ME Ali, HH Abbas and A Sheta (1987) Effect of manganese on phosphate sorption by CaCO3. Mansoura Univ. Conf. Agric Sci. on food deficiency overcoming through automonous efforts in Egypt, 1:169-175. MK Sadik, HH Abbas, SM Abd-El-Aziz and SM Allam (1987) Sewage water as a possible scorce for irrigating sandy soils. Proc. 1st Conf. Agric. Develop. Res., Ain Shams University, 2:206-220. RS Abdel Aal, S Abdel Kader, HH Abbas and MM Farag (1988) Pedological studies on soils of El-Qaa plain, South Sinai. J. Agric. Sci. Mansoura University, 13:418-427. MK Sadik, AA Salem, HH Abbas and BH Naguib (1988) Evaluating changes in soil salinity and sodicity following laying subsoil drains(designed and installed by ministry of irrigation) in a clay soil in Giza. Proc. 2st Conf. Agric. Develop. Res., Ain Shams University, 4:36-47. HH Abbas (1989) Effect of different forms and rates of nitrogen on dry matter yield of barley plants, and their content of zinc and total nitrogen. J. Agric. Sci. Mansoura University, 14:1835-1842. S Abdel Kader, HH Abbas, ME Ali and O El-Hussiny (1989) Dynamic processes in relation to the statistical parameters of some valleys of southern Sinai. J. Agric. Sci. Mansoura University, 14:1825-1834 AA Salam, RS Abdel Aal, HH Abbas and MM Farag (1988) Features of soils of El-Qaa Plain landforms, Sinai, and their rating for agricultural expansion. J. Agric. Sci. Mansoura University, 14:1817-1824. MK Sadik, AA Salam, HH Abbas, AB Ismail (1990) Studies of applying fertilizer N through sprinkler irrigation on an alluvial clay soil under maize or barely. Egyptian J. Appl. Sci., 5:1-13. HH Abbas, FM Habib , ME Ali and FT Al-Sager (1991) Effect of quality and quantity of irrigation water on soil chemical properties and chemical composition of sorgum plants grown on a clayey soil. Annuals of Agric. Sci., Moshtohor, 29:1825-1841. RS Abd-El-Aal, HH Abbas, MH Rabie and MEA Kalil (1991) Accumulation of micronutrients and heavy metals in sandy soils irrigated with sewage water. Annuals of Agric. Sci., Moshtohor, 29:1811-1823. ARA Khalil , SM Saad , HH Abbas and HH Abdellah (1991) Composition and infrared specta of humic and fulvic acids in soil organic matter, Annuals of Agric. Sci., Moshtohor, 29:1429-1441. FA Abo-Sedera, SMM Eid, HH Abbas(992) Effect of cycocel foliar spray on vegetative growth, chemical composition, flowering, yield and quality of pea plants grown under salinity stress. Annuals of Agric. Sci., Moshtohor, 30:1425-1441. ME Ali, OA El-Hady, HH Abbas and SEM Hefny (1992) Effect of soil conditioning on some chemical properties of salt affected soils. Annuals of Agric. Sci., Moshtohor, 30:1565-1575 SMM Eid , HH Abbas and FA Abo-Sedera (1992) Effect of GA3 foliar spray on plant growth, chemical composition, flowering, pot yield and chemical composition of green seeds for pea plants grown under salinity stress. Annuals of Agric. Sci., Moshtohor, 30:1443-1458. HI El-Desouky, HH Hassona, SY Montasser, and HH Abbas (1992) Relationship between amorphous materials and some properties of calcareous soils. Egyptian J. Appl. Sci., 7:589-595. HH Abbas (1993)Transformation of P applied to some soils as influenced by time. Annuals of Agric. Sci., Moshtohor, 31:643-652. HH Abbas (1993) Heavy metals and trace elements in soils and plants as affected by irrigation with sewage and industrial waste waters. Annuals of Agric. Sci., Moshtohor, 31:653-666. ME Ali, HH Abbas and AEM Gadallah (1993) Effect of P and Mo fertilization on growth, mineral contents and nodulation of soybean. 4th Conf. Agric. Dev. Res., Ain-Shams Univ., Cairo, Annals Agric. Sci. sp. Issue, 2, 531-539. AH Abd El-Hammed, HH Abbas, MN Hegazy and MEA Matter. (1999) Levels of heavy metals in plant and soil around the industrial complex of Shobra El-Kheima, Qaluabia, Egypt. Annals of Agric. Sc., Moshtohor, 37(3): 2079-2091 AH Abd El-Hameed, HH Abbas, MN Hegazy and MEA Matter. 1999: Contamination of roadside soils and plants grown thereon with some heavy metals. Proceeding on the international Conference of Environmental management, Health and Sustainable Development Conference, March 22-25 Alexandria, pp 82-92 HH Abbas, SA Soltan, MH Mahmoud and MA Nasef (2000) Leachability of some trace elements and some cations and anions during amending a saline sodic soil with gypsum or sewage sludge. Conference of Social and Agricultural Development of Sinai (S 49 – 66), 557-573. HH Abbas, AH Abd El-Hameed, SA Basiouny and NI Ghayed 2002: Effect on incubation periods on the behavior of some heavy metals in some soils of Egypt. J. Agric. Sci. Mansoura Univ., 27(6): 4193-4204 HH Abbas, OH El-Hussieny and MA Abdel-Salm (2002) Main forms of potassium in soils of Kalubia, and their relation to soil constituents and properties. Annals of Agric. Sci.. Moshtohor, 40(4): 2361-2379. SA Soltan, HH Abbas, IM Hegazy and GF El-Sheikh (2002) Cadmium and calcium preference on some exchange materials. Egyptian Soil Science Society (ESSS), 6th national congress on towards a strategy for soils and water, October 29-30 SA Soltan, HH Abbas, IM Hegazy and GF El-Sheikh (2002) Relative distribution of Ca2+ and Na+ between soil solids and soil solution in relation to soil characterization under arid conditions. Egyptian Soil Science Society (ESSS), 6th national congress on towards a strategy for soils and water, October 29-30 SA Soltan, HH Abbas, MA Rizk, and IA Moussa (2002) Reduction of hexavalent chromium under flooding conditions and its effect on rice (Oryza sativa). Annals of Agric. Sci., Moshtohor, 40(1): 651-668 HH Abbas, CY El-Dewiny, HH Hassona and GA Abd El-Kader. (2003) Total and DTPA-extractable micronutrients as correlated to some soil properties in Kalubia Governorate. Egypt. J. Soil Sci. 43(4): 509-528 HH Abbas, EHA Noufa, SM Abd El-Aziz and HS Saeid (2004) Effect of gypsum and organic matter application on improving properties of sodic and saline soils. The 4th Scientific Conference of Agricultural Sciences 7-9 December, 2004. HH Abbas, EHA Noufal, IM Farid, IME Ali (2006) Organic manuring and biofertilization approaches as potential economic and safe substitutes for mineral nitrogenous fertilization.Egyptian Journal of Soil Science, 46: 2, 219-235. AA Abd El-Hameed, MAM Ibrahim, HH Abbas and MM Kassab. (2006) Interaction relationship of irrigation level and furrow spacing on crop water parameters of sunflower. Annals of Agric. Sci., Moshtohor, 44(2): 769-774 MAM Ibrahim, AA Abd el-Salam, HH Abbas and MM Kassab (2007) Effect of different irrigation levels on some water relations and yield of faba bean. Annals of Agric. Sci., Moshtohor, 45(1): 463-468 HH Abbas, FM Habib, IM Farid, and MME Ali (2007) Implications of adding mineral nitrogen, chicken manure or compost and biofertilization on wheat plant grown on a light textured soil under different water stress levels, 3rd Conf. Sustain. Agric. Develop. Fac. Agric., Fayoum Univ., 12-14 Nov. HH Abbas; RS Abd El-Aal; NK Kandil and AAE Abd El-Hafez (2008) Environmental implications of successive mineral fertilization on soil and plant grown thereon. Third environmental conference, Faculty of Science, Zagazig Univ., 103-121 HH Abbas, EH Nofel; NS Ahmed, AEEK and FA Sadeek (2008) Environmental hazards of Ethoprophos nematocide. Egypt. J. Comp. Path & Clinic. Path, 21 (3): 111-123. RS Abd El-AL, HH Abbas; NF Kandil and AA Abd El-Hafez (2008) Statistical evaluation of heavy metals accumulation in new reclaimed soils. The fourth conference of sustainable agriculture development, Fac. of Agric., Fayoum Univ., 20-22 October, 2008. HH Abbas, MN Hegazy, IM Farid, and AOA Ismail (2008) Chemical behavior of some additives used for minimizing the potential hazards of Ni in soil. The fourth annual international scientific conference of the Egyptian society of environmental toxicity 11-14 November, 2008, Safaga, Egypt. HH Abbas, AH Abd el-Hameed, EHA Nofal, SM Abd El-Aziz (2009) Induced effect of cattle waste combined with elemental sulfur, nitrogen and phosphorous on wheat succeeded by maize grown on a calcareous soil. J. Agric. Sci., Mansoura Univ., 34(1) 597-610. HH Abbas, SM Abd El-Aziz; EHA Nofal, AH Abd el-Hameed and MF Abd El-Aziz (2009) Amelioration effect of cattle waste manure associated with sulfur, nitrogen and phosphorous on chemical properties and fertility of a calcareous soil. J. Agric. Sci., Mansoura Univ., 34(1) 643-656. HH Abbas, HH Hassona, FYM. Ahmed and RAE Abdel-Gawad. (2009) Chemical and mineralogical features of the shale deposits in Abo-Thor region, south west Sinai Peninsula. J. Agric. Sci., Mansoura Univ., 34(3) 1891-1898. HH Abbas, HMSh Salem, TA El-Maghraby and RGM. Helal (2008) Mutual effect among some micronutrients on wheat and bean plants grown on clayey and calcareous soils. J. Agric. Sci., Mansoura Univ., 34(7) 8909-8922, 2009. AA Abdelhafez,HH Abbas,RS Abd-El-Aal,NF Kandil, J Li and W Mahmoud (2012) Environmental and Health Impacts of Successive Mineral Fertilization in Egypt. CLEAN – Soil, Air, Water 40(4): 353-363 IMA Hegazy; HH Abbas; AH Mahmed and GFO El-Sheikh (2008) Organic and inorganic remediation of contaminated soils with heavy metals resulted from some anthropogenic activities. Fayoum J. Agric. Res. & Dev., 22(1) 32-42. YGM Galall , SM Soliman, H Hamza, O EI-Hosseinl and AAA Moursy . (2008) Production of Potatoes under Organic Farming System. Ninth Arab Conference on the peaceful uses of Atomic Energy, Beirut, 13-16 December HH Abbas, AAE El-Deep, FYM Ahmed and RAE Abdel-Gawad (2009) Leaching of some poisonous elements and improving the properties of shale deposits, south-west Sinai. Egypt. J. of Appl. Sci., 24(5A): 372-390. H Abbas;OH El-Husseiny;MK Mohamed and AS Abu-Zaid (2010) Land capability and suitability of some soils in Toshka area, Southwestern Egypt, Annals of Agric. Sci., Moshtohor, 48(1): 1-12 HH Abbas,, IM Farid, and MME Ali (2010) Growth of maize plant and its uptake of some macro and micronutrients under different untraditional fertilization treatments, Minia 2nd Conf. Agric. Environ. Sci., 575-583. EHA Noufal, HH Hassuna, H. H.Abbas and GA Abd El - Kader (2000) Status of some micro nutrients in soils of Kaluobia Governorate.The Golden Jubilee Congress on Soil and Sustainable Agriculture in the New Century. Egyptian Soil Science Society (ESSS) and held in Cairo from 23 – 25 October / 2000. AH Abd El-Hameed, HH Abbas, MN Hegazy and MEA Matter (2000) Extent of contamination hazards in El-Gabel El-Asfar soils and plants resulting from long-term irrigation with sewage water. Annals of agric. Sc., Moshtohor, 38(3):1795-1809 HH Abbas, SA Soltan, MH Mahmoud and MA Nasef (1996) Sorption-desorption reactions for Zinc and Cupper by some newly reclaimed soils in Egypt. Annals of Agric. Sc., Moshtohor, 34(1): 407-427 SA Soltan, HH Abbas, MN Hegazy and MK Nasef (1996) Impacts of organic wastes on phosphorous availability and productivity of newly reclaimed calcareous soils. Annals of Agric. Sc., Moshtohor, 34(3): 1299-1317 MK Sadik , AA Salam , HH Abbas and HS El-Sheikh (1992) Recycling Rice and beans crop residues by making composts used as fertilizers. 7th International Waste Management Congress-7thIRC,Technische Universităt, Berlin.