Using Environmentally Friendly Hydrogels to Alleviate the Negative Impact of Drought on Plant

El-Aziz, Gehan H. Abd; Ibrahim, Ahmed S.; Fahmy, Alaa

doi:10.4236/ojapps.2022.121009

Cited by 12 publications

(9 citation statements)

References 43 publications

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“…In the present study, most hydrogel treatments had higher levels of ascorbic acid content in fruit juice compared to control, where the highest ascorbic acid content in fruit juice was noticed in the treatment of 750∙g∙tree −1 , as compared to the other treatments. These results are in line with Pattanaaik [ 36 ], who stated that adding hydrogel as a soil application enhances the ascorbic acid content in Khasi mandarin fruit [ 53 ]. From the above-mentioned results, it can be inferred that the application of hydrogel improved both the fruit’s physical and chemical properties, since the soil became wet for an extended period.…”

Section: Resultssupporting

confidence: 90%

Hydrogel Improved Growth and Productive Performance of Mango Trees under Semi-Arid Condition

Alshallash

Sharaf

Hamdy

et al. 2022

Gels

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Nowadays, the production of new mango cultivars is increased in many countries worldwide. The soil application of hydrogel represents a novel approach in the fruit trees industry. This investigation aims to study the effect of adding hydrogel (as soil conditioner) on the growth and yield of Shelly cv. mango trees. The experimental groups were assigned to a control group and three other treated groups, including 250, 500, or 750 g hydrogel∙tree−1. The results demonstrated that all applications of hydrogel composite had higher vegetative growth parameters, yield, and fruit quality characteristics of Shelly cv. mango trees compared to the control. The treatment of 750 g hydrogel∙tree−1 had higher values of vegetative growth parameters such as the leaf area, shoot length and tree canopy volume, compared to the control group and the other treatments. Similarly, higher values for yield and fruit quality were observed in the treatment of 750 g hydrogel∙tree−1. In conclusion, different amounts of hydrogel agent can improve the production and fruit quality of Shelly cv. mango trees in arid and semi-arid conditions in a dose-dependent manner.

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Section: Resultssupporting

confidence: 90%

Hydrogel Improved Growth and Productive Performance of Mango Trees under Semi-Arid Condition

Alshallash

Sharaf

Hamdy

et al. 2022

Gels

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“…Our results from field trials of gel-forming soil conditioners were in good agreement with known published data [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. Abd El Aziz et al [ 40 ] showed that an ecofriendly hydrogel based on starch and pectin in greenhouse experiments with tomatoes allowed for a reduction in irrigation by 25–50%, increasing soil water retention by 2–2.8 times.…”

Section: Discussionsupporting

confidence: 92%

“…Composite gel-forming soil conditioners can be successfully used to optimize edaphic properties and obtain sustainable crops and antipathogenic protection not only in urban landscaping, but also in agriculture [ 1 , 2 , 3 , 4 , 5 , 6 , 15 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. The next field trials of composite hydrogels with combined action (water retention, soil structuring, antipathogenic protection) were carried out in Uzbekistan on potato farms.…”

Section: Resultsmentioning

confidence: 99%

“…In most cases, negative environmental factors are completely ignored and only the positive effects of new composite materials are studied, mainly in laboratory experiments. Comprehensive field tests of synthesized materials in real soil and climatic conditions are carried out quite rarely [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. Their results are often contradictory, especially regarding the effective doses of gel-forming soil conditioners [ 4 , 34 , 37 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

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Gel-Forming Soil Conditioners of Combined Action: Field Trials in Agriculture and Urban Landscaping

et al. 2022

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The article summarizes multivariate field trials of gel-forming soil conditioners for agriculture and urban landscaping in various climatic conditions from arid (O.A.E., Uzbekistan) to humid (Moscow region, Russia). The field test program included environmental monitoring of weather data, temperature, water–air regimes, salinity, alkalinity, and biological activity of various soils (sandy and loamy sandy Arenosols, Retisols, loamy Serozems), productivity and yield of plants (lawns, vegetables) and their quality, including pathogen infestation. The evolutionary line of polymer superabsorbents from radiation-crosslinked polyacrylamide (1995) to the patented “Aquapastus” material (2014–2020) with amphiphilic fillers and biocidal additives demonstrated not only success, but also the main problems of using hydrogels in soils (biodegradation, osmotic collapse, etc.), as well as their technological solutions. Along with innovative materials, our know-how consisted in the intelligent soil design of capillary barriers for water accumulation and antipathogenic and antielectrolyte protection of the rhizosphere. Gel-forming polymer conditioners and new technologies of their application increase the productivity of plant crops and the quality of biomass by 30–50%, with a 1.3–2-fold saving of water resources and reliable protection of the topsoil from pathogens and secondary salinization. The results can be useful to a wide range of specialists from chemical technologists to agronomists and landscapers.

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“…Hydrogel can increase water use efficiency (WUE), which means the ratio of yield over crop water consumption is improved by reducing water loss in the soil via an increase in the soil's water-holding capacity, depending on the properties of the hydrogel polymer. As Abd El-Aziz et al [29] reported, polymers can absorb, hold and release water to meet the plant water requirement. This was demonstrated in an experiment where the water use efficiency of tomatoes was influenced by an eco-friendly hydrogel under various irrigation levels.…”

Section: Mitigation Of Water Scarcity Through Hydrogelmentioning

confidence: 99%

Superabsorbent Polymer Hydrogels for Sustainable Agriculture: A Review

et al. 2022

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Water management is rapidly becoming one of the most pressing issues facing all countries in semi-arid and arid parts of the world. Global water consumption is predicted to increase by 50% in 2030, resulting in an acute water shortage. Presently, the agricultural sector consumes more than 70% of freshwater in most regions of the world, putting more pressure on water scarcity. Hydrogels are superabsorbent polymers that can hold plant nutrients and water when the soil around plant roots starts to dry out. Research evidence has revealed that water stored by hydrogel slowly returns to the soil, thereby increasing the volumetric water content of the soil. Hydrogel increases water use efficiency and irrigation intervals, decreases irrigation costs, and provides plants with the required nutrients and moisture. Numerous properties of hydrogels, including moderate water retention and high swelling, make them ideal as a safe delivery mechanism in agriculture for soil conditioners and agents for the controlled release of fertilizers. Numerous research publications on hydrogel polymer synthesis and its characteristics have been published. However, the current review emphasizes the critical role of superabsorbent hydrogels in an integrated approach for the balanced protection of seeds, plants, and soil to conserve the ecosystem.

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Using Environmentally Friendly Hydrogels to Alleviate the Negative Impact of Drought on Plant

Cited by 12 publications

References 43 publications

Hydrogel Improved Growth and Productive Performance of Mango Trees under Semi-Arid Condition

Hydrogel Improved Growth and Productive Performance of Mango Trees under Semi-Arid Condition

Gel-Forming Soil Conditioners of Combined Action: Field Trials in Agriculture and Urban Landscaping

Superabsorbent Polymer Hydrogels for Sustainable Agriculture: A Review

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