Nitrate retention and physiological adjustment of maize to soil amendment with superabsorbent polymers

Eneji, A. Egrinya; Islam, Rabiul; An, Ping; Amalu, Uche C.

doi:10.1016/j.jclepro.2013.02.027

Cited by 64 publications

(16 citation statements)

References 34 publications

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“…Similarly, at 180 kg ha −1 (0.008% BM) SAP wet and dry application there was a significant increase in WHC from 11.6% to 15.8−16.2% at the stem elongation growth stage (Dehkordi, 2018). Similar increases were seen at the heading and doughing stages (Dehkordi, 2018), SAP application of 0.05, 0.1, 0.2, and 0.3% increased WC. In a sandy soil undergoing wetting and drying cycles soil WC increased by 6.2−32.8% relative to the control (Bai et al, 2010).…”

Section: Soil−water Dynamicsmentioning

confidence: 62%

“…With 200 kg ha −1 of wet and dry SAP treatments applied to a loam soil surface, WC increased significantly for jointing, booting and grainfilling stages of wheat growth from 13% to 14.8−15.2%, 10% to 12−13.9% and 6% to 9.8−10.1% (Li et al, 2014). Similarly, at 180 kg ha −1 (0.008% BM) SAP wet and dry application there was a significant increase in WHC from 11.6% to 15.8−16.2% at the stem elongation growth stage (Dehkordi, 2018). Similar increases were seen at the heading and doughing stages (Dehkordi, 2018), SAP application of 0.05, 0.1, 0.2, and 0.3% increased WC.…”

Section: Soil−water Dynamicsmentioning

confidence: 92%

“…Under water stress conditions SAPs have a greater influence on plant productivity (Fazeli Rostampour et al., 2013; Egrinya Eneji et al., 2013) compared with nonstressed conditions. Sorghum [ Sorghum bicolor (L.) Moench] dry matter only increased when there was a water deficit in sandy loam soil with SAP application rate of 75, 150 or 225 kg ha −1 (0.003, 0.007, 0.015% BM) (Fazeli Rostampour et al., 2013).…”

Section: Superabsorbent Polymer Effects On Soil Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

Superabsorbent polymer characteristics, properties, and applications

Ostrand

DeSutter

Daigh

et al. 2020

Agrosystems Geosci & Env

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Superabsorbent polymers (SAPs) are materials that can absorb significant amounts of water relative to their mass. The nature and properties of SAPs make them a widely utilized material across many disciplines. A systematic review was conducted to examine the use of SAPs within agriculture and environmental science. The method of application, rate, and the subsequent impact on soil properties were determined. Superabsorbent polymers can be used to improve and prolong soil water holding capacity, decrease drought stress, and increase time between irrigation events. There are results indicating SAPs can reduce compaction. Yield and plant growth characteristics were improved for all but one of the reviewed studies. While SAPs show potential as a tool, their economic feasibility on large‐scale and long‐term projects should be evaluated.

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Section: Soil−water Dynamicsmentioning

confidence: 62%

Section: Soil−water Dynamicsmentioning

confidence: 92%

Section: Superabsorbent Polymer Effects On Soil Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Superabsorbent polymer characteristics, properties, and applications

Ostrand

DeSutter

Daigh

et al. 2020

Agrosystems Geosci & Env

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“…The objective of irrigation systems and soil additives is to slow down those processes in order to minimize possible drought stress exerted on plants [59]. Water deficit is one of the factors triggering plant stress, especially in connection with nitrogen availability [65,66]. Drought stress affected plants might display slower growth, reduced biomass production, and in the worst scenario even a wilting process [67][68][69].…”

Section: Introductionmentioning

confidence: 99%

The Influence of a Water Absorbing Geocomposite on Soil Water Retention and Soil Matric Potential

Śpitalniak

Lejcuś

Dąbrowska

et al. 2019

Water

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Climate change induces droughts that are becoming more intensive and more frequent than ever before. Most of the available forecast tools predict a further significant increase in the risk of drought, which indicates the need to prepare solutions to mitigate its effects. Growing water scarcity is now one of the world’s leading challenges. In agriculture and environmental engineering, in order to increase soil water retention, soil additives are used. In this study, the influence of a newly developed water absorbing geocomposite (WAG) on soil water retention and soil matric potential was analyzed. WAG is a special element made from geotextile which is wrapped around a synthetic skeleton with a superabsorbent polymer placed inside. To describe WAG’s influence on soil water retention and soil matric potential, coarse sand, loamy sand, and sandy loam soils were used. WAG in the form of a mat was used in the study as a treatment. Three kinds of samples were prepared for every soil type. Control samples and samples with WAG treatment placed at depths of 10 cm and 20 cm were examined in a test container of 105 × 70 × 50 cm dimensions. The samples had been watered and drained, and afterwards, the soil surface was heated by lamps of 1100 W total power constantly for 72 h. Soil matric potential was measured by Irrometer field tensiometers at three depths. Soil moisture content was recorded at six depths: of 5, 9, 15, 19, 25, and 30 cm under the top of the soil surface with time-domain reflectometry (TDR) measurement devices. The values of soil moisture content and soil matric potential were collected in one-minute steps, and analyzed in 24-h-long time steps: 24, 48, and 72 h. The samples with the WAG treatment lost more water than the control samples. Similarly, lower soil matric potential was noted in the samples with the WAG than in the control samples. However, after taking into account the water retained in the WAG, it appeared that the samples with the WAG had more water easily available for plants than the control samples. It was found that the mechanism of a capillary barrier affected higher water loss from soil layers above those where the WAG had been placed. The obtained results of water loss depend on the soil type used in the profile.

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“…A major advantage of using SAP is its ability to make use of moisture present in soil such as clay, and make it available to the roots. SAP amended soils have better nutrient release, high nitrification, reduced microflora and bacterial content [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Superabsorbent Polymers from Used Disposable Diapers as Soil Moisture Conditioner

Orozco¹,

Timoteo-Cruz²,

Torres-Blancas³

et al. 2017

Preprint

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This study was conducted to explore the potential of superabsorbent polymers (SAPs) from used disposable diapers as soil moisture conditioner. Swelling behavior of the proposed hydrogel in response to external stimuli such as salt solutions, temperature and pH was studied. In addition, laboratory experiments were carried out to evaluate the effects of incorporation hydrogel on germination of bean (Phaseolus vulgaris L.) and pumpkin (C. pepo) seeds. The structure of the superabsorbent was characterized by Fourier transform infrared spectroscopy (FTIR). The results indicate that the proposed SAP exhibited a maximum swelling capacity of 189 g⋅g -1 of dry gel. It was observed that the swelling capacity decreased with an increase in the ionic strength of the swelling medium. When this SAP was mixed with sandy soil, the mixture was able to lose water more slowly. The seeds germination and seedling growth was remarkably influenced by the application of 0.5, 1.0 and 2.0 w/w% of SAP compared to the untreated soil. Therefore, it follows that it is possible to take advantage of SAPs property from used disposable diapers to retain the moisture in soil as an alternative to value the use of such waste, showing that it has potential for diverse applications in agriculture.

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Nitrate retention and physiological adjustment of maize to soil amendment with superabsorbent polymers

Cited by 64 publications

References 34 publications

Superabsorbent polymer characteristics, properties, and applications

Superabsorbent polymer characteristics, properties, and applications

The Influence of a Water Absorbing Geocomposite on Soil Water Retention and Soil Matric Potential

Valorization of Superabsorbent Polymers from Used Disposable Diapers as Soil Moisture Conditioner

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