August 2010
Towards the development of green energy saving mechanisms
Geothermal energy is the natural heat that exists within the earth and that can be absorbed by fluids occurring within, or introduced into the crystal rocks. Although, geographically, this energy has local concentrations, its distribution globally is widespread. The amount of heat that is theoretically available between the earth’s surface and a depth of 5 km is around 140 × 1024 J. Of this,...
August 2010
Substitution of municipal solid waste compost for peat in cucumber transplant production
Municipal solid waste compost (MSWC) is used in agriculture as a fertilizer, organic soil additive and crop substrate. MSWC was examined as an alternative for peat in cucumber (Cucumis sativus L., cv. Radian) transplant production. An experiment was conducted in 2008 at the University of Guilan, Rasht, Iran with the treatments 100% peat+0% MSWC (control); 95% peat+5% MSWC, 90% peat+10% MSWC, 85% peat+15%...
August 2010
Leaf nitrogen and potassium concentrations for optimum fruit production, quality and biomass tree growth in Clementine mandarin under Mediterranean climate
Leaf analysis is a useful tool to evaluate the nutrient status of citrus trees, but diagnosis standards for ‘Clementine mandarin’ are not available. Nutrition recommendations of the current fertilization practices are mainly based on the same recommended nutrient rates for orange trees. A three-year (2005 - 2007) field experiment was conducted in North Eastern Tunisia (El Gobba). This experiment...
August 2010
Domestication of Irvingia gabonensis (Aubry Lecomte) by air layering
Irvingia gabonensis is one of the most important indigenous fruit tree species in African humid tropics. Methods have been developed for phenotypic selection and vegetative propagation of this species; but techniques for the capture of desired traits through inexpensive technological methods are still lacking. A series of experiments were conducted to assess the effects of auxin (Seradix-2) application...
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