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

phosphorus

Responsibility

Properties of common commercial fertilizers in aquaculture

Commercial nitrogen and phosphorus fertilizers are widely used in aquaculture production systems to stimulate phytoplankton growth and the food web that provides natural food organisms beneficial to stocked fish fry and shrimp postlarvae. 

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 

Responsibility

Reactions between pond bottom soil, water

Alkalinity and acidity in pond water and soil interact and can result in unhealthy culture conditions. Ion exchange occurs between soil and water until an equilibrium is reached.