News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.

fertilization

Responsibility

Inorganic fertilization of production ponds

Nitrogen and phosphorus are the most important nutrients in fertilization of both freshwater and coastal ponds. Many factors that can affect the response of ponds to fertilizers are location-specific. Aquaculture pond managers will have to figure out the best procedure 

Health & Welfare

The importance of iron in aquaculture systems

Iron is the fourth most abundant element in the earth’s crust, but occurs at very low concentrations in surface waters and oceans. It is an essential element for many organisms as part of many enzymes, and also has an important 

Responsibility

Pond fertilization reevaluated

Although higher rates have been promoted, pond fertilization ratios of 2:1 or 1:1 nitrogen to phosphorus should be maintained in older ponds for food fish production.