The proposal is for broad-scale use of bauxite residue as a soil amendment for existing agricultural and horticultural properties. The Department of Agriculture expects bauxite residue application rates to range from 20 to 100 tonnes per hectare (t/ha) for pasture and up to 250 t/ha for horticultural uses. Applications of over 100 t/ha would need to be mixed into the soil and gypsum addition considered to ensure the soil pH is suitable for agriculture.