manufacturers of anionic polyacrylamide effects on soil sorption in europe

manufacturers of anionic polyacrylamide effects on soil sorption in europe
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  • What is ionic polyacrylamide (PAM)?
  • Anionic polyacrylamide (PAM) has been sold since 1995 to reduce irrigation‐induced erosion and enhance infiltration.
  • Does soil texture affect Pam sorption?
  • Lu et al. (2002a) found that PAM sorption isotherms on soil materials could be described well by the Langmuir equation and that soil texture, organic mater content, and dissolved salts all influenced the extent of PAM sorption.
  • Does Pam affect the sorption of 2 4 dichlorophenoxyacetic acid and atrazine?
  • Watwood and Kay‐Shoemake (2000) investigated the impact of PAM on the sorptive dynamics and degradation of 2,4‐dichlorophenoxyacetic acid (2,4‐D) and atrazine in soils where PAM had been used for erosion control for 5 years. In their study sorption of atrazine and 2,4‐D in soil was unaffected by PAM treatment, as was atrazine desorption.
  • Does polyacrylamide reduce sediment in irrigation?
  • PAM, used following NRCS guidelines (Interim conservation practice standard—irrigation erosion control (polyacrylamide), 1995, Anionic polyacrylamide (PAM) erosion control (Acre)‐code 450 USDA‐NRCS, NHCP, 2001), reduced sediment in runoff 94% in 3 years of furrow irrigation studies in Idaho (Lentz and Sojka, 1994).