Indeterminate nodules are the only type found in Caesalpiniodeae and Mimosoideae and the most common type in Papilionoideae (Sprent, 2001; p. 32). As a result of the variety of ways the plant is infected by rhizobia, there are different types of nodules.
Minerals are inorganic nutrients that are needed in relatively small quantities by the horse. The essential major minerals are calcium, phosphorus, magnesium, sodium, chloride, potassium and sulfur. The essential trace minerals needed are iron, zinc, copper, selenium, manganese, iodine, and cobalt.
Horse sweat contains the electrolytes chloride, sodium, potassium, calcium, magnesium, and a few other trace minerals. The two electrolytes lost in the greatest amounts are sodium and chloride, which is salt, so a proper electrolyte should be saltâbased to meet the horseâs needs.ommercial horse feeds, hay and pasture also contain electrolytes, but horses involved in performance, trail and show events, especially when travel is involved, need additional electrolytes to maintain good health and performance.