Utilization of Na-bentonite to Improve pH-buffering Capacity of Acid Sulfate Soils in Natural Gas Transmission Pipeline Rights-of-Way, Thailand

Chittamart, Natthapol; Tawornpruek, Saowanuch; Ketrot, Daojarus; Aramrak, Surachet; Chittanukul, Kittipon; Sattapun, Rachit

doi:10.1088/1755-1315/151/1/012023

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…On the other hand, it is also possible that high-valence cations such as Fe 3+ or Al 3+ are hydrolyzed. Similar results are found in the report of Chittamart et al (2018), who found that bentonite can only raise the pH up to 6.0. This pH value is recommended to limit the dissolution of Al, which can be toxic to plant roots.…”

Section: Effect Of Bentonite Addition On Soil Ph and Phbcsupporting

confidence: 91%

“…A similar explanation was also found in the study of Shi et al (2017)., who suggested that pHBC changes depend on many factors, such as CEC and the protonation/deprotonation reactions on variable chargecontaining minerals. The Al content on the bentonite surface is directly related to CEC and has a great influence on pHBC (Chittamart et al, 2018).…”

Section: Effect Of Bentonite Addition On Soil Ph and Phbcmentioning

confidence: 99%

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Potential solution in sustainable agriculture: improving the pH and pH buffering capacity of gray soil Acrisol from Cu Chi, Ho Chi Minh City, Vietnam using biochar combined with bentonite

Hoang

Phương

2023

Sains Tanah J. Soil Sci. Agroclimatology

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The acidification of agricultural soils should be avoided, and low pH soils should be corrected for better productivity. Soil improvement by applying biochar from agricultural byproducts combined with bentonite, a rich source in Vietnam, is a trend in green agriculture in the country. The current study is important in assessing the potential influences of biochar and bentonite on the pH and pH buffering capacity (pHBC) of low pH soil collected in Cu Chi, Ho Chi Minh City, Vietnam. Experimental methods, including biochar preparation (pyrolysis at 300°C, retention time: 2 h), soil incubation (time: 30 days, temperature: 27°C), and pH and pHBC determination, were performed. Research results have shown that biochar and bentonite have contributed to improving the pH and pHBC of gray soil samples. Using 1% bentonite and 1% biochar raised the pH to 6.21 and improved the pHBC of Cu Chi gray soil to 24.1 mmolH+/OH- kg-1. This dose is currently suitable for agricultural production in Vietnam. The study confirmed the applicability of biochar derived from cow manure prepared at a low pyrolysis temperature in combination with bentonite to improve soil parameters such as pH and pHBC in Cu Chi gray soil.

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Section: Effect Of Bentonite Addition On Soil Ph and Phbcsupporting

confidence: 91%

Section: Effect Of Bentonite Addition On Soil Ph and Phbcmentioning

confidence: 99%

Potential solution in sustainable agriculture: improving the pH and pH buffering capacity of gray soil Acrisol from Cu Chi, Ho Chi Minh City, Vietnam using biochar combined with bentonite

Hoang

Phương

2023

Sains Tanah J. Soil Sci. Agroclimatology

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“…For field applications, the ratio of T2 corresponded to the rate of NaB at 585 T ha -1 and the ratio of T4 matched with the rate of DL at 12.35 T ha -1 , calculated from 10 cm depth and 1.3 g cm -3 bulk density of the studied soil. The applied NaB and DL rates were expected to raise soil pH to 6.0 based on the previous study [2]. The full details of chemical properties for these materials are given in Table 1.…”

Section: Field Experimentsmentioning

confidence: 99%

“…Several measures have been adopted to alleviate soil acidity and metal toxicity in the soils, for example, neutralizing soil pH with liming materials such as limestone and dolomites (DL). In addition, sodiumbentonite (NaB), an alkaline muddy material used in the Horizontal Directional Drilling (HDD) technique for 5TP project construction, has been recently documented to increase pH of acid sulfate soils at laboratory scale [2]. Nonetheless, the incubation experiment in oxic conditions is different from paddy rice fields, which are frequently subjected to flooded and non-flooded cycles during rice growth and harvest stages.…”

Section: Introductionmentioning

confidence: 99%

Elemental dynamics in porewater of an acid sulfate paddy soil as affected by sodium bentonite and dolomite amendments: insights from field study

et al. 2020

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Rice productivity in acid sulfate soils are frequently limited due primarily to strong acidity, low phosphorus (P) availability and metal toxicity. A recent study has documented that the use of sodium bentonite (NaB), non-hazardous material uses in natural gas pipeline construction, could be a promising soil amendment for mitigating major concerns experiencing in acid sulfate soils. Here we examined the effects of NaB and dolomite (DL) on dynamics in dissolved contents of both nutrient and associated elements in an acid sulfate soil and rice yield from paddy field in natural gas pipeline Rights-of-Way. The results demonstrated that the NaB and DL utilization significantly alleviated soil acidity and metal (Al, Fe, and Mn) toxicity (α = 0.05). Both soil amendments also significantly improved readily available P. Nonetheless, the soil NaB incorporation did elevate soluble sodium and did plummet soluble K, Ca, and Mg. Therefore, appropriate ratios and amounts of the K, Ca, and Mg along with N fertilizers are indisputable needed to maintain the nutrient balance when applying NaB as a soil amendment. Our finding implies that combined use of NaB and DL are suggested to soil amendment and could alleviate nutrient imbalance as compared to the sole NaB utilization.

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Feasibility assessment of bentonite drilling mud to improve the physical quality of loamy sand soil and water deficit of forest plant seedlings

Tawornpruek

Aramrak

Ketrot

et al. 2021

Journal of the Air & Waste Management Association

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Utilization of Na-bentonite to Improve pH-buffering Capacity of Acid Sulfate Soils in Natural Gas Transmission Pipeline Rights-of-Way, Thailand

Cited by 3 publications

References 8 publications

Potential solution in sustainable agriculture: improving the pH and pH buffering capacity of gray soil Acrisol from Cu Chi, Ho Chi Minh City, Vietnam using biochar combined with bentonite

Potential solution in sustainable agriculture: improving the pH and pH buffering capacity of gray soil Acrisol from Cu Chi, Ho Chi Minh City, Vietnam using biochar combined with bentonite

Elemental dynamics in porewater of an acid sulfate paddy soil as affected by sodium bentonite and dolomite amendments: insights from field study

Feasibility assessment of bentonite drilling mud to improve the physical quality of loamy sand soil and water deficit of forest plant seedlings

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