Sodium (Na) is an alkali metal that is silvery-white and comprises about 2.6% of the earth’s crust. Sodium was named after the English word soda and from the Medieval Latin word sodanum, meaning “headache remedy”……

In the New England region of NSW, merino sheep generally run on granite soils containing lower nutrient levels, in particular, phosphorus and sulphur can be limiting. Recent trials by AgSolutions and Miramoona Merinos producer, Kim……