Evaluating Hydrogel Application on Soil Water Availability and Crop Productivity in Semiarid Tropical Red Soil

Mandal, Uttam Kumar; Sharma, K.L.; Venkanna, K.; Korwar, G. R.; Reddy, K. Sammi; Pushpanjali, .; Reddy, N. N.; Venkatesh, G.; Masane, Rahul N.; Yadaiah, P.

doi:10.5958/2231-6701.2015.00018.4

Cited by 13 publications

(9 citation statements)

References 13 publications

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“…The large quantities of water and nutrients retained near the rhizosphere zone with hydrogel applications are released in synchrony with plant demand ( Bhardwaj et al., 2007 ). The hydrogel enables water and nutrient extraction from wider and deeper soil depths by plants, and thereby, increases nitrogen, phosphorus, potassium, calcium, and magnesium uptake resulting in better growth and yield attributes ( Mandal et al., 2015 ). The increasing order of the reduction in TSW from sufficient to deficit irrigation and rainfed condition with hydrogel application is indicative of a larger advantage of hydrogel use under moisture-stressed environments.…”

Section: Discussionmentioning

confidence: 99%

Mitigating moisture stress in Brassica juncea through deficit irrigation scheduling and hydrogel in ustocherpts soils of semi-arid India

Rathore

Shekhawat

Singh

2020

Heliyon

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A field experiment was conducted to study the effect of irrigation scheduling and use of superabsorbent polymers on growth, seed and water productivity, soil moisture dynamics in Indian mustard under semi-arid conditions. During the first year of the study, the increase in the mustard seed yield with irrigations applied at IW/CPE (Irrigation water, mm/Cumulative Pan Evaporation, mm (CPU) ratios 0.8, 0.6, 0.4 and no-irrigation (rainfed) with hydrogel application (+HG) was 18.6, 17.9, 14.4 and 28.3%, respectively, over no hydrogel (-HG). The seed yield enhancement by hydrogel application during the second year varied from 3% under sufficient irrigation to 24.9% under rainfed conditions. The pooled data indicated that the production indices and economics with hydrogel use improved significantly (P ≤ 0.05) under limited irrigation or rainfed condition. A net increase of 38, 27.7, and 10.7%, in production efficiency (PE), the net return, and profitability of mustard respectively was observed due to the use of hydrogel improved under the rainfed condition. Under limited irrigation (single irrigation at IW/CPE 0.4), a net increase of 24.2 and 31.8%, in the marginal and gross water productivity of mustard respectively, was recorded with hydrogel use. Similarly, in rainfed conditions, hydrogel increased gross water productivity by 22.6%. The energy intensity under irrigations scheduled at IW/CPE 0.8, 0.6, 0.4, and rainfed condition, was enhanced by 4.9, 5.9, 6.7, and 10.5%, respectively, due to hydrogel application. Thus, the use of hydrogel both under the rainfed condition and deficit irrigation has the potential to enhance productivity, profitability, and bio-energy output of Indian mustard in semi-arid agro-ecologies.

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Section: Discussionmentioning

confidence: 99%

Mitigating moisture stress in Brassica juncea through deficit irrigation scheduling and hydrogel in ustocherpts soils of semi-arid India

Rathore

Shekhawat

Singh

2020

Heliyon

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“…Application of suitable soil conditioner to enhance soil properties has become progressively common solution (Bhardwaj et al, 2007). One of the means is the use of super absorbent polymers (SAPs), which absorbs and retains water, consequently, prevents/reduces water loss by percolation and act as a water reservoir in the root zone (Mandal et al, 2016;Thombare et al, 2018). The SAPs are hydrophilic, three-dimensional, cross-linked functional polymeric, which are able to absorb water equivalent to a hundred times of their own weight, and are not dissolved in water (Buchholz, 1998;Sinha, 2018).…”

Section: Introductionmentioning

confidence: 99%

Influence of Hydrogel Type and Concentration, and Water Application Rate on some Hydraulic Properties of a Sandy Soil

Abdallah

2019

Alexandria Science Exchange Journal

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Water percolation and storage in a model sandy soil amended with four superabsorbent polymers (SAPs) was investigated using drip irrigation with two discharge rates. Superabsorbent polymers (Watersorb, Ag-SAP, Tera-Gel and Water-crystals) were mixed with the soil at three concentrations [0.2% or 0.4% (W/W) and control (0.0%)]. All soil columns received a fixed amount of water at two discharges i.e., 2.0 or 4.0 L h -1 . The percentages of percolated and retained water (relative to total water applied), gravimetric soil water content (G-wc) and bulk density (BD) were determined. All SAPs, at any concentration and water application rate, reduced the percentage of percolated water (PPW) and BD and increased the total soil porosity (TP). The reduction of PPW resulted in increases in soil water storage that were proptional to SAPs concentration. Under low water application rate, SAPs were more efficient as compared with high water application rate, because SAPs had enough time to reach their maximum water absorption capacity (WAC). At a SAPs concentration of 0.4% and low water application rate, Watersorb, Tera-gel and Ag-sap were acting equally and were best performing, as the G-wc increased by 2.6 folds compared to control. However, at the high water application rate, SAPs with higher water absorption rate "WAR" (Watersorb) worked best, as its particles swell faster. It can be concluded that, WAC of SAPs is important when irrigation water application rate is low and at high water application rate, WAR would be the most important property allowing SAPs to reach complete water absorption during short irrigation duration.

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“…The highest and lower grain yield was recorded when applied hydrogel and no polymers respectively. The yield was increased by 7.41% and 1.15% by application of hydrogel and gondkatira over to no polymer might be due to the water availability for the early growth of seeds under dry conditions and, therefore, prevent associated delays in the emergence and prolong water availability supported by Mandal et al (2015) and Shweta et al (2022).…”

Section: Resultsmentioning

confidence: 90%

Wheat (Triticum aestivum) crop response to irrigation scheduling and super absorbent polymers

et al. 2022

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A field experiment was conducted at research farm of CCS Haryana Agricultural University, Hisar, Haryana during winter (rabi) season 2018–19 and 2019–20 with an objective to study the polymers with irrigation effect on wheat (Triticum aestivum L.) crop. The research was done in a split-plot design with four irrigation [(No irrigation (I0), One irrigation at CRI stage, crown root initiation stage; (I1), Two irrigation at CRI, Booting (I2), Three irrigation at CRI, Booting, milking (I3)] and three polymer treatments [(No polymers (P0), Gondkatira @5 kg/ha (P1), Pusa Hydrogel @2.5 kg/ha (P2)] in the main and subplot respectively. The wheat seed yield decreased by 11.90% from I3 to I2, 17.12% from I3 to I1, and 33.74% from I3 to I0. The polymer treatment was used to increase the wheat seed yield. The yield was increased by 7.41% and 1.15% by application of hydrogel and gondkatira over no polymer. The minimum water productivity was registered under three irrigations. The application of gondkatira in wheat increased the water productivity by 8.09% while hydrogel 11.56%. Water stress or no irrigation has a lower Fv/Fm (Maximum quantum efficiency of PS II) (0.73) ratio than to no stress or three irrigations (0.75).

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Evaluating Hydrogel Application on Soil Water Availability and Crop Productivity in Semiarid Tropical Red Soil

Cited by 13 publications

References 13 publications

Mitigating moisture stress in Brassica juncea through deficit irrigation scheduling and hydrogel in ustocherpts soils of semi-arid India

Mitigating moisture stress in Brassica juncea through deficit irrigation scheduling and hydrogel in ustocherpts soils of semi-arid India

Influence of Hydrogel Type and Concentration, and Water Application Rate on some Hydraulic Properties of a Sandy Soil

Wheat (Triticum aestivum) crop response to irrigation scheduling and super absorbent polymers

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