Suitability of irrigation and drainage waters in South El-Kalubia Governorate for sustainable agricultural development under salt affected soil conditions. Impact of soil degradation on land productivity of south El-Kalubia Governorate. Change detection in land degradation and environmental hazards sensitivity in some soils of Siwa Oasis. Evaluation of sustainable land management on some selected soils of Siwa Oasis. Assessment of soil quality using remote sensing and GIS techniques in some areas of North-East Nile Delta, Egypt. Determination of soil productivity potentials: case study in El-Sharkia Governorate of Egypt. Assessment of waste waters quality for irrigation purposes. Land evaluation and suitability of Hala’ib and Shalateen region, Egypt, by integrated use of GIS and remote sensing techniques. Assessment of Land Degradation Risk in El-minufiya Governorate, Egypt Utilizing Sustainable Land Management Model for Sustainability Index Assessment in El-Minufiya Governorate, Egypt Assessment of Groundwater Quality for Different Aquifers in Halaib and Shalatien Area at South Eastern Desert of Egypt Classification and Mapping of Land Productivity, Capability and Suitability for Production Crops in West El-Minia Governorate, Egypt Assessment of Land Degradation Risk in El-minufiya Governorate, Egypt Assessment of Land Suitability Index for the Wheat Crop Production by Using Sys’s Method and ALES Program Effects of Different Biogas Manures and Their Extracts on Dry Matter Yield and Nutrients Uptake by Faba Bean (vicia faba l.) Grown on Sandy Soil Conditions. Effects of Different Biogas Manures and Their Extracts on Dry Matter Yield and Nutrients Uptake by Faba Bean (vicia faba l.) Grown on Sandy Soil Conditions.