gypsum and polyacrylamide soil amendments used with high in singapore

gypsum and polyacrylamide soil amendments used with high in singapore
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  • What are polyacrylamide (PAM) soil amendments?
  • Degraded lands resulting from human and natural causes are widespread in arid and semiarid regions throughout the world. Polyacrylamide (PAM) soil amendments are increasingly used to remediate these degraded lands with the potential benefits on soil health and crop production.
  • Does polyacrylamide reduce soil erosion?
  • Soil amendments like anionic polyacrylamide (PAM), which is a synthetic polymer, non-toxic, and environmentally friendly can reduces runoff and soil erosion (Sojka et al., 2007 ), although, its effectiveness in reducing runoff and soil loss can be enhanced when PAM is applied in combination with lime and gypsum (Kebede et al., 2025 ).
  • Does polyacrylamide reduce soil nutrient depletion?
  • Polyacrylamide (PAM) mitigates soil nutrient depletion and increases nutrient utilization; however, the effect of PAM combined with other amendments have not been tested much under field condition.
  • Can polyacrylamide improve soil fertility and crop yield?
  • Improving soil fertility and crop yield through application of soil amendments such as polyacrylamide (PAM), lime, gypsum, and biochar to agricultural land has emerged as a strategy in numerous countries (Agegnehu et al. 2016; Lee et al. 2015; Sojka et al. 2007). PAM is non-toxic and environ-mentally friendly (Entry et al. 2008; Song et al. 2018).