EFFECT OF RICE HUSK ON ARSENIC ACCUMULATION IN

Overview

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Key numbers

The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:

• tuber flesh was observed in As1R1, As1R2, As1R3 (range 0.1258-0.1070 mg kg-1 FW)
• which also showed higher productivity (range 402.67 - 416.67 g plant-1), but the treatment
• combination of As1R1 may be suitable for safe potato cultivation in lower level As
• carbons were 5.8 and 0.44%, respectively. The experimental soil of basket was fertilized with a
• means value was separated by Least Significant Difference (LSD) at 5% level of probability (Gomez
• The Arsenic load in tuber flesh increased with increasing Arsenic level (Table 1). A higher
• in tuber flesh decreased with increasing the rate rice husk application (Table 2). The treatment
• flesh (Table 3). The least amount of Arsenic load in tuber flesh was observed in As1R3 (0.1070 mg kg-1
• the concentration of As decreased in tuber flesh (Table 3).
• Table 1. Effect of Arsenic levels on Arsenic accumulation (mg kg-1 FW) in different plant parts of
• significantly at 5% level of probability. As0: Control, As1: 20 mg As kg-1 soil, As2: 40 mg As kg-1 soil, As3: 60 mg As kg-
• the tuber peel gradually increased with increasing Arsenic levels (Table 1). The minimum Arsenic load
• Arsenic load in tuber peel gradually decreased with increasing rice husk levels (Table 2). The lowest
• Table 2. Effect of Rice husk levels on Arsenic accumulation (mg kg-1 FW) in different plant parts of
• significantly at 5% level of probability. NS= Non-significant, R0-= 0 g rice husk kg-1 soil, R1 =20 g rice husk kg-1 soil,
• potato peel (Table 3). The maximum Arsenic load in tuber peel was observed in As3R0 (3.8277 mg kg-1
• Table 3 also showed that only by increasing of rice husk level, the accumulation of Arsenic decreased
• levels. Table 1 showed that the Arsenic load in haulm progressively increased with increasing Arsenic
• varied significantly with different rice husk levels (Table 2). The result also demonstrated that Arsenic
• levels showed significant effect on Arsenic loading by haulm (Table 3). The maximum Arsenic load in
• soil (Table 1). The amount of Arsenic load in root progressively increased with increasing Arsenic
• levels (Table 2). The combined effect of Arsenic and rice husk was also significant on Arsenic loading
• by root. Table 9 showed that the maximum Arsenic load in root was detected in As3R0 (17.950 mg kg-1
• Table 3. Combined effect of Arsenic and rice husk on Arsenic accumulation (mg kg-1 FW) in different
• at 5% level of probability. NS= Non-significant, As0: Control, As1: 20 mg As kg-1 soil, As2: 40 mg As kg-1 soil, As3: 60
• The maximum accumulation of Arsenic was detected in the root (53.6%) as compared to those of other
• Haulm accumulated 43.6% Arsenic, whereas, tuber only 3.8%. Finally, tuber flesh (1.5%) accumulated
• 60 g Rice husk kg-1 soil, decreased 67.51 and 66.73% arsenic accumulation through tuber flesh and
• As1R2 and As1R3 were found suitable but As1R1 was the appropriate because, in this combination,
• done to find out another bio-adsorbents to minimize more than 80% of Arsenic load from Potato

Methods (brief)

• Rice husk was collected from a rice mill. The collected soil was sandy loam. Soil pH and organic
• Courage were used as planting material. Collected seed potato tubers were kept at room temperature to
• ground portion), roots and tuber were collected as per treatment. After peeling the tuber, both peel and
• flesh samples were separated into different labeled packets. The labeled packets were immediately sent
• Dhaka, where Arsenic was determined with an Atomic Absorption Spectrophotometer (HG-AAS)
• Abedin, M.J., J. Feldmann and A.A. Meharg. 2002. Uptake Kinetics of Arsenic Species in Rice Plants. Plant
• Norton, G., C. Deacon, A. Mestrot, J. Feldmann, P. Jenkins, C. Baskaran and A.A. Meharg. 2013. Arsenic

Implications

This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.

Wiki pages this source may touch

• Root-Vegetable Purees
• Cadmium
• Arsenic

Verification notes

• Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing wiki/sources/ pages before creation.
• Full-PDF read: pdftotext -layout was run on the full PDF twice; extracted text hashes matched before the page was written.
• Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
• Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
• HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.

Update history

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