Do polyacrylamide based water retention agents affect soil water holding capacity?

Results showed that polyacrylamide (PAM)-based water retention agents coupled with brackish water had a promoting effect on soil water holding capacity; however, PAM-based water retention agents and brackish irrigation water were positively correlated with the proportion of soil with smaller and larger pores, respectively.

Does water retention agent mixing affect soil electrical conductivity?

S 0. 0 8 inhibited salt accumulation on the soil surface and effectively promoted uniform salt distribution. Water retention agent mixing levels were positively correlated with soil electrical conductivity.

Does brackish irrigation water affect soil temperature variation?

Brackish irrigation water increased the daily temperature variation of the 0–10-cm surface soil, and brackish irrigation water was negatively correlated with the daily temperature variation of the deeper soil (20–50 cm). The peaks of daily temperature variation in the 0–20- and 30–50-cm soil layers were observed under W 5 and W 3, respectively.

Does a PAM-based water retention agent reduce temperature fluctuations?

Applying a PAM-based water retention agent narrowed the range of temperature fluctuations, especially under S 0. 0 8 in the 0–20-cm soil layers and under S 0. 1 in the 30–50-cm soil layers.