Publications

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2022
EMARA, E. M. A. N. I. R., M. A. M. Moursy, and L. M. M. HAMED, "Response of certain peanut (Arachis hypogea L.) varieties to water regime using different irrigation systems in new reclaimed areas", Journal of the Saudi Society of Agricultural Sciences, 2022. AbstractWebsite

Peanut (Arachis hypogaea L.) is a major crop grown on 24 million ha around the world for edible oil and food. Globally, peanut varieties with high yield potential and adaptation ability have been enhanced, developed, and approved for cultivation. The improved varieties have diverse maturity durations and have disease resistance, drought tolerance, increased oil content, and improved quality traits for food uses. Currently, the limitations of productive agricultural lands and the scarcity of available water are the critical factors contributing to the gap in food production worldwide. In this direction, a two-year-long field study was conducted during the summer seasons of 2019 and 2020 to study the ability to cultivate certain peanut varieties, including Giza 6, Giza 5, and Gregory. Three water regimes100, 80, and 60% of crop water requirement (CWR) were applied using two methods of irrigation application (drip and sprinkler) in new agricultural expansion areas located north of Cairo city. The obtained results confirmed that increasing the water deficit from 100% to 60% of CWR significantly reduced all peanut growth traits such as biomass by 14.3%, pod by 14.2%, and seed by 7.8%, but the 80% water regime recorded the highest oil content. Regarding the irrigation systems, the drip irrigation system surpassed the sprinkler system in both successive seasons in all studied variables. Giza 5 variety, along with 60% of CWR, recorded the highest water productivity for biomass and pod yields. The Giza 6 variety was the most tolerant variety based on the stress tolerance index (STI), whereas the Gregory variety was the least drought-tolerant variety.

2020
Emam, M. A. S., T. Elsayed, and L. MAMDOH MOHAMED HAMED, Sweet Corn Growth Performance and Rhizosphere Microbial Densities in Response to Mineral and Organic Amendments, , vol. 60, issue 1(In progress), pp. 43 - 52, 2020. AbstractWebsite

Two field experiments were conducted at the experimental farm of the Central Laboratory for Agricultural Climate (CLAC), Agricultural Research Center, Giza, Egypt, during 2017 and 2018 seasons, to evaluate the effects of compost and organic extracts on growth and yield of sweet corn (Misthi F1 Hybrid) and microbial populations in rhizosphere. Extracts of compost, vermicompost and chicken manure with adding half dose of compost were compared to full dose of compost and mineral fertilizers. The populations of total bacteria, fungi and phosphate solublizing bacteria were estimated. Results showed that applying half dose of compost with adding vermicompost (50% C + VEx) extract gave the highest growth, yield and ear properties of sweet corn without any significant differences compared to mineral fertilizer treatment. Applying half dose of compost with adding extract of compost or chicken manure decreased growth, yield and ear properties of sweet corn compared to mineral fertilizer. 50% C + ChEx recorded the highest total bacterial counts. The treatments of half dose of compost with adding any organic extracts were superior to full dose of compost (100% C) in all studied traits. This study revealed the possibility of using half dose of compost with adding vermicompost extract for producing satisfactory yield quantity with high quality of sweet corn ears.

R. E., A., A. S.M.M., M. A. M.M., M. Hafez, A. I. Popov, and L. M. M. HAMED, "INFLUENCE OF N-FERTIGATION STRESS AND AGRO- ORGANIC WASTES (BIOCHAR) TO IMPROVE YIELD AND WATER PRODUCTIVITY OF SWEET PEPPER UNDER SANDY SOILS CONDITIONS", Plant Archives , vol. 20, issue Supplement 1, pp. 3208-3217 , 2020. 214__3208-3217_.pdf
2019
Solinam, M. A. E., and L. MAMDOH MOHAMED HAMED, "Application of Bio-Stimulatants in comparison with organic and mineral N fertilizers for growth promotion of spinach and common bean growth on sandy soil", J.Soil Sci. and Agric. Eng., Mansoura Univ., vol. 10, no. 1, pp. 79–85, 2019. Abstract
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MAMDOH MOHAMED HAMED, L., F. Sara, and E. I. B. R. A. H. I. M. R. E. F. A. I. E. EMARA, "Conserving Soil Fertility and Sustaining Crop Performance Via Soil Tillage Systems and Crop Rotation", ALEXANDRIA SCIENCE EXCHANGE JOURNAL, vol. 40, no. 2: 10.21608/ASEJAIQJSAE.2019.31624, pp. 256–262, 2019. Abstract

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Bhardwaj, A. K., L. M. M. Hamed, N. Sharma, D. Rajwar, S. Meti, and M. S. Nagaraja, "Engineered Polymeric and Nano-materials for Taming Salty Soils and Waters Used for Crop Production", Research Developments in Saline Agriculture: Springer, pp. 391–405, 2019. Abstract
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R. E., A., A. M. R. A. Abdelaziz, E. F. Essa, and L. M. M. HAMED., "Impact of Irrigation Scheduling and Application Rate of Organic Fertilizers under Rotational Distribution System in Sandy Soils to Mitigate Water Stress on Apple Trees", Bioscience Research, vol. 16, no. 2: http://www.isisn.org/BR16(2)2019/1626-1637-16(2)2019BR18-669.pdf, pp. 1626–1637, 2019. Abstract
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MAMDOH MOHAMED HAMED, L., G. A. L. A. L. Y. M. Galal, E. I. B. R. A. H. I. M. R. E. F. A. I. E. EMARA, and M. A. E. SOLIMAN, "Optimum Applications of Nitrogen Fertilizer and Water Regime for Wheat (Triticum aestivum L.) Using 15N Tracer Technique under Mediterranean Environment", Egyptian Journal Of Soil Science, vol. 59, no. 1, pp. 41–52, 2019. Abstract
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Moursy, M. A. M., E. I. R. Emara, S. A. E. L. G. Hamid, and L. MAMDOH MOHAMED HAMED, "Response of Allium crops to nitrogen fertilization rates and different irrigation water sources. Egyptian Journal of Soil Science", Egyptian Journal Of Soil Science, vol. 59, no. 2, 2019. Abstract
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MAMDOH MOHAMED HAMED, L., and E. I. B. R. A. H. I. M. R. E. F. A. I. E. EMARA, "Varietal tolerance of sugar beet (Beta vulgaris L.) to water stress", Misr Journal of Agricultural Engineering., 2019. Abstract
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2017
X. Huang, Q. Zhang, S. Chen, Y. Dong, M. Xiao, and HAMED L. M. M., "Aggregate Stability and Erodibility of Purple Soil on Sloping Farmland as affected by different Soil Thickness", 19th EGU General Assembly, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria., p.3824, Vienna, Austria, 23-28 April, 2017. egu2017-3824-3.pdf
El-Mehrat, H. G., A. M. R. A. Abdelaziz, W. M. Ibrahim, and L. M. M. HAMED, "Effectiveness of Compost and Potassium Silicate under Low Rate of Mineral Fertilizers on Production, Quality, Marketability and NPK Contents of Banana Plants", J.Soil Sci. and Agric. Eng.,, vol. 8, issue 12, pp. 787 - 795, 2017. 690.pdf
Huang, X., Q. Zhang, S. Chen, Y. Dong, M. Xiao, and L. MAMDOH MOHAMED HAMED, "Aggregate Stability and Erodibility of Purple Soil on Sloping Farmland as affected by different Soil Thickness", EGU General Assembly Conference Abstracts, vol. 19, pp. 3824, 2017. Abstract
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El-Mehrat, H. G., A. M. R. A. Abdelaziz, W. M. Ibrahim, and L. M. M. HAMED, "Effectiveness of Compost and Potassium Silicate under Low Rate of Mineral Fertilizers on Production, Quality, Marketability and NPK Contents of Banana Plants", J.Soil Sci. and Agric. Eng., Mansoura Univ., vol. 8, no. 12, pp. 787–795, 2017. Abstract
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2016
RE, A. R., HAMED L. M. M., A. M. R. A. Abdelaziz, and E. E.F, "Mitigation of Water Stress on Apple Trees under Rotational Irrigation Conditions by Increasing the Application Rate of Organic Fertilizers to Sandy Soils", EGU General Assembly 2016, , Vienna, Austria, 2016. egu2016-7060.pdf
, "Mitigation of Water Stress on Apple Trees under Rotational Irrigation Conditions by Increasing the Application Rate of Organic Fertilizers to Sandy Soils", EGU General Assembly 2016, Vienna, Austria, vol. 18: http://meetingorganizer.copernicus.org/EGU2016/EGU2016-7060.pdf, pp. 7060, 2016. Abstract
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Hamed, L. M. M., and M. A. E. Soliman, "Nitrogen Fertilizers Management for Improving Sugar Beet Quality and Sucrose Production", Middle East Journal of Applied Science, vol. 6, issue 4, pp. 1193-1199, 2016. 1193-1199-mejas.pdf
2015
EMARA, E. I. R., HAMED L. M. M., S. BOCCHI, and Y. M. G. GALAL, "Improving water use efficiency of wheat (triticum aestivum l. Giza 168) crop using 15N tracer technique under Egyptian environment", EGU General Assembly 2015, Vienna, Austria, pp. 7487, 2015. egu2015-7487.pdf
EMARA, E. I. R., L. M. M. HAMED, S. BOCCHI, and Y. M. G. GALAL, "Improving water use efficiency of wheat (triticum aestivum l. Giza 168) crop using 15N tracer technique under Egyptian environment", EGU General Assembly 2015, vol. 17: http://meetingorganizer.copernicus.org/EGU2015/EGU2015-7487.pdf, pp. 7487, 2015. Abstract
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2014
HAMED, L. M. M., “Nitrogen Balance In Soil Profile As Affected By Different Soil Types, Soil Water Regimes, Nitrogen Rates And Application Methods Using 15N Tracer Technique, : Università degli Studi di Milano, Italy (https://air.unimi.it/handle/2434/232140?mode=full.14\#.VO8avuaG98E), 2014. Abstract

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Hamed, L. M. M., Nitrogen Balance In Soil Profile As Affected By Different Soil Types, Soil Water Regimes, Nitrogen Rates And Application Methods Using 15N Tracer Technique, : Università degli Studi di Milano, Italy (https://air.unimi.it/handle/2434 …, 2014. Abstract
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2013
EMARA, E. I. R., E. A. MAHMOUD, and HAMED L. M. M., "Effect of Organic and Inorganic Nitrogen fertilizers and Plant Densities on yield and Quality of Sugar beet.", First International Conference " Food And Agriculture: New Approaches", December 2 - 4, 2013: Conference Abstract book, pp. 194, 2013. Abstract

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HAMED, L. M. M., S. BOCCHI, E. I. R. EMARA, and E. STEFANINI, "Evaluation of land degradation using application of USPED model in SANT’ANTIOCO Island -southern Sardinia, Italy", First International Conference " Food And Agriculture: New Approaches", December 2 - 4, 2013: Conference abstract book, pp. 291, 2013. Abstract

ABSTRACT
Deterioration of soil quality in relation to its current and future productivity and/or reduced potential of soil as a natural resource is a serious threat for an increasing number of areas all over the world. Soil erosion is an environmental problem and causes land degradation associated with its off/on-site effects. Tackling on/off-site effects requires understanding of soil loss rate and other factors which can enhance or retard soil loss. Climate, topography, geology/soil, and land use/cover are factors influencing rate of soil erosion and are considered in estimating soil loss. This process could be under natural and/or accelerated condition. Probability of keeping the environment under natural condition is very limited. Totally removing soil loss for a specific site could be impractical but efforts can be done to bring human induced erosion and misuse of land to tolerable erosion level and sustainable utilization. Study area was the island of Sant’Antioco, Sardinia, which is a very interesting area for agricultural and geological point of view. A field survey was conducted to characterize the features detected on the imagery. As result, modelling erosion/deposition patterns does not allow the evaluation of actual sediment dynamics and time variations of these patterns, but just the relative strength/ intensity of the phenomena. However, it makes available a rational for the ranking of intervention priorities and maintains the possibility of comparing different management scenarios.

KEYWORDS: USPED; USLE; soil erosion; land degradation; Sant’Antioco; land evaluation.

HAMED, L. M. M., E. I. R. EMARA, Y. G. M. GALAL, and A. Hamdy, "Irrigation water management and nitrogen fertilization of spinach using 15N tracer technique", First International Conference " Food And Agriculture: New Approaches", December 2 - 4, 2013, Alexanderia, Conference abstract book, pp. 254, 2013. Abstract

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MAMDOH MOHAMED HAMED, L., and E. I. B. R. A. H. I. M. R. E. F. A. I. E. EMARA, "Effect of organic and inorganic nitrogen fertilizers and plant densities on yield and quality of sugar beet", Conference: The First International Conference “Food and Agriculture: new Approaches”, At National Research centre Cairo University, 2013. Abstract
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