aquaponics, system of agriculture that combines aquaculture and hydroponics to cultivate both plants and aquatic animals. Aquaponics setups cycle nutrients through a closed circuit of bacteria, fish, and crop plants. The system uses nitrifying bacteria to convert fish waste into nitrates for plants, ...
Domestic sewage is also a major source ofplantnutrients, mainlynitratesandphosphates. Excess nitrates and phosphates in water promote the growth ofalgae, sometimes causing unusually dense and rapid growths known asalgal blooms. When the algae die, oxygen dissolved in the water declines because microor...
–Now the fate of the novel and the novelist’s own creative rallentando fuse into the Gatsby myth. Ramate: having branches; branched; ramose. Rambling: spreading out in different directions; untidy; straggly. –Hallways took odd turns, dead-ended unexpectedly, or took long, rambling, rounda...
[33] 250 ppm for 1 h/d has long-term efficacy [85] 250 ppm for 4 h promotes bacteria clearance and decreases inflammation [86] 250–1000 ppm for 24 h prevents ischemia reperfusion injury [12] antiinflammatory; protection from tissue reperfusion injury; vasodilatation; antiapoptotic; anti-...
Nitrogen fixation, any natural or industrial process that causes free nitrogen, which is a relatively inert gas plentiful in air, to combine chemically with other elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites. L