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I participated in a number of conferences and workshops, including the following
* Conferences on the" Uses of Treated Sewage Water in Agriculture Projects"- organized by King Abdulaziz University and United Nations Health Organization, Jeddah, Saudi Arabia, 1413H-1993G. I delivered a lecture entitled “Study of the Effects of the Heavy Metals Present in Sewage Water on Soil and Wild Plants, and the Possibility of Using it in Agriculture in Future”.
* Saudi Biological Society (SBS) Thirteenth Annual Meeting on Environment Protection and Components (Animals, Plants, Water and Soils), Buraidah, King Saud University- 1412H-1992G.
* The First Scientific Saudi Symposium on Controlled Environment Agriculture- College of Agriculture, King Saud University, Riyadh, Saudi Arabia - 1412H-1992G.
* Saudi Biological Society (SBS) Fourteenth Annual Meeting (Biological Natural Resources in Kingdom of Saudi Arabia), King Abdulaziz University, Jeddah, Saudi Arabia - 1413H-1993G. I presented the following papers:
(1) Effects of Seed Rate, Nitrogen and Phosphorus on Biomass Production and N, P, K Content in Sudan Grass.
(2) Growth Analysis and Dry Matter Accumulation in Sudan Grass under Different Nitrogen, Phosphorous and Seed Rate Treatments.
* Saudi Biological Society (SBS) Fifteenth Annual Meeting (Biological Natural Aspects in Kingdom of Saudi Arabia) - Umm Al-Qura University, Makkah Al-Mukarramah, Saudi Arabia - 1414H-1994G. I presented the following papers:
(1) Effects of N and P Fertilizers on Grain Yield and Ear Characteristics of Maize Under the Arid Conditions of the Western Region.
(2) Dry Matter Accumulation in Maize under Different N and P Levels.
(3) The Effect of Different Rates of Phosphorus and Organic Matter on the Growth, Yield and Phosphorus Content of Two Varieties of Cucumber.
*- Saudi Biological Society (SBS) Sixteenth Annual Meeting on (Biological Natural Resources in Kingdom of Saudi Arabia) , King Saud University, Riyadh, Saudi Arabia -1415H-1995G.
* Saudi Biological Society (SBS) Seventeenth Annual Meeting on (Biological Natural Resources in Kingdom of Saudi Arabia), , King Saud University, Buraidah, Saudi Arabia - 1417H-1996G. I presented the following paper:
(1) Effect of Irrigation and Nitrogen Treatments on Growth and Productivity of Sudan Grass
* Saudi Biological Society (SBS) Eighteenth Annual Meeting on (Ecological Pollution and Biological Aspects of Saudi Arabia), 1418H-1998G. I presented the following papers:
(1) Effect of Different Rates of Nitrogen on Yield of Barley Plant.
(2) Effect of Different Levels of Nitrogen on Fresh and Dry Matter Accumulation and Nitrogen uptake during Different Growth Stages of Barley Plant.
* Saudi Symposium on Halophyte Plantation, King Abdulaziz University for Science and Technology and Arabian Saline Technology (BEHAR), , Riyadh, Saudi Arabia -1418H-1998G. I presented the following paper:
The Effect of Different Dilutions of Sea Water on Germination of Salicornia bigelorii Seeds Incubated under Different Temperatures.
* International Symbosium on Elemental Sulphur for Agronomic Application & Desert Greening, organized by Al-Ain University, United Arab Emarites & JPEC (Japan) - 24-25 February, 2001. I presented the following paper:
(1) Effect of different forms of sulphur & salty water irrgation levels on mobility of salts in soil under date palm trees.
* Agriculture & Water Resources Development Symbosium in the Region of the Two Holly Mosques King Fahad Bin Abdelaziz. Organized by College of Agriculture & Food Sciences, King Faisal University, Al-Hassa, Saudi Arabia -1422H-2002G. I presented the following paper:
(1) Effect of different rates of phosphorus fertilization & sprinkler irrigation on growth & yield of Alfalfa under arid land conditions.
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