Improvement of Sandy Soils with Soil Conditioners

Al-Omran, A. M; Alharbi, Abdulaziz

doi:10.1201/9781003064688-17

Cited by 6 publications

(5 citation statements)

References 1 publication

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“…Hydrogel provides a reservoir of soil water in the root zone by preventing leaching and deep percolation losses ( Sow et al., 1997 ). The higher retention pores and low saturated hydraulic conductivity under hydrogel amended soil reduces the drainage pores ( Paluszek and Zembrowski 2008 ), thereby, maintain a higher moisture level ( Al-Darby 1996 ; Al-Omran and Al-Harbi 1998 ). This typical feature of intense water storage and release of hydrogels enables the sandy soil to retain more water ( Sivapalan, 2011 ) and provides a shield against temporary drought stress and reduces the risk of total crop failure ( DE Boot 1990 ; Langaroodi et al., 2013 ).…”

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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“…The volume of water infiltrated was recorded every 30 s until the water was emptied from the mini-disk infiltrometer. Cumulative infiltration was based on the Philip equation, shown in Equation ( 1), and the infiltration rate (i) was determined by Equation (2).…”

Section: Cumulative Infiltrationmentioning

confidence: 99%

“…Among these methods is the addition of soil amendments, whether natural such as biochar, or synthetic. They improve the physical, chemical, or biological properties of the soil [2]. Biochar is used to improve crop growth in sandy soils under unfavorable environmental conditions, such as drought, extreme high temperature, unfavorable soil pH, and low available water [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Biochar on Hydro-Physical Properties of Sandy Soil under Different Irrigation Regimes for Enhanced Tomato Growth

et al. 2022

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The performance of biochar application in water conservation, salt distribution, water infiltration, and tomato growth was evaluated under regulated deficit irrigation (RDI) (40%, 60% and 80% of ETc) and partial root drying (PRD) systems by using different quality irrigation water. Date palm derived biochar was applied to sandy soil at 4% (w/w) in pots, and tomato was grown as the test crop under greenhouse conditions. The results indicated that soil moisture was decreased by 27.38% to 24.95% without biochar application at different levels of irrigation, whereas it increased by 8.11% and 5.48% with biochar application, compared with control treatment of 100% of ETc. Soil moisture was decreased by 12.78%, 15.82% and 12.78% for the 1st stage, 2nd stage and 3rd growth stage, respectively, while it increased by 37.93% at the 4th growth stage compared with full irrigation. Soil salinity ranged between 0.5 and 1.4 dS·m−1 with biochar application, while 0.7–2.1 dS·m−1. Cumulative infiltration at one minute varied between 1.89 and 2.79 cm and 1.74 and 2.79 cm for biochar and non-biochar treatments, respectively. Infiltration rate varied from 0.98 to 2.63 cm min−1 and 1.48 to 1.68 cm·min−1 for fresh and saline water, respectively. Overall, the results revealed that biochar application substantially improved the characteristics of sandy soil, subsequently resulting in water conservation.

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“…SAP is a polymer ( Yang et al., 2005b ), which can improve the structure of the soil ( Terry & Nelson, 1986 ; Sojka et al., 2007 ), and promote the formation of aggregates ( Yang et al., 2009a ; Yang et al., 2021 ). SAP is known to be a “water reservoir” ( Dorraji et al., 2015 ), and can absorb hundreds or even thousands of times its mass of water when sufficient water is present ( Sojka and Entry, 2000 ; Dong et al., 2004 ; Ekebafe et al., 2011 ), reduce soil water loss ( Al-Omran and Al-Harbi, 1997 ) and rapidly provide water for crops during periods of drought and water shortage ( Arbona et al., 2005 ). Therefore, the application of SAP is an important measure in agricultural water conservation ( Niu et al., 2007 ), and also a hot topic in the study of dry farming area ( Huang et al., 1999 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of long term application of super absorbent polymer on soil structure, soil enzyme activity, photosynthetic characteristics, water and nitrogen use of winter wheat

Yang

Zhang²,

Wu³

et al. 2022

Front. Plant Sci.

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IntroductionWater scarcity and seasonal drought are major constraints on agricultural development globally. Super absorbent polymer (SAP) is a good amendment that can improve soil structure, increase soil water retention, and promote crop growth even with less soil moisture. We hypothesize that long term application of SAP has a better effect on soil organic carbon, soil enzyme activity, photosynthetic characteristics, yield, and water and nitrogen use than short term application. MethodsA long term field experiment with different application rates (0 (CK), 15 (L), 30 (M), 45 (H) kg ha-1) of SAP was conducted at the Yuzhou water conservation agriculture base of the Henan Academy of Agricultural Sciences from 2011 to 2019.Results and DiscussionThe results indicate that applying SAP increases > 0.25 mm aggregates and decreased<0.25 mm aggregates in the soil after one year (2011) and 9 years (2019) of application. In addition, soil organic carbon, soil microbial biomass carbon, soil sucrase and cellulase activities, soil water consumption, water consumption, net photosynthetic rate (Pn), leaf water use efficiency (LWUE) of wheat and yield, all increased after SAP application. SAP also boosts water use efficiency and nitrogen use efficiency. Correlation analyses show that SAP promotes the growth of wheat, and improves the utilization rate of soil water and nutrients by improving the soil structure and increasing soil organic carbon and microbial enzyme activity.ConclusionBased on our research, SAP treatment at a dosage of 45 kg ha-1 is most effective and is thus recommended.

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Improvement of Sandy Soils with Soil Conditioners

Cited by 6 publications

References 1 publication

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

Impacts of Biochar on Hydro-Physical Properties of Sandy Soil under Different Irrigation Regimes for Enhanced Tomato Growth

Effect of long term application of super absorbent polymer on soil structure, soil enzyme activity, photosynthetic characteristics, water and nitrogen use of winter wheat

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