Does polyacrylamide stabilize soil structure?

Costly repairs and reshaping of slopes as well as sedimentation and water pollution result in environmental and economic losses to the general public as well as the contractor. Polyacrylamide (PAM) can stabilize soil structure but does not remediate poor soil structure.

Why is polyacrylamide used in rain-fed agriculture?

The increased infiltration results in less runoff and erosion as well as reduced water usage. Polyacrylamide is economical under certain conditions in rain-fed agriculture such as on soils used for high value crops as well as management of problem areas in a field. Polyacrylamide is effective in reducing runoff, erosion, and soil sealing.

What are the environmental benefits of polyacrylamide?

Environmental benefits include reduced soil loss, reduced pesticide and fertilizer runoff. This enhances both soil and water quality, both on site and off site. Polyacrylamide is an alternative to traditional erosion control practices.

How does rain affect seedling emergence?

Soil crusting, surface sealing, and compaction can inhibit seedling emergence. Raindrops can impact the soil with such force that it compacts the soil, causing a structural crust. Additionally, the impact of the rain and the rapid wetting of the soil cause slaking, disrupting the integrity of the soil aggregate.

Why is polyacrylamide used in irrigation?

In rain-fed agriculture and sprinkler irrigation, PAM is used to reduce surface sealing and crusting as well as erosion. Polyacrylamide is also used to stabilize steep slopes in construction, highway cuts, and other disturbed soils. The economics of PAM use can encourage its use in many instances and discourage its use in others.

Does polyacrylamide reduce erosion?

Polyacrylamide provides substantial savings while controlling erosion and increasing vegetation establishment on construction sites. Using PAM in conjunction with other erosion control measures may also provide economical erosion control and warrants further investigation.