TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: In recycling of solid and liquid organic waste for a greenhouse culture, the portion of the liquid organic waste is anaerobically digested with the pre-treated digestable mixture. It further comprises aerobically treating the fertilizing sludge so as to produce humic compounds prior to reintroduction into the greenhouse culture. It further comprises combusting the biogas to generate energy for the greenhouse culture. It further comprises recovering carbon dioxide from the combustion and reintroducing the carbon dioxide into the greenhouse culture. Filtering through the marsh comprises adding a carbon nutrient source to the marsh. The carbon nutrient source is a simple sugar. The simple sugar is sucrose. The marsh filtering is performed in at least one marsh cell that has an air-exposed surface area sized to reduce formation of nitrogen-oxygen-based greenhouse gases from the at least one marsh cell. The marsh filtering is performed in at least one marsh cell comprising an upper non-immersed layer and a subterranean immersed filtering layer. It further comprises recovering at least a portion of the marsh biomass and anaerobically digesting the portion. The portion of the marsh biomass is anaerobically digested with the pre-treated digestable mixture for recycling. The marsh effluent is subjected to nitrification prior to reintroduction into the greenhouse culture. The marsh effluent is subjected to nitrification with the digested solution for recycling therewith as the organic liquid fertilizer. The marsh biomass is selected from the group consisting of phragmite australis reeds and typha plants. The marsh filtering comprises serial filtering in multiple marsh cells. Each marsh cell is constructed with an impermeable membrane defining a bottom and side walls. The multiple marsh cells comprise a pre-treatment marsh cell containing sulfate-reducing microflora. The multiple marsh cells comprise an ammonium-reducing marsh cell. The multiple marsh cells comprise a phosphorus-capturing marsh cell. It further comprises limiting exposure to atmosphere during the nitrification to reduce denitrification and ammonia volatization. It further comprises diluting the digested solution and/or the marsh effluent to reduce the concentration of ammonium prior to the nitrification. It further comprises enclosing the digested solution prior to the nitrification to avoid denitrification and ammonia volatization. The nitrification is performed in a nitrification unit comprising a suspended-carrier biofilm reactor having inert media and nitrifying bacteria forming a biofilm. It further comprises managing the nitrification to withstand ammonia concentrations above 500 mg/L and to produce the organic liquid fertilizer having a nitrate/ammonia ratio above 9/1. Managing the nitrification is performed based on the carbon/nitrogen ratio, the nitrate/ammonia ratio and/or the pH, and comprises adjusting hydraulic residence time, dilution prior to the nitrification, pH and/or the quantity of inert media within the nitrification unit. Nitrification generates solid matter that is recovered by filtration or decantation for reintroduction into the greenhouse culture. The solid matter comprises sloughed biofilms. It further comprises cooling the organic liquid fertilizer to between about 18 degrees C and about 25 degrees C prior to reintroduction into the greenhouse culture. It further comprises inoculating the organic liquid fertilizer using probiotic agents and balancing the organic liquid fertilizer prior to reintroduction into the greenhouse culture. It further comprises enriching the organic liquid fertilizer with oxygen prior to reintroduction into the greenhouse culture. The greenhouse culture comprises solid culture media and reintroducing the organic liquid fertilizer comprises flowing the organic liquid fertilizer within channels interfacing with the culture media to allow diffusion into the culture media. It further comprises controlling the process by: monitoring parameters selected from the pH, salinity, turbidity, particle size, and concentration of nitrogen, phosphorus, potassium and sulfur compounds; temporarily stocking at least some process streams selected from the liquid organic waste, the solid organic waste, the digested solution, the biogas, the fertilizing sludge, the marsh effluent, the organic liquid fertilizer, the fertilizing sludge and/or water effluent streams, based on the parameters; and releasing the stocked streams when required into corresponding process steps including the anaerobic digestion, the marsh filtration, the nitrification or the greenhouse culture reintroduction. It further comprises maintaining the particle size in the organic liquid fertilizer below about 200 microns prior to reintroduction into the greenhouse culture and reintroducing the organic liquid fertilizer by an irrigation system. It is conducted in hybrid batch-continuous mode, wherein recovering the solid and liquid organic waste and anaerobic digestion occur in batch mode while the marsh filtration and nitrification occur in continuous mode. The greenhouse culture is selected from the group consisting of vegetable cultures, ornamental cultures, medicinal cultures, algal cultures and aquacultures. EXAMPLE - No suitable example given.