An improved turbidimetric procedure for the determination of sulphate in plants and soils

Verma, Balbir Chand; Swaminathan, K.; Sud, K. C.

doi:10.1016/0039-9140(77)80185-9

Cited by 63 publications

(26 citation statements)

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“…Soil total S was digested by magnesium nitrate [Mg(NO 3 ) 2 ] (Butters and Chenery 1959) and determined by ICP-OES. Available S was extracted by 0.01 M monocalcium phosphate [Ca(H 2 PO 4 ) 2 ] (Warman and Sampson 1992) and determined by the turbidimetric method (Lu 1999;Verma, Swaminathan, and Sud 1977). A reagent blank and a standard reference material (Shrub, GBW 07602, National Certified Reference Materials) were included to verify the accuracy and precision of the digestion procedure and the subsequent analysis.…”

Section: Discussionmentioning

confidence: 99%

Influence of Sulfur Supply on the Iron Accumulation in Rice Plants

Jia

2014

Communications in Soil Science and Plant Analysis

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The influence of sulfur (S) (0, 30, 60, and 120 mg S kg −1 soil) supply on iron (Fe) accumulation in rice was investigated in a soil (soil/sand = 4:1) culture experiment. Results showed that Fe concentration in brown rice stem/leaf increased initially and then decreased with the increase in S concentration from 30 to 120 mg kg −1 . The greatest Fe concentration was achieved at 60 mg S kg −1 , whereas Fe concentration in the roots decreased with the increase in S concentration. Possible mechanisms of S supply on Fe accumulation in rice were proposed. These results suggest that S fertilization is important in developing approaches to increase Fe accumulation in brown rice when cultivated in low-S soils. However, the S input in farmland, such as S-containing fertilizers (e.g., calcium superphosphate) and atmospheric S deposition may decrease Fe accumulation in brown rice when cultivated in high-S soils.

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Section: Discussionmentioning

confidence: 99%

Influence of Sulfur Supply on the Iron Accumulation in Rice Plants

Jia

2014

Communications in Soil Science and Plant Analysis

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“…The different soil parameters tested as well as methods adopted to analyze is shown on the Table 1. (Verma, 1977) …”

Section: Laboratory Analysismentioning

confidence: 99%

Evaluation of soil fertility status of Regional Agricultural Research Station, Tarahara, Sunsari, Nepal

Khadka¹,

Lamichhane²,

Shrestha³

et al. 2017

Eurasian Journal of Soil Science (Ejss)

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“…The sulfur concentrations in the HCl extracts were identified by turbidimetric spectroscopy (Verma et al, 1977). Available Pb, Fe, and Mn in soils were extracted by diethylenetriamine pentaacetic acid (DTPA: 0.005 M DTPA, 0.1 M triethanolamine and 0.01 M CaCl 2 at pH 7.3) in a soil:solution ration of 1:2 (v/v) (Lindsay and Norvell, 1978) and determined by ICP-MS. To determine the total Pb contents, the soil samples were digested in 4 mL of "aqua-regia" (HNO 3 /HCl¼1/3, V/V) (Allen, 1989) and determined by ICP-MS.…”

Section: Chemical Analysismentioning

confidence: 99%

Interaction between sulfur and lead in toxicity, iron plaque formation and lead accumulation in rice plant

Yang

Liu

Wan

et al. 2016

Ecotoxicology and Environmental Safety

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a b s t r a c tHuman activities have resulted in lead and sulfur accumulation in paddy soils in parts of southern China. A combined soil-sand pot experiment was conducted to investigate the influence of S supply on iron plaque formation and Pb accumulation in rice (Oryza sativa L.) under two Pb levels (0 and 600 mg kg ) significantly decreased the amounts of iron plaque on the root surface. Sulfur supply significantly enhanced the GSH contents in leaves of rice plants under Pb treatment. With excessive S application, the rice root acted as a more effective barrier to Pb accumulation compared with iron plaque. Excessive S supply may result in a higher monosulfide toxicity and decreased iron plaque formation on the root surface during flooded conditions. However, excessive S supply could effectively decrease Pb availability in soils and reduce Pb accumulation in rice plants.

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An improved turbidimetric procedure for the determination of sulphate in plants and soils

Cited by 63 publications

References 1 publication

Influence of Sulfur Supply on the Iron Accumulation in Rice Plants

Influence of Sulfur Supply on the Iron Accumulation in Rice Plants

Evaluation of soil fertility status of Regional Agricultural Research Station, Tarahara, Sunsari, Nepal

Interaction between sulfur and lead in toxicity, iron plaque formation and lead accumulation in rice plant

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