The Grass Doctor

why is each of the elements nitrogen, phosphorus, sulfur and iron included in lawn food?

Public Comments

1. They are required in the metabolism and they are used to build up necessary fragments in the body. For example, phosphorus is used for calcium phosphate for the bones and teeth, or as ATP as a form of energy; nitrogen is used for the "nitrogen cycle". Iron is used for ferritin storage and haemoglobin (in red blood cells). Sulfur is important as well, we have cysteine, methionine and cystine as sulfur-containing amino acids. So all of these elements are used to build up important compounds like I wrote above.