Word: ammonias
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...mostly the tasty tropical tilapia (somewhat like the sunfish). Pumped by the windmill, the water from this pond is passed through a solar heater, then circulated through a bed of crushed, bacteria-laden shells in the topmost pond. The bacteria not only detoxify the fish wastes but convert the ammonia in them to nitrites and nitrates, which are used to fertilize algae in another part of the pond...
...data returned by the spacecraft also support the long-held theory that Jupiter is unique among planets: a great ball of whirling gases and liquids with no solid surface. Its outermost 600 miles consist of an atmosphere of hydrogen and helium gases laced with clouds composed of crystals of ammonia, ammonia hydrosulfide and water ice. The rest of the planet is mostly a seething cauldron of liquid hydrogen, except perhaps for a small, rocky, possibly iron-bearing core. Scientists suspect that Jupiter's extreme interior heat-about 54,000° F. at the core-may be left over from...
Woods Hole Marine Biologist John Ryther has devised an even more ingenious aqua-farming scheme using partially treated sewage water from the Cape Cod town of Wareham. In his ponds, Ryther raises a thick harvest of plankton, which is then fed to baby oysters. To remove whatever ammonia, phosphates or nitrates the oysters and plankton may have left behind, he runs the sewage water over beds of seaweed, which also thrives on these chemicals...
...drilling equipment, machinery and electronic gear, including computers. The Russians have been eager for loans and technological know-how, and so far they have got some of both. Only in May Nixon intervened with the Export-Import Bank to approve a $180 million loan for eight Soviet ammonia fertilizer plants and the attendant gear to move the fertilizer to distribution centers. Partially because of the Jackson amendment, however, Nixon has not been able to deliver on his other promises for loans and tariff concessions. "My firmness has resulted in some movement," Jackson says, defending his stand. "The only real charge...
...latest emergency that bodes ill for food prices is the serious fertilizer shortage. Supplies of natural gas, from which many fertilizers are made, have shrunk along with those of fuel. Speaking of a key fertilizer known as anhydrous ammonia, Warren Dewlen, chairman of the Fertilizer Institute, says: "Inventories are only half of what they should be at this time, and the outlook for improving the situation is dim." Some farm experts believe that the lack of fertilizers alone could cut crop yields by as much as 20%, worsening the shortage crunch in raw agricultural products...