Effect of polymer water retaining agent on physical properties of silty clay

Huang, Wei; Lai, Haoqiang; Du, Jiaxin; Zhou, Cuiying; Liu, Zhen; Ni, Qian

doi:10.1186/s40538-022-00309-z

Cited by 13 publications

(14 citation statements)

References 21 publications

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“…The primary characteristics of water-absorbing ester compounds are high water absorption capacity and low water release volume contraction [ 29 ]. According to the group’s past research and engineering experience, ester materials have good ecological restorative effects [ 30 , 31 ], in terms of both the bonding of adhesive ester materials and the water retention of water-absorbent ester materials, both of which jointly improve the overall performance of the soil during the interaction process. Studies on ecological restoration indices using ester materials are listed in Table 1 .…”

Section: Research Content and Methodsmentioning

confidence: 99%

The performance of partially substituted composite ester materials with weathered red-bed soil in ecological restoration

Liu,

Wu,

Liao

et al. 2024

PLoS ONE

Self Cite

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Ester materials have become a significant topic in ecological restoration because of their degradability and lack of pollution. However, these artificial materials have issues such as high resource consumption and high cost. Therefore, finding a scientific substitute for ester materials is crucial to reduce costs. This study proposes the use of weathered red-bed soil to partially replace ester materials. Orthogonal coupled compounding and ecological effect tests were performed to analyze the soil improvement mechanism based on the mineral composition, soil structure, and electrical conductivity properties of the weathered red-bed soil. The experimental findings indicated that the soil modified using ester materials exhibited improved strength, water retention, and aeration owing to changes in the soil structure. Plant germination and height increased by 55% and 37 mm, respectively, when using a ratio of 15 g/m2 absorbent ester material, 2.5 g/m2 adhesive ester material, and 5% weathered red-bed soil. Through this approach, the amount of ester material to be used could be further reduced by 75%. The weathered red-bed soil offers improved ecological effects by altering the physical, mechanical, and hydraulic properties of the soil structure. This study presents a theoretical foundation for ecological conservation using weathered red-bed soil as a substitute for certain ester materials.

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Section: Research Content and Methodsmentioning

confidence: 99%

The performance of partially substituted composite ester materials with weathered red-bed soil in ecological restoration

Liu,

Wu,

Liao

et al. 2024

PLoS ONE

Self Cite

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Section: Introductionmentioning

confidence: 99%

“…Water-retaining agents (WRAs) are high-molecular cross-linked polymers that can improve the water-holding capacity of the soil [11,12]. When mixed with soil, WRAs can improve its physical properties by reducing soil bulk density and increasing soil aggregation, permeability, porosity, and water-retention capacity [11,13]. WRAs are soil improvers that can decrease soil strength and aggregate stability, which can enhance soil and water conservation and encourage plant development [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…When mixed with soil, WRAs can improve its physical properties by reducing soil bulk density and increasing soil aggregation, permeability, porosity, and water-retention capacity [11,13]. WRAs are soil improvers that can decrease soil strength and aggregate stability, which can enhance soil and water conservation and encourage plant development [11][12][13]. Water-retaining compounds are currently used by many crop growers, and the outcomes are favorable [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…WRAs are soil improvers that can decrease soil strength and aggregate stability, which can enhance soil and water conservation and encourage plant development [11][12][13]. Water-retaining compounds are currently used by many crop growers, and the outcomes are favorable [11,12]. WRAs can improve fertilizer utilization, decrease nutrient loss, and increase soil nutrient absorption [12].…”

Section: Introductionmentioning

confidence: 99%

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Water-Retaining Agent as a Sustainable Agricultural Technique to Enhance Mango (Mangifera indica L.) Productivity in Tropical Soils

Zang,

Yun,

Wang

et al. 2024

Agronomy

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Reducing fertilizer doses under sustainable agricultural management is possible by increasing nutrient utilization efficiency, which will decrease crop production costs and boost economic return. Soil amendments known as water retention agents (WRAs) are added to the soil to enhance crop growth conditions. We hypothesize that the addition of WRAs may support the soil-retaining nutrients given through fertilization and prevent them from leaching into tropical soils characterized by severe rainfall due to WRAs’ exceptional capacities to absorb and store water. Mango trees (Mangifera indica L. cv Tainong No. 1) aged 18 years were fertilized with 100% or 80% of the recommended doses of nitrogen (N), phosphorus (P), and potassium (K). The experimental design included three treatments, i.e., complete recommended doses of N, P, and K (CRF), 80% of the complete recommended doses (RRF), and water-retaining agent (40 kg ha−1) + 80% of the complete recommended doses (WRARRF). Reducing the fertilization doses by 20% for mango trees in the studied tropical soil significantly (p < 0.05) minimized the nutrient availability in the soil compared to the complete fertilization doses. WRARRF compensated for the nutrient reduction by increasing the availability of N, P, and K. The addition of WRARR increased N, P, and K in mango leaf by 11%, 4%, and 7% in the first year and by 11%, 6%, and 7% in the second year, respectively, compared to CRF. The addition of WRARR increased the partial fertilizer productivity (PFP) value by 36% and 41% in the first and second years, respectively. The highest mango fruit output was achieved by the addition of WRARRF, which resulted in increases in mango fruit yield of 11.9% and 16.5% in the first and second years, respectively, compared to RRF. Fruit quality traits showed the descending order: WRARRF > RRF > CRF. WRARRF produced the maximum economic benefit (USD 7372 per hectare) compared to CRF and RRF. The polyacrylamide/attapulgite water-retaining agent exhibited remarkable improvement in mango fruit yield and economic profit by regulating the release of nutrients in tropical soils. Water-retaining agents are an effective strategy for overcoming the extensive fertilization used in mango orchards, which has resulted in numerous environmental contaminations and the inefficient use of fertilizers.

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Preparation of carbon-based material with high water absorption capacity and its effect on the water retention characteristics of sandy soil

Yang,

Zhong,

Bian

et al. 2023

Biochar

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Biochar has the potential to provide a multitude of benefits when used in soil remediation and increasing soil organic matter enrichment. Nevertheless, the intricated, hydrophobic pores and groups weaken its water-holding capacity in dry, sandy soils in arid lands. In order to combat this issue, starch-carbon-based material (SB), sodium alginate-carbon-based material (SAB), and chitosan-carbon-based material (CB) have been successfully synthesized through the graft-polymerization of biochar (BC). A series of soil column simulations were used to scrutinize the microstructure of the carbon-based material and explore its water absorption properties and its effects on sandy soil water infiltration, water retention, and aggregation. The results indicated that SB, SAB, and CB achieved water maximum absorption rates of 155, 188, and 172 g g−1, respectively. Considering their impact on sandy soils, SB, SAB, and CB lengthened infiltration times by 1920, 3330, and 3880 min, respectively, whilst enhancing the water retention capabilities of the soil by 18%, 25%, and 23% in comparison to solely adding BC. The utilization of these innovative materials notably encouraged the formation of sandy soil aggregates ranging from 2.0 to 0.25 mm, endowing the aggregates with enhanced structural stability. Findings from potting experiments suggested that all three carbon-based materials were conducive to the growth of soybean seeds. Thus, it is evident that the carbon-based materials have been fabricated with success, and they have great potential not only to significantly augment the water retention capacities and structural robustness of sandy soils in arid areas, but also to bolster the development of soil aggregates and crop growth. These materials possess significant application potential for enhancing the quality of sandy soils in arid and semi-arid regions. Graphical Abstract

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Effect of polymer water retaining agent on physical properties of silty clay

Cited by 13 publications

References 21 publications

The performance of partially substituted composite ester materials with weathered red-bed soil in ecological restoration

The performance of partially substituted composite ester materials with weathered red-bed soil in ecological restoration

Water-Retaining Agent as a Sustainable Agricultural Technique to Enhance Mango (Mangifera indica L.) Productivity in Tropical Soils

Preparation of carbon-based material with high water absorption capacity and its effect on the water retention characteristics of sandy soil

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