Does polyacrylamide application rate affect soil erosion and nutrient loss?

A laboratory research experiment under simulated heavy rainfall with tap water was conducted to investigate the effects of anionic polyacrylamide (PAM) application rates (0, 0.5, 1.0, and 2.0 g m −2) and molecular weights (12 and 18 Mg mol −1) on runoff, soil erosion, and soil nutrient loss at a slope of 5°.

What is an anionic polyacrylamide (PAM)?

The use of soil amendments, including anionic polyacrylamide (PAM), is one of many options for protecting soil resources. In most applications, anionic polyacrylamide (PAM) is often used as a soil amendment to manage infiltration, runoff and soil erosion (Entry and Sojka, 2003, Lentz et al., 1998, Lentz et al., 2001, Sojka et al., 1998).

What is a low molecular weight Pam?

Lower molecular weight PAMs (30,000 g mol −1) remain fluid even at 50% concentrations. However, the anionic PAMs commonly used for erosion control, infiltration management, and aggregate stabilization in soil since the early 1990s usually have molecular weights ranging from 12 to 15 Mg mol −1 and some products are available near 20 Mg mol −1.

Does polyacrylamide reduce water usage?

The well as reduced water usage. Polyacrylamide is economical problem areas in a field. Po lyacrylamide is effective in reducing runoff, erosion, and soil sealing. The construction industry has a great potential for PAM use. Whether used erosion. The potential for PAM use in erosion control properties of PAM and its interaction with soil.

Are anionic high molecular weight polymers good for erosion control?

Nonetheless, many of the general principles are worth noting as a framework for understanding the behavior of anionic high molecular weight PAMs, the dominant class of polymers for erosion control and infiltration management in agriculture.

Does polyacrylamide protect soil resources?

Use of soil amendments, including anionic polyacrylamide (PAM), is one of many options for protecting soil resources. Polyacrylamide has been the focus of a substantial amount of research in the 1990s. Our objective is to present a review of the recent findings and advancements in PAM work.