sulfur inputs and losses

Is this correct?: inputs: -fertilizers -sulfate on soil minerals -sulfate on clays -animal/human waste losses: -runoff -erosion -leaching -volatilization

organic matter and plant residues supply sulfur. so does the atmosphere, through dry deposition and acid rain. since S is a macronutrient and a constituent of some amino acids (proteins) there is loss through plant removal as well.

Thanks