Effect of Polyacrylamide Application on Water and Nutrient Movements in Soils

Kim, Minyoung; Song, Inhong; Kim, Min-Kyeong; Kim, Seounghee; Kim, Young‐Jin; Choi, Young-Hun; Seo, Myung-Chul

doi:10.4236/jacen.2015.43008

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…However, the lowest peak concentration of the breakthrough curve was found in B2P1, and it suggested the lowest solute transport path. It indicated that the addition of PAM affected soil retention and solute transport, which was similar to the result by Kim et al (2015). Soil salt transport was also correlated with soil microstructure.…”

Section: Discussionsupporting

confidence: 89%

Roles of soil amendments in the water and salt transport of coastal saline soils through regulation of microstructure

Fei,

She,

et al. 2024

Land Degrad Dev

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Increasing scientific knowledge on the improvement of coastal saline soils is critical for spatially expanding coastal development. Biochar and polyacrylamide (PAM) are popular soil amendments, however, it remains unclear how they affect water and salt transport by regulating soil microstructure characteristics. In this study, we conducted a five‐year rice barrel trial and investigated the changes in the aggregates and microstructure of saline soils after adding biochar with three different application rates (B1 = 0%, B2 = 2%, and B3 = 5%, mass ratio) and PAM with three different application rates (P1 = 0%, P2 = 0.4‰, and P3 = 1.0‰, mass ratio), and simulated the water and salt transport. Results showed that at B1 and B2 treatments, soil μ‐CT porosity in 2020 increased by 89.8% and 208.0%, respectively, with respect to that in 2016. The development of soil mesopore structure was promoted at B2 treatments, whereas the P2 and P3 treatments promoted the development of the soil macrostructure. Compared with those of the blank control, soil internal mean water flow rate increased by 22.2% at B2 treatments and 69.2% at P2 treatments, respectively. However, their increases were less pronounced at B3 treatments and the water flow rate decreased by 50.5% at P3 treatments. It might be reasonably attributed to the reason that porous biochar helped the formation of soil pore structure while an excessive amount of biochar blocked soil pores. Furthermore, PAM amendment helped to form soil aggregates while an excessive amount of viscous PAM might block soil pores or form a viscous layer. The time corresponding to the maximum salt concentration was negatively correlated with soil μ‐CT porosity (R2 = 0.27) and pore connectivity density (R2 = 0.29). Our findings indicate that appropriate amounts of biochar and PAM can help improve saline soil structure in coastal areas, improve their hydraulic properties, and alleviate salt stress.

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Section: Discussionsupporting

confidence: 89%

Roles of soil amendments in the water and salt transport of coastal saline soils through regulation of microstructure

Fei,

She,

et al. 2024

Land Degrad Dev

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“…Several studies showed that, small rate of synthetic organic polymers, including anionic polyacrylamide (PAM), can improve soil structure and aggregate stability, bonding between adjacent aggregates and clay flocculation (Peterson et al, 2002;Graber et al, 2006;Sojka et al, 2007). Application of PAM improved vertical movement of soil water and major/minor nutrients (NH 3 -N, P, K, Ca, Mg, and Fe) which enhanced the nutrient availability for plants (Kim et al, 2015)…”

Section: Discussionmentioning

confidence: 99%

Effect of Fine Soil Particles, Tillage Systems and Polyacrylamide on Wheat Production and Some Soil Chemical Properties in Arid Regions

2017

Multi-Disciplinary Manila (Philippines) Conferences Jan. 23-24, 2017, Manila (Philippines)

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A field experiment was carried out at the Agriculture Research Station of King Abdulaziz University to study the effects of fine soil particles, tillage system and polyacrylamide on wheat production and some soil chemical properties. The design of the experiment was a split-split plot with four replications. The main plot included two soils A and B, (A with 25.2 % silt+ clay while B with 38.5 % silt+ clay). Sub plot included three tillage systems namely: No-tillage (NT), Moldboard ploughing with rotor tiller (CT1) and Chisel ploughing with disk harrow (CT2). The sub-sub plot included three polyacrylamide (PAM) rates and were 0, 10 and 20 kg/ha. The obtained results indicated that soil of location B was better than the soil A because wheat production in location B was significantly higher than that of location A. CT2 produced the highest grain yield for wheat crop followed by NT and CT1 tillage systems respectively. Application of different rates of PAM (10 and 20 kg/ha) increased yield production compared with 0 kg/ha. Soil nutrients including N, P and K were significantly increased in the soil of location B compared to location A. The nutrients also increased by increasing PAM rates in both locations.

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“…Previous studies revealed that water-absorbing soil amendment might improve soil structure, raise water storage, increase irrigation water use efficiency, and decrease other water-related limitations (Salim, 2015;Maghchiche et al, 2010;Huettermann et al, 2009). WRA also reduces soil nutrients loss (Roshanizarmehri et al, 2018;Xuefeng et al, 2017;Kim et al, 2015;Jiang et al, 2010); thus, WRA application on arable land is a technique that may facilitate in growing healthy crops such as tobacco and enhances good quality harvest. Polyacrylamide is a synthetic hydrogel polymer that has considerably shown its effectiveness in improving soil physical condition and water retention capacity among other WRA (Maghchiche et al, 2010;Green and Stott, 2001;Seybold, 1994).…”

Section: Introductionmentioning

confidence: 99%

Combined effects of water retaining agent and green manure on trace elements concentration in tobacco farming purple soils

Angelique¹,

Dan²,

Ye³

et al. 2022

Afr. J. Agric. Res.

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Green manure (GM) is widely adopted for agricultural productivity and sustainability. The present study supplemented the GM effect with that of water retaining agent (WRA) to enhance the sustainability of tobacco planting purple soils in Sichuan Province, China. The study employed three GM legumes varieties (Trifolium repens, Vicia villosa and Medicago sativa), while the WRA used was polyacrylamide at different application rates (0, 30, 90, 150 and 210 kg/ha). The results revealed that the average concentration of trace elements ranged from 0.86 to 1.18 mg/kg, 22.2 to 26.5 g/kg, 78 to 426 mg/kg, 16 to19 mg/kg, and 69 to 76 mg/kg for Mo, Fe, Mn, Cu, and Zn, respectively. Compared to actual soil concentration, Mn was increased by adding 150 or 210 kg/ha to M. sativa fertilized soil. Zn was increased by combining any WRA rate with V. villosa or 150 kg/ha WRA with T. repens. The combination of 90 kg/ha WRA with M. sativa, and 30 kg/ha WRA with either T. repens or V. villosa decreased Fe. Then, all the treatments reduced soil Mo and Cu. Therefore, these GM and WRA affected the soil environmental conditions associated with different responses of individual soil trace elements.

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Effect of Polyacrylamide Application on Water and Nutrient Movements in Soils

Cited by 7 publications

References 7 publications

Roles of soil amendments in the water and salt transport of coastal saline soils through regulation of microstructure

Roles of soil amendments in the water and salt transport of coastal saline soils through regulation of microstructure

Effect of Fine Soil Particles, Tillage Systems and Polyacrylamide on Wheat Production and Some Soil Chemical Properties in Arid Regions

Combined effects of water retaining agent and green manure on trace elements concentration in tobacco farming purple soils

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