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.
Minerals and a horse salt block are an essential part of a healthy equine diet. Fortunately most of the needed minerals are found in hay, grains and mineralized salt.... If fed in the right proportions. Trouble comes when horses get too much or too little of any given mineral in their diet.orses are unable to absorb the calcium when they have too much phosphorus in their diet. Horses can also get a phosphorus overdose when they are fed too much bran; either wheat bran or rice bran.