Applying Biochar and Mineral Amendments to Remediate the Chemical Properties of a Saline-Sodic Soil

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NOORI Z.; DELAVAR M.A.; SAFARI Y.

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Journal: Journal of Water and Soil Science Year:2021 | Volume:24 | Issue:4 Page(s): 21-36

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Information Journal Paper

Title

Applying Biochar and Mineral Amendments to Remediate the Chemical Properties of a Saline-Sodic Soil

Author(s)

NOORI Z. | DELAVAR M.A. | SAFARI Y. | Issue Writer Certificate

Keywords

Soil remediationQ2

Sugarcane bagasseQ2

Walnut shellQ1

BiocharQ1

PyrolysisQ1

Abstract

The present study was intended to improve the chemical properties of a saline-sodic soil using the individual application of alfalfa residue and two Biochars produced from Sugarcane bagasse and Walnut shell, at the weighting ratio of 5%; their concomitant application with gypsum, aluminum sulfate and the mixture of these two chemical amendments was considered. The experiment was conducted in three replications using the factorial experiment in a completely randomized design. After four months of incubation, the soil samples were measured for their main chemical properties. The results showed that alfalfa residues were the most effective treatment to reduce the soil pH; so the concomitant application of this organic amendment with gypsum lowered the soil pH from 9. 13 in the control (untreated soil) to 7. 24. It was also observed that the addition of gypsum and/or aluminum sulfate to the soil led to the increase of the soil electrolyte concentration and consequently, the increase of soil electrical conductivity to three times greater than control, through an increase of ions, like calcium and sulfate in the soil solution. Increasing the soluble sodium concentration by replacing exchangeable sodium by other similar ions showed that the studied treatments enhanced the sodium adsorption ratio (SAR), which could be regulated by washing. Concomitant application of the walnut-shell Biochar with gypsum had the most increasing effect on the soil SAR, enhancing it from 22. 6 in the control to 54. 3. Potassium was released from organic amendments, improving the soil general conditions; addition of chemical amendments elevated soil exchangeable potassium contents; however, the elevated soil available phosphorus contents were less influenced by chemical amendments application. As the conclusion, it seems that the positive impacts of the applied chemical and organic amendments would supplement each other; as a result, the concurrent use of both treatments not only improves the bad soil chemical properties, but also enhances the soil fertility...

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APA: Copy

NOORI, Z., DELAVAR, M.A., & SAFARI, Y.. (2021). Applying Biochar and Mineral Amendments to Remediate the Chemical Properties of a Saline-Sodic Soil. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 24(4 ), 21-36. SID. https://sid.ir/paper/386415/en

Vancouver: Copy

NOORI Z., DELAVAR M.A., SAFARI Y.. Applying Biochar and Mineral Amendments to Remediate the Chemical Properties of a Saline-Sodic Soil. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2021;24(4 ):21-36. Available from: https://sid.ir/paper/386415/en

IEEE: Copy

Z. NOORI, M.A. DELAVAR, and Y. SAFARI, “Applying Biochar and Mineral Amendments to Remediate the Chemical Properties of a Saline-Sodic Soil,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 24, no. 4 , pp. 21–36, 2021, [Online]. Available: https://sid.ir/paper/386415/en

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