Zinc-amino acid complexes are more stable than free amino acids in saline and washed soils

Zinc-amino acid complexes are more stable than free amino acids in saline and washed soils, Soil 

     Biology and Biochemistry, 2013, 63, pp. 73-79.

http://www.sciencedirect.com.scopeesprx.elsevier.com/science/article/pii/S0038071713001132