Science news articles about 'agricultural fertilizers'

The P.E.I. government is trying to figure out how much nitrates from agricultural fertilizer Island rivers can withstand.

Nitrogen is a key component of agricultural fertilizers and is crucial to the world's food supply. A comprehensive review of the principles and management implications of nitrogen in the soil-plant- ...

... depict warriors and trophy heads," said Williams. "But there are also scenes that link trophy heads to agricultural fertility. Mythical creatures depicted on some pots carry trophy heads as well." ...

... compared this watershed data with land-use practices since the early 1900s. Nitrogen from agricultural fertilizers leaches through soils to groundwater and runs off into rivers and lakes, ...

... the overproduction of aquatic plants and algae. Nitrogen pollution is largely derived from agricultural fertilizers and emissions from the combustion of fossil fuels. Phosphorus pollution is tied ...

... information that can provide data on past changes in nitrogen application in the drainage basin from agricultural fertilizers, records of past flooding and hurricane events, to name a few, Bianchi ...

Many of the 33 mummies uncovered near Chiclayo, Peru, were those of girls—a rarity, experts say. Their throats slit, the girls were probably killed in a bid for agricultural fertility. Video.

... the solid residue termed sewage sludge. Sludge often is stored in landfills or recycled as agricultural fertilizer. Uncoated nanoparticles, in contrast, stayed in the water and therefore remained in ...