[01] Salah Abdel Rahman Salih, Department of Agricultural Engineering, Faculty of Agriculture, Elneelain University, Khartoum, Sudan. [02] Azmi Elhag Aydrous, Department of Agricultural Engineering, Faculty of Agriculture, Omdurman Islamic University, Omdurman, Sudan.

Sudan weather conditions are characterized by having predominantly long and hot summers and short and mild winters. Such climatic conditions put a great strain on the types of crops that could be successfully grown under greenhouses. Cover used in greenhouses in Sudan was agreed with the standard specification, but not agreed with the standard length, width and height. Irrigation in all greenhouses in Sudan is by drip irrigation, result in salt accumulation this require leaching process, but this process does not find an interest in greenhouses. Also, in Sudan there is no interest for cleaning and sterilization which lead to increase infection by diseases, pests and insects. Cultural practices (land preparation, sowing date, variety or cultivar, soil type and its fertility, irrigation quantity and quality, fertilization dose and time of application, insecticides, pesticides and herbicides) do not apply correct in greenhouses in Sudan. Results from different locations in Sudan showed lower production compared with Europe and America. Cucumber production in greenhouses at different location gave different production and different cost of production and return. Also, different cucumber varieties gave different production in greenhouses. The main objectives of this publication are providing a compilation of greenhouse production practices and technologies presently in use in Sudan climate that have helped increase vegetables productivity and quality.

Greenhouse, Specifications of Greenhouse, Sudan Climate

[01] Castilla, N. 2007. Invernaderos de plástico: Tecnología y manejo(2nd ed.). MundiPrensa Libros, Madrid. [02] Castilla, N. & Hernandez, J.2005. The plastic greenhouse industry of Spain. Chronica Hort., 45(3): 15–20. [03] Nelson, P.V.1985. Greenhouse operation and management. Prentice Hall, New Jersey, USA. [04] Nisen, A., Grafiadellis, M., Jiménez, R., La Malfa, G., Martínez-García, P.F., Monteiro, A., Verlodt, H., Villele, O., Zabeltitz, C.H., Denis, J.C., Baudoin, W. & Garnaud, J.C.1988. Cultures protegees en climat mediterraneen. FAO, Rome. [05] Chung, M., Liao, S., Tin, S., 2010. Characterizing the Performance of Alternative Cooling Pad Media in Thermal Environmental Control Applications, Taiwan 10617, Republic of China. [06] Ernst, V.H., 2004. Greenhouse Manual for Small Farmers. NGO-Agricultural Diversify Project, 74 Kennedy Ave., Roseau, Commonwealth of Dominican. [07] Mohammed, A. and Abdulelah, A., 2005. Design and evaluation of galvanized metal sheets as evaporative cooling padsJournal of King Saud University, Agricultural Science, 18 (1) (2005), pp. 9–1 [08] Alodan M. A. and A. A. Al-Faraj. 2005. Design and Evaluation of Galvanized Metal Sheets as Evaporative Cooling Pads. J. King SaudUniv., Agric. Sci. 18 (1):9-18. [09] Costelloe B., and D. Finn. 2003. Indirect evaporative cooling potential in airewater systems in temperate climates. Energy and Buildings. 35(6): 573-591. [10] Heidarinejad G., M. Bozorgmehr, S. Delfani, and J. Esmaeelian. 2009. Experimental investigation of two-stage indirect/direct evaporative cooling system in various climatic conditions, Building and Environment. 44: 2073–2079. [11] Sethi, V.P.; Sharma, S.K. 2007. Survey of cooling technologies for worldwide agricultural greenhouse applications. Sol. Energy, 81, 1447–1459.