2Bowman D C.Evans R Y.Calcium inhibition of polyacrylimidegel hydration is partially reversible by potassium[J].Horty.Sci.,1991,26(8):1063-1065.
3Sojka R E,James A Entry,Jeffry J Fuhrmann.The influence of high application rates of polyacrylamide on microbial metabolic potential in an agricultural soil[J].Applied Soil Ecology,2006(32):243-252.
4Woodhouse J.Effect of superabsorbent polym ers on survival and grow th of crop seedings[J].Agricultural Water Management,1991(20):63-70.