centre, Cairo, Egypt, to investigate the effect of Ascorbic Acid (AsA) foliar application and salinity stress (100 ppm and 100 mmoL NaCl) on growth, nutrients concentration and some biochemical parameters of two kidney bean (Phaseulus Vulgaris L.) cultivars. Salinity caused significant reduction in growth parameters (leaves and root dry weights) and some of biochemical parameters (nutrients concentration, photosynthesis pigment, Carbonic Anhydrase Activity (CAA), antioxidant enzyme activity Peroxidase (POD) and lipid peroxidation). The reduction effect on Paulista cultivar was higher than Nebraska cultivar at 100 mM NaCl salinity stress. Meanwhile, POD activity was increased under salt stress conditions. Lipid Peroxidation (LP) under 100 mmoL NaCl salinity was significantly increased. The two cultivars showed an increase in MDA content with NaCl salinity stress, but the increase in sensitive cultivars Paulista was higher than that in salt-tolerant Nebraska cultivar. Application of (AsA) not only mitigated the inhibitory effect of salt stress in both kidney bean cultivars, but also in some cases induced a stimulatory effect greater than that estimated in the control plants on growth parameters which were accompanied by marked increases in nutrients concentration and photosynthetic system (pigments and carbonic anhydrase activity). Ascorbic Acid (AsA) has been shown to be an essential antioxidant; agent may act as a scavenger of ROS for mitigating the injury on bio-membranes under salt stress. Therefore, this study suggested that (AsA) application may induce an adaptive response in kidney bean through stimulation of the antioxidant enzymes activities, photosynthesis processes and lower lipid peroxidation, in Nebraska relative to Paulista may contribute to salt tolerance mechanism in Nebraska.

Groundnut (Arachishypogaea L.) is one of the most important leguminous crops. The groundnut seed ... more Groundnut (Arachishypogaea L.) is one of the most important leguminous crops. The groundnut seed contains about 45 to 50% oil, 25 to 30% digestible protein, 20% carbohydrate and 5% fiber and ash which make a substantial contribution to human nutrition. Therefore, the objective of the present study was to improve the growth, yield and yield components as well as nutrient status of groundnut grown on newly reclaimed sandy soil by applying NPK levels as a soil fertilizer alone or combined with foliar feeding of some essential micronutrients and comparing these treatments with rates based on soil testing. Summer field experiment was carried out in Ismailia Training Center, Ismailia governorate, during the growing seasons 2009 and 2010 to explore the effects of different NPK treatments on growth, yield and nutrients uptake of groundnut (Arachis hypogea, L. cv. Giza 6), grown on an irrigated loamy sand under a wheat-groundnut cropping system. Six NPK combinations were tested in the first season, while one more treatment was added in the second season as control treatment. The obtained results indicated that the NPK doses based on soil testing improved all yield components and resulted in improving nutrient concentrations in peanut leaves which induced significant increase in pods and straw yield as compared to other treatments. Based on two years results, it could be concluded that, application of NPK based on soil testing plus micronutrient foliar spray might be the best for crop nutrient status, seeds yield and its components and seed protein content.

Response of faba bean genotypes to low and high zinc levels

Plant Nutrition — Molecular Biology and Genetics, 1999

African Journal of …, 2010

Soil and leaf analyses were used to survey magnesium status of different soils and crops in diffe... more Soil and leaf analyses were used to survey magnesium status of different soils and crops in different governorates of Egypt during the period from 1986 -2006. Results show that large areas in different governorates were suffering from decreasing magnesium content. Mg content of crops grown in new lands is generally lower than of same crops grown in old lands. However, both are in need of adding magnesium to grow crops giving high yields. Mg in cultivated soils decreases year after year. It can be concluded that there is a continuous depletion of magnesium from Egyptian soils and adding magnesium fertilizers would help in sustaining the soil fertility, prevent its deterioration in soils and increase yields without harming the environment.

Tolerence of fababean genotypes to low zinc using carbonic ahhydrase( CA) activity as a screening technique

REVIOUS studies have shown that liquid fertilizers significantly ……. improve crop morphology and ... more REVIOUS studies have shown that liquid fertilizers significantly ……. improve crop morphology and productivity. Pot experiment was conducted in the greenhouse of the Micronutrient Project, Fertilization Technology Department, National Research Centre, Dokki, Cairo, Egypt with wheat (Triticum aestivum L. var. Sids 6) and faba bean (Vicia faba L. var. Giza 716) grown on clay loam soil to study the plants response to magnesium nitrate foliar fertilization. The experiment followed the Randomized Complete Block Design (RCBD) with six treatments in three replicates. The plants sprayed two times with the concentrations 0.0, 2.5, 5.0, 7.5, 10.0 and 12.5 ml.l -1 from 28.76% Mg(NO 3 ) 2 stock solution. Results showed that MgNO 3 foliar fertilization significantly increased fresh weight, dry weight, plant height and root volume of the treated plants. The superior doses were 7.5-10.0 ml.l -1 for wheat and 5.0ml.l -1 for faba bean plants. Magnesium nitrate foliar fertilization found also to significantly increase both concentrations and uptake of almost all determined macro and micronutrients by wheat and faba bean plant organs. Magnesium nitrate foliar application is highly recommended for wheat and faba bean crop plants grown under low soil magnesium levels.

Response of faba bean to Zn deficiency and toxicity was studied in 9 genotypes. Zndeficiency indu... more Response of faba bean to Zn deficiency and toxicity was studied in 9 genotypes. Zndeficiency induced reductions in shoot dry weight except in Giza 3. The negative effect of Zn deficiency on Zn concentration was more pronounced in young leaves than in old ones. Zn concentration in roots was increased and carbonic anhydrase activity (CAA) was decreased in Zn deficient plants. The decrease in CAA was correlated with Zn concentrations in young leaves. Response of CAA at before flowering stage in Giza 3 was not much affected. This genotype proved to be tolerant to Zn-deficiency. In case of Zn-excess, shoot dry weight was reduced. Zn-concentration in young and old leaves were increased. Decreases in CAA were recorded. CAA became unmeasurable at flowering stage, possibly due to protein denaturation.

A water culture experiment was carried out in the Department of Fertilization Technology at Natio... more A water culture experiment was carried out in the Department of Fertilization Technology at National Research Centre, Cairo, Egypt, to investigate the effect of Ascorbic Acid (AsA) foliar application and salinity stress (100 ppm and 100 mmoL NaCl) on growth, nutrients concentration and some biochemical parameters of two kidney bean (Phaseulus Vulgaris L.) cultivars. Salinity caused significant reduction in growth parameters (leaves and root dry weights) and some of biochemical parameters (nutrients concentration, photosynthesis pigment, Carbonic Anhydrase Activity (CAA), antioxidant enzyme activity Peroxidase (POD) and lipid peroxidation). The reduction effect on Paulista cultivar was higher than Nebraska cultivar at 100 mM NaCl salinity stress. Meanwhile, POD activity was increased under salt stress conditions. Lipid Peroxidation (LP) under 100 mmoL NaCl salinity was significantly increased. The two cultivars showed an increase in MDA content with NaCl salinity stress, but the increase in sensitive cultivars Paulista was higher than that in salt-tolerant Nebraska cultivar. Application of (AsA) not only mitigated the inhibitory effect of salt stress in both kidney bean cultivars, but also in some cases induced a stimulatory effect greater than that estimated in the control plants on growth parameters which were accompanied by marked increases in nutrients concentration and photosynthetic system (pigments and carbonic anhydrase activity). Ascorbic Acid (AsA) has been shown to be an essential antioxidant; agent may act as a scavenger of ROS for mitigating the injury on bio-membranes under salt stress. Therefore, this study suggested that (AsA) application may induce an adaptive response in kidney bean through stimulation of the antioxidant enzymes activities, photosynthesis processes and lower lipid peroxidation, in Nebraska relative to Paulista may contribute to salt tolerance mechanism in Nebraska.

Release of P from Natural Syrian Rock Phosphate in Acidic Soils

International Journal of Soil Science, 2006

Peace and Development in Africa: the First African Pugwash Symposium, held in Cairo, Egypt, 4–9 January 1975

Environmental Conservation, 1975

First Expert Meeting on Regional Programmes for Environmental Studies in the Red Sea, held at Jeddah, Saudi Arabia, 25 November-1 December 1974

Environmental Conservation, 1975

Micronutrient Status of Some Food Crops - Increasing Yields Through Micronutrient Foliar Application in Behira/Egypt

Foliar Fertilization, 1986

Flower and Pod Drop

Faba Bean Improvement, 1982

Higher and better yields with less environmental pollution in Egypt through balanced fertilizer use

Fertilizer Research, 1996

... It was mentioned by Abdal-la and Mobarak (1992 a,b) that micronutrient sprays increased NPK a... more ... It was mentioned by Abdal-la and Mobarak (1992 a,b) that micronutrient sprays increased NPK and Mg uptake in shoot, which might be ... NRC-GTZ report 94p (Unpubl.) Fawzi AFA, Firgany AH, Rezk AI, Kishk MA and Shaaban MM (1983) Response of Viciafaba bean to K and ...

Effect of cycocel on amylase and invertase activity in cotton leaves

Growth and Compositional Responses of Cotton Plants Associated with Seed Treatment by Kinetin

Journal of Plant Nutrition and Soil Science, 1971

... Dr. A. T. Heguzy, Botany Laboratory, National Research Center, Dokki-Cairo, ErnPZ. Page 2. He... more ... Dr. A. T. Heguzy, Botany Laboratory, National Research Center, Dokki-Cairo, ErnPZ. Page 2. Hefi 31 Growth and Compositional Responses of Cotton Plants ... I) Austug aus der Dissertation von K. Isermunn, 1969. *) Dr. K. Isermann, 7000 Stuttgart-Hohenheim, Fruwirthstrage 20.

The user has requested enhancement of the downloaded file. All in-text references underlined in b... more The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.

Improving Growth and Nutrient Content of Maize and Cotton Plants through Magnesium Nitrate Foliar Fertilization

American Journal of Plant Nutrition and Fertilization Technology, 2013

International Journal of Agricultural Research, 2006

A water culture experiment was carried out in the Department of Fertilization Technology at Natio... more A water culture experiment was carried out in the Department of Fertilization Technology at National Research Centre, Cairo, Egypt, to investigate the effect of Ascorbic Acid (AsA) foliar application and salinity stress (100 ppm and 100 mmoL NaCl) on growth, nutrients concentration and some biochemical parameters of two kidney bean (Phaseulus Vulgaris L.) cultivars. Salinity caused significant reduction in growth parameters (leaves and root dry weights) and some of biochemical parameters (nutrients concentration, photosynthesis pigment, Carbonic Anhydrase Activity (CAA), antioxidant enzyme activity Peroxidase (POD) and lipid peroxidation). The reduction effect on Paulista cultivar was higher than Nebraska cultivar at 100 mM NaCl salinity stress. Meanwhile, POD activity was increased under salt stress conditions. Lipid Peroxidation (LP) under 100 mmoL NaCl salinity was significantly increased. The two cultivars showed an increase in MDA content with NaCl salinity stress, but the increase in sensitive cultivars Paulista was higher than that in salt-tolerant Nebraska cultivar. Application of (AsA) not only mitigated the inhibitory effect of salt stress in both kidney bean cultivars, but also in some cases induced a stimulatory effect greater than that estimated in the control plants on growth parameters which were accompanied by marked increases in nutrients concentration and photosynthetic system (pigments and carbonic anhydrase activity). Ascorbic Acid (AsA) has been shown to be an essential antioxidant; agent may act as a scavenger of ROS for mitigating the injury on bio-membranes under salt stress. Therefore, this study suggested that (AsA) application may induce an adaptive response in kidney bean through stimulation of the antioxidant enzymes activities, photosynthesis processes and lower lipid peroxidation, in Nebraska relative to Paulista may contribute to salt tolerance mechanism in Nebraska.

Groundnut (Arachishypogaea L.) is one of the most important leguminous crops. The groundnut seed ... more Groundnut (Arachishypogaea L.) is one of the most important leguminous crops. The groundnut seed contains about 45 to 50% oil, 25 to 30% digestible protein, 20% carbohydrate and 5% fiber and ash which make a substantial contribution to human nutrition. Therefore, the objective of the present study was to improve the growth, yield and yield components as well as nutrient status of groundnut grown on newly reclaimed sandy soil by applying NPK levels as a soil fertilizer alone or combined with foliar feeding of some essential micronutrients and comparing these treatments with rates based on soil testing. Summer field experiment was carried out in Ismailia Training Center, Ismailia governorate, during the growing seasons 2009 and 2010 to explore the effects of different NPK treatments on growth, yield and nutrients uptake of groundnut (Arachis hypogea, L. cv. Giza 6), grown on an irrigated loamy sand under a wheat-groundnut cropping system. Six NPK combinations were tested in the first season, while one more treatment was added in the second season as control treatment. The obtained results indicated that the NPK doses based on soil testing improved all yield components and resulted in improving nutrient concentrations in peanut leaves which induced significant increase in pods and straw yield as compared to other treatments. Based on two years results, it could be concluded that, application of NPK based on soil testing plus micronutrient foliar spray might be the best for crop nutrient status, seeds yield and its components and seed protein content.

Response of faba bean genotypes to low and high zinc levels

Plant Nutrition — Molecular Biology and Genetics, 1999

African Journal of …, 2010

Soil and leaf analyses were used to survey magnesium status of different soils and crops in diffe... more Soil and leaf analyses were used to survey magnesium status of different soils and crops in different governorates of Egypt during the period from 1986 -2006. Results show that large areas in different governorates were suffering from decreasing magnesium content. Mg content of crops grown in new lands is generally lower than of same crops grown in old lands. However, both are in need of adding magnesium to grow crops giving high yields. Mg in cultivated soils decreases year after year. It can be concluded that there is a continuous depletion of magnesium from Egyptian soils and adding magnesium fertilizers would help in sustaining the soil fertility, prevent its deterioration in soils and increase yields without harming the environment.

Tolerence of fababean genotypes to low zinc using carbonic ahhydrase( CA) activity as a screening technique

REVIOUS studies have shown that liquid fertilizers significantly ……. improve crop morphology and ... more REVIOUS studies have shown that liquid fertilizers significantly ……. improve crop morphology and productivity. Pot experiment was conducted in the greenhouse of the Micronutrient Project, Fertilization Technology Department, National Research Centre, Dokki, Cairo, Egypt with wheat (Triticum aestivum L. var. Sids 6) and faba bean (Vicia faba L. var. Giza 716) grown on clay loam soil to study the plants response to magnesium nitrate foliar fertilization. The experiment followed the Randomized Complete Block Design (RCBD) with six treatments in three replicates. The plants sprayed two times with the concentrations 0.0, 2.5, 5.0, 7.5, 10.0 and 12.5 ml.l -1 from 28.76% Mg(NO 3 ) 2 stock solution. Results showed that MgNO 3 foliar fertilization significantly increased fresh weight, dry weight, plant height and root volume of the treated plants. The superior doses were 7.5-10.0 ml.l -1 for wheat and 5.0ml.l -1 for faba bean plants. Magnesium nitrate foliar fertilization found also to significantly increase both concentrations and uptake of almost all determined macro and micronutrients by wheat and faba bean plant organs. Magnesium nitrate foliar application is highly recommended for wheat and faba bean crop plants grown under low soil magnesium levels.

Response of faba bean to Zn deficiency and toxicity was studied in 9 genotypes. Zndeficiency indu... more Response of faba bean to Zn deficiency and toxicity was studied in 9 genotypes. Zndeficiency induced reductions in shoot dry weight except in Giza 3. The negative effect of Zn deficiency on Zn concentration was more pronounced in young leaves than in old ones. Zn concentration in roots was increased and carbonic anhydrase activity (CAA) was decreased in Zn deficient plants. The decrease in CAA was correlated with Zn concentrations in young leaves. Response of CAA at before flowering stage in Giza 3 was not much affected. This genotype proved to be tolerant to Zn-deficiency. In case of Zn-excess, shoot dry weight was reduced. Zn-concentration in young and old leaves were increased. Decreases in CAA were recorded. CAA became unmeasurable at flowering stage, possibly due to protein denaturation.

A water culture experiment was carried out in the Department of Fertilization Technology at Natio... more A water culture experiment was carried out in the Department of Fertilization Technology at National Research Centre, Cairo, Egypt, to investigate the effect of Ascorbic Acid (AsA) foliar application and salinity stress (100 ppm and 100 mmoL NaCl) on growth, nutrients concentration and some biochemical parameters of two kidney bean (Phaseulus Vulgaris L.) cultivars. Salinity caused significant reduction in growth parameters (leaves and root dry weights) and some of biochemical parameters (nutrients concentration, photosynthesis pigment, Carbonic Anhydrase Activity (CAA), antioxidant enzyme activity Peroxidase (POD) and lipid peroxidation). The reduction effect on Paulista cultivar was higher than Nebraska cultivar at 100 mM NaCl salinity stress. Meanwhile, POD activity was increased under salt stress conditions. Lipid Peroxidation (LP) under 100 mmoL NaCl salinity was significantly increased. The two cultivars showed an increase in MDA content with NaCl salinity stress, but the increase in sensitive cultivars Paulista was higher than that in salt-tolerant Nebraska cultivar. Application of (AsA) not only mitigated the inhibitory effect of salt stress in both kidney bean cultivars, but also in some cases induced a stimulatory effect greater than that estimated in the control plants on growth parameters which were accompanied by marked increases in nutrients concentration and photosynthetic system (pigments and carbonic anhydrase activity). Ascorbic Acid (AsA) has been shown to be an essential antioxidant; agent may act as a scavenger of ROS for mitigating the injury on bio-membranes under salt stress. Therefore, this study suggested that (AsA) application may induce an adaptive response in kidney bean through stimulation of the antioxidant enzymes activities, photosynthesis processes and lower lipid peroxidation, in Nebraska relative to Paulista may contribute to salt tolerance mechanism in Nebraska.

Release of P from Natural Syrian Rock Phosphate in Acidic Soils

International Journal of Soil Science, 2006

Peace and Development in Africa: the First African Pugwash Symposium, held in Cairo, Egypt, 4–9 January 1975

Environmental Conservation, 1975

First Expert Meeting on Regional Programmes for Environmental Studies in the Red Sea, held at Jeddah, Saudi Arabia, 25 November-1 December 1974

Environmental Conservation, 1975

Micronutrient Status of Some Food Crops - Increasing Yields Through Micronutrient Foliar Application in Behira/Egypt

Foliar Fertilization, 1986

Flower and Pod Drop

Faba Bean Improvement, 1982

Higher and better yields with less environmental pollution in Egypt through balanced fertilizer use

Fertilizer Research, 1996

... It was mentioned by Abdal-la and Mobarak (1992 a,b) that micronutrient sprays increased NPK a... more ... It was mentioned by Abdal-la and Mobarak (1992 a,b) that micronutrient sprays increased NPK and Mg uptake in shoot, which might be ... NRC-GTZ report 94p (Unpubl.) Fawzi AFA, Firgany AH, Rezk AI, Kishk MA and Shaaban MM (1983) Response of Viciafaba bean to K and ...

Effect of cycocel on amylase and invertase activity in cotton leaves

Growth and Compositional Responses of Cotton Plants Associated with Seed Treatment by Kinetin

Journal of Plant Nutrition and Soil Science, 1971

... Dr. A. T. Heguzy, Botany Laboratory, National Research Center, Dokki-Cairo, ErnPZ. Page 2. He... more ... Dr. A. T. Heguzy, Botany Laboratory, National Research Center, Dokki-Cairo, ErnPZ. Page 2. Hefi 31 Growth and Compositional Responses of Cotton Plants ... I) Austug aus der Dissertation von K. Isermunn, 1969. *) Dr. K. Isermann, 7000 Stuttgart-Hohenheim, Fruwirthstrage 20.