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Journal articles on the topic 'Acid sulfate soils'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Pupathy, UT, T. Sabrina, S. Paramananthan, and Rosazlin Abdullah. "Some important elements of soil-water relationship in managing oil palms planted on acid sulfate soils." International Journal of Hydrology 4, no. 6 (2020): 285–91. http://dx.doi.org/10.15406/ijh.2020.04.00256.

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Oil palms (Elaeis guineensis) are generally able to grow economically and feasibly on various soil types, mostly in tropical countries. However, oil palms planted on acid sulfate soils were producing lesser Fresh Fruit Bunches (FFB) as compared to those on non-acid sulfate soils. The poor performance of oil palms planted on acid sulfate was mainly attributed to the presence of excess sulfates, which limits the FFB yields and vegetative growth.1 Generally, acid sulfate soils have significant amounts of free and absorbed sulfate. Jarosite generally occurs as pale yellow mottles along old root ch

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2

Hoa, Nguyen My, Trinh Thi Thu Trang, and Tran Kim Tinh. "Net N mineralisation in acid sulfate soils amended with different sources of organic matter, lime, and urea." Soil Research 42, no. 6 (2004): 685. http://dx.doi.org/10.1071/sr03081.

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Acid sulfate soils in the Mekong Delta, Vietnam, are often high in organic matter content, but net N mineralisation is low. This may be due to low soil pH or low easily decomposable organic matter content. This study aimed at investigating net N mineralisation in acid sulfate rice soil (anaerobic incubation) and acid sulfate upland soil (aerobic incubation) amended with 1% biogas sludge, 1% straw, 1% starch, 2.5‰ CaCO3 (about 10 t CaCO3/ha for acid sulfate soils), and 0.22‰ urea. Non-acid alluvial soils were used for comparison. Results showed that addition of straw and starch to acid sulfate

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3

Kinsela, Andrew S., Jason K. Reynolds, and Mike D. Melville. "Agricultural acid sulfate soils: a potential source of volatile sulfur compounds?" Environmental Chemistry 4, no. 1 (2007): 18. http://dx.doi.org/10.1071/en06071.

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Environmental context. Acid sulfate soils are important contributors to global environmental problems. Agricultural acid sulfate soils have recently been shown to emit sulfur dioxide, an important gas in global issues of acid rain, cloud formation and climate change. This emission is surprising because these soils tend to be wet and the gas is extremely water-soluble. The potential origins of this gas are not yet understood within the context of acid sulfate soils. Our new study reports the measurement of two potential precursors of sulfur dioxide, dimethylsulfide and ethanethiol, from both a

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4

Mitrakova, N. V., E. A. Menshikova, E. A. Khayrulina, and N. V. Poroshina. "Diagnostics of Acid Sulfate Soils in a Coal Mining Area of the Taiga Zone." Uchenye Zapiski Kazanskogo Universiteta Seriya Estestvennye Nauki 166, no. 2 (2024): 324–41. http://dx.doi.org/10.26907/2542-064x.2024.2.324-341.

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Technogenic soils result from the oxidation and hydrolysis of minerals in rocks extracted from mining areas and brought to the surface. Diagnostics of such soils involve a set of detailed tests, which can be both time-consuming and costly. In this study, the pH of sulfate soils in the Kizel Coal Basin (Perm krai, Russia) was determined using hydrogen peroxide. Particularly, the soils affected by runoff from rock dumps, outflow, and mine water discharge were examined. The findings showed pH-H2O2 below 2.5 in certain horizons, indicating the presence of sulfides. Additionally, the soils exhibite

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5

Asare, Georgina. "CLIMATE CHANGE ADAPTATION AND MITIGATION: THE ROLE OF ACID SULFATE SOILS." Ecofeminism and Climate Change 5, no. 1 (2024): 28–36. https://doi.org/10.26480/efcc.01.2024.28.36.

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Climate change has emerged as a central concern with far-reaching consequences including a rise in global temperatures and sea levels which is attributed to an increase in greenhouse gas emissions. This phenomenon extends beyond environmental realms, impacting economies, human health, and social stability. Amidst this backdrop, acid sulfate soils present a unique challenge. These soils, found in waterlogged areas possess distinct characteristics due to sulfidic materials and extremely low pH values below 4. The objective of this study is to review in detail the role of acid sulfate soils in cl

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6

Wessel, Barret M., John M. Galbraith, Mark H. Stolt, Martin C. Rabenhorst, Delvin S. Fanning, and Maxine J. Levin. "Soil taxonomy proposals for acid sulfate soils and subaqueous soils raised by the 8th International Acid Sulfate Soils Conference." South African Journal of Plant and Soil 35, no. 4 (2017): 293–95. http://dx.doi.org/10.1080/02571862.2017.1387820.

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7

Rabenhorst, Martin C. "International Acid Sulfate Soils Conference recap." CSA News 61, no. 9 (2016): 24–27. http://dx.doi.org/10.2134/csa2016-61-9-8.

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8

KIMPE, C. R. DE, M. R. LAVERDIÈRE, and R. W. BARIL. "CLASSIFICATION OF CULTIVATED ESTUARINE ACID SULFATE SOILS IN QUEBEC." Canadian Journal of Soil Science 68, no. 4 (1988): 821–26. http://dx.doi.org/10.4141/cjss88-081.

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When drained and cultivated, acid sulfate soils developed on coastal marsh sediments lose some of their specific properties because large amounts of lime are applied before cultivation and sulfate ions are leached out of the profiles. However, these soils still contrast strongly with other Gleysolic soils and their special characteristics should be given more emphasis in the soil classification system, especially for the benefit of soil fertility specialists. Key words: de l'Anse soils, jarosite, Gleysolic soils, sulfur

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9

Yli-Halla, Markku. "Acid sulfate soils: A challenge for environmental sustainability." Annales Academiae Scientiarum Fennicae 1, no. 1 (2022): 124–41. http://dx.doi.org/10.57048/aasf.122859.

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Acid sulfate (AS) soils contain sulfidic compounds formed in anaerobic conditions. In aerobic conditions, they will oxidize to sulfuric acid, which commonly lowers the pH to 3 – 4. These soils cover approximately 10,000 km2 in Finland, mainly on the western coast, and over 170,000 km2 globally. Acidity and the metals dissolved from the soil matrix and leached out of the soil are serious threats to aquatic biota. Initially, AS soils were regarded as an exclusively agricultural problem, but since the 1970s nearly all studies of AS soils have been environmentally motivated. Awareness of these soi

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10

SEİTKALİ, Nurzikhan, Askhat NAUSHABAYEV, Shynar MAZKİRAT, and Tursunay VASSİLİNA. "Assessing the efficacy of ameliorants on saline-sodic soils: Laboratory insights for reclamation strategies." EURASIAN JOURNAL OF SOIL SCIENCE (EJSS) 12, no. 4 (2023): 328–34. http://dx.doi.org/10.18393/ejss.1331960.

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This study presents the combined findings of laboratory experiments conducted to assess the efficacy of various ameliorants on saline-sodic soils in the foothill plain of Ile Alatau in the Northern Tianshan region. The investigation focused on the influence of phosphogypsum, elemental sulfur, nano sulfur, and sulfuric acid on the ionic composition of the soil solution and their impact on the soil-absorbing complex. Different doses of these ameliorants were applied to saline-sodic soil samples, and their incubation period was observed. The analysis of the aqueous extract of the soil emphasized

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11

Simpson, Stuart L., Rob W. Fitzpatrick, Paul Shand, Brad M. Angel, David A. Spadaro, and Luke Mosley. "Climate-driven mobilisation of acid and metals from acid sulfate soils." Marine and Freshwater Research 61, no. 1 (2010): 129. http://dx.doi.org/10.1071/mf09066.

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The recent drought in south-eastern Australia has exposed to air, large areas of acid sulfate soils within the River Murray system. Oxidation of these soils has the potential to release acidity, nutrients and metals. The present study investigated the mobilisation of these substances following the rewetting of dried soils with River Murray water. Trace metal concentrations were at background levels in most soils. During 24-h mobilisation tests, the water pH was effectively buffered to the pH of the soil. The release of nutrients was low. Metal release was rapid and the dissolved concentrations

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12

Kim, Jae Hwan, So-Jeong Kim, and In-Hyun Nam. "Effect of Treating Acid Sulfate Soils with Phosphate Solubilizing Bacteria on Germination and Growth of Tomato (Lycopersicon esculentum L.)." International Journal of Environmental Research and Public Health 18, no. 17 (2021): 8919. http://dx.doi.org/10.3390/ijerph18178919.

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Acid sulfate soils contain sulfide minerals that have adverse environmental effects because they can lead to acidic drainage and prevent the establishment of vegetation. The current study examined the effect of a novel method for the restoration of these soils and the promotion of germination and plant growth. Thus, we isolated two strains of phosphate solubilizing bacteria, Methylobacterium sp. PS and Caballeronia sp. EK, characterized their properties, and examined their effects in promoting the growth of tomato plants (Lycopersicon esculentum L.) in acid sulfate soil. Compared with untreate

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13

Boman, Anton, Stefan Mattbäck, Marina Becher, et al. "Classification of acid sulfate soils and soil materials in Finland and Sweden: Re-introduction of para-acid sulfate soils." Bulletin of the Geological Society of Finland 95, no. 2 (2024): 161–86. http://dx.doi.org/10.17741/bgsf/95.2.004.

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Established international soil classification systems have not properly accommodated acid sulfate soils (ASS) and soil materials in Finland and Sweden because: (1) in these soils some diagnostic ASS properties are too deep to meet the depth requirements, and (2) there is a lack of defined diagnostic soil classification criteria for acidic and potentially acidic soil materials that do not completely fulfill the diagnostic pH-criterion of pH < 4.0. In this paper, two new ASS materials are introduced with the prefix “para” for parasulfuric material (oxidized material) and parahypersulfidic mat

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14

KIMPE, C. R. DE, M. R. LAVERDIERE, and R. W. BARIL. "CARACTÉRISTIQUES DES SOLS SULFATÉS ACIDES DE LA SÉRIE DE L'ANSE EN MILIEU ESTUARIEN (QUÉBEC)." Canadian Journal of Soil Science 68, no. 3 (1988): 577–92. http://dx.doi.org/10.4141/cjss88-056.

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Acid sulfate soils were sampled according to the transect method in four bays along the south shore of the St. Lawrence river to determine their properties in their area of distribution. In each bay, six profiles of cultivated soils were sampled along a transect perpendicular to the river. One non-cultivated profile was also sampled at l'Isle-Verte. The lower limit of the B horizons, between 79 and 89 cm, suggested a homogeneous development of these soils across the area. Most profiles contained jarosite in the lower Bg and, sometimes, in the C horizons; this mineral was absent in the upper pa

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15

Fanning, D. S., Cary Coppock, Z. W. Orndorff, W. L. Daniels, and M. C. Rabenhorst. "Upland active acid sulfate soils from construction of new Stafford County, Virginia, USA, Airport." Soil Research 42, no. 6 (2004): 527. http://dx.doi.org/10.1071/sr03085.

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This paper reports on a situation where severe active acid sulfate soils were brought into existence by the construction of a new (opened in 2002) airport in Stafford County, VA, approximately 60 km south-west of Washington, DC. About 290 ha of new land surface was brought into existence that consisted of both scalped land surfaces on steep slopes, and spoil (fill), some of which was graded to provide level land surfaces for paved runways. Over 150 ha of ultra acidic (pH <3.5 at soil surface) post-construction acid sulfate soils remained barren for over 2 years before the acid sulfate soil

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16

Breemen, N. van. "Effects of redox processes on soil acidity." Netherlands Journal of Agricultural Science 35, no. 3 (1987): 271–79. http://dx.doi.org/10.18174/njas.v35i3.16724.

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Redox processes due to alternating aerobic and anaerobic conditions may give rise to strongly acidic or alkaline soils and waters. First, oxidized chemical components tend to be more acidic or less alkaline than their reduced counterparts. Second, and more important, redox processes often lead to the simultaneous formation of acidic (or potentially acidic) and alkaline substances with different mobility (dissolved or gaseous versus adsorbed or solid), so that one of the two substances can be exported, leaving a more acidic or more alkaline residue. Examples of acidification or alkalinization p

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17

Priatmadi, Bambang Joko, and Abdul Haris. "Reaksi Pemasaman Senyawa Pirit pada Tanah Rawa Pasang Surut." JOURNAL OF TROPICAL SOILS 14, no. 1 (2009): 19. http://dx.doi.org/10.5400/jts.2009.v14i1.19-24.

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Most of swamp soils in tidal land are Acid Sulfate Soils. Acid sulfate soils are the common name given to soils containing iron sulfides (pyrite). The soils are characterized by very low pH and high amount of soluble S and Fe, resulted from oxidation of pyrite when soils are drained. This study was aimed to determine acidity pattern, iron and sulfate solubility as the impact of the length time of oxidized, the effect of inhibitors application to acidity rate of sulfidic materials and top soils. The materials are: (1) soils at pyritic layer (sulfidic materials) and (2) soils at 0 – 20 cm from s

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18

DHANYA, K. R., and R. GLADIS. "Acid sulfate soils – Its characteristics and nutrient dynamics." AN ASIAN JOURNAL OF SOIL SCIENCE 12, no. 1 (2017): 221–27. http://dx.doi.org/10.15740/has/ajss/12.1/221-227.

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19

Moore, P. A., T. Attanandana, and W. H. Patrick. "Factors Affecting Rice Growth on Acid Sulfate Soils." Soil Science Society of America Journal 54, no. 6 (1990): 1651–56. http://dx.doi.org/10.2136/sssaj1990.03615995005400060024x.

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20

Yli-Halla, M., M. Puustinen, and J. Koskiaho. "Area of cultivated acid sulfate soils in Finland." Soil Use and Management 15, no. 1 (2006): 62–67. http://dx.doi.org/10.1111/j.1475-2743.1999.tb00065.x.

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21

Vithana, Chamindra L., Leigh A. Sullivan, Richard T. Bush, and Edward D. Burton. "Acidity fractions in acid sulfate soils and sediments: contributions of schwertmannite and jarosite." Soil Research 51, no. 3 (2013): 203. http://dx.doi.org/10.1071/sr12291.

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In Australia, the assessment of acidity hazard in acid sulfate soils requires the estimation of operationally defined acidity fractions such as actual acidity, potential sulfidic acidity, and retained acidity. Acid–base accounting approaches in Australia use these acidity fractions to estimate the net acidity of acid sulfate soils materials. Retained acidity is the acidity stored in the secondary Fe/Al hydroxy sulfate minerals, such as jarosite, natrojarosite, schwertmannite, and basaluminite. Retained acidity is usually measured as either net acid-soluble sulfur (SNAS) or residual acid solubl

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22

Singh, B. K., P. S. Tan, L. V. Thanh, and N. V. Luat. "Phosphorus Application in Acid-Sulfate Soil." International Rice Research Newsletter 12, no. 3 (1987): 51–52. https://doi.org/10.5281/zenodo.7122919.

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This article 'Phosphorus Application in Acid-Sulfate Soil' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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23

Thandapani, Pupathy Uthrapathy, and Sundian Nadaraj. "Monitoring of pH level for maximizing oil palm ffb yields." IOP Conference Series: Earth and Environmental Science 1308, no. 1 (2024): 012037. http://dx.doi.org/10.1088/1755-1315/1308/1/012037.

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Abstract Depending on the location of estates and types of soils, monitoring of pH changes is an integral part of soil-water management for realizing sustainable Fresh Fruit Bunches (FFB) yields. In Sumber Tani Agung Resources Tbk, fluctuations in pH levels in field blocks as well as nearby drains were monitored since 2019. The usage of portable units of pH meters made it possible for planters to record and monitor the on-site changes in pH. Monitoring of pH was done on two types of soils namely peat (three estates in North Sumatra) and acid sulfate soils (two estates in South Sumatra). Piezom

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24

Rosmini, H. "Yield Performance of Some Rice Lines in Acid Sulfate Soils of Indonesia." International Rice Research Notes 18, no. 4 (1993): 22. https://doi.org/10.5281/zenodo.7000074.

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This article 'Yield Performance of Some Rice Lines in Acid Sulfate Soils of Indonesia' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems. The series is a mechanism to help scientists keep each other informed of current rice research findings. The concise scientific notes are meant to encourage rice scientists to communicate with one another to obtain details on the research reported.

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25

Rosmini, H., and M. Sarwani. "Response of Some Rice Cultivars to Lime Application on Acid Sulfate Soils." International Rice Research Newsletter 16, no. 6 (1991): 13. https://doi.org/10.5281/zenodo.7218519.

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This article 'Response of Some Rice Cultivars to Lime Application on Acid Sulfate Soils' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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26

McElnea, Angus E., Col R. Ahern, and Neal W. Menzies. "Improvements to peroxide oxidation methods for analysing sulfur in acid sulfate soils." Soil Research 40, no. 7 (2002): 1115. http://dx.doi.org/10.1071/sr01100.

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Improvements to peroxide oxidation methods for analysing acid sulfate soils (ASS) are introduced. The soil solution ratio has been increased to 1 : 40, titrations are performed in suspension, and the duration of the peroxide digest stage is substantially shortened. For 9 acid sulfate soils, the peroxide oxidisable sulfur value obtained using the improved method was compared with the reduced inorganic sulfur result obtained using the chromium reducible sulfur method. Their regression was highly significant, the slope of the regression line was not significantly different (P = 0.05) from unity,

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27

Sullivan, L. A., R. T. Bush, D. McConchie, G. Lancaster, P. G. Haskins, and M. W. Clark. "Comparison of peroxide-oxidisable sulfur and chromium- reducible sulfur methods for determination of reduced inorganic sulfur in soil." Soil Research 37, no. 2 (1999): 255. http://dx.doi.org/10.1071/s98074.

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The rational management of acid sulfate soils requires analytical methods that provide reliable and accurate data on the content of reduced inorganic sulfur; it is this fraction that produces acid during oxidation. This study compared the utility of the chromium-reducible sulfur method for determining the reduced inorganic sulfur content of soil materials with methods based on oxidation using hydrogen peroxide. The results presented here indicate that methods involving oxidation by hydrogen peroxide for the determination of reduced inorganic sulfur are subject to significant interference by ev

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28

Soleha, Noor, Bambang Joko Priatmadi, and Zuraida Titin Mariana. "Perubahan pH, Fe-larut, dan P-tersedia di Tanah Sulfat Masam Aktual (Sulfaquept) yang Diberi Pupuk Kandang Sapi dan Genangan Air." Acta Solum 1, no. 2 (2023): 53–60. http://dx.doi.org/10.20527/actasolum.v1i2.1838.

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Organic matter application and water management were frequently applied to prevent the oxidation of pyrite in acid sulfate soils. The purpose of this study was to determine the effect of cow manure application with varying height of inundation on soil pH, soluble-Fe, and available P of acid sulfate soils. This study employed factorial treatments and in a completely randomized design. The first factor was the dosage of cow manure: 0, 10, and 20 t ha-1, while the second factor was various water depths: 5, 10, and 15 cm. Results of study showed that the interaction of cow manure and water depth d

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29

Lyons, David J., Angus E. McElnea, Niki P. Finch, and Claire Tallis. "Ultra-fine grinding is not essential for acid sulfate soil tests." Soil Research 49, no. 5 (2011): 439. http://dx.doi.org/10.1071/sr10196.

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Australian Standard methods for acid sulfate soils (ASS) require the grinding of soil to <0.075 mm. A ring-mill or similar grinding apparatus is therefore needed. We investigated whether ring-mill grinding is required for accurate and reproducible test results and associated calculations (such as acid–base accounting), or if more conventional fine-grinding (i.e. <0.5 mm) is sufficient to obtain acceptable results. An initial experiment (unreplicated) was conducted on 52 soils comparing ring-mill and fine-grinding treatments, and this information was used to formulate final, more detailed

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30

Yau, C. C., V. N. L. Wong, and D. M. Kennedy. "Soil chemistry and acidification risk of acid sulfate soils on a temperate estuarine floodplain in southern Australia." Soil Research 54, no. 7 (2016): 787. http://dx.doi.org/10.1071/sr15174.

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The distribution and geochemical characterisation of coastal acid sulfate soils (CASS) in Victoria in southern Australia is relatively poorly understood. This study investigated and characterised CASS and sulfidic material at four sites (wetland (WE), swamp scrub (SS), woodland (WO) and coastal tussock saltmarsh (CTS)) on the estuarine floodplain of the Anglesea River in southern Australia. Shell material and seawater buffered acidity generated and provided acid-neutralising capacity (up to 10.65% CaCO3-equivalent) at the sites located on the lower estuarine floodplain (WO and CTS). The SS sit

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31

Islam, Shahidul, Asadul Haque, Siobhan A. Wilson, and Pathegama Gamage Ranjith. "Improvement of acid sulfate soils using lime-activated slag." Proceedings of the Institution of Civil Engineers - Ground Improvement 167, no. 4 (2014): 235–48. http://dx.doi.org/10.1680/grim.12.00033.

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32

Charoenchamratcheep, C., C. J. Smith, S. Satawathananont, and W. H. Patrick. "Reduction and Oxidation of Acid Sulfate Soils of Thailand." Soil Science Society of America Journal 51, no. 3 (1987): 630–34. http://dx.doi.org/10.2136/sssaj1987.03615995005100030014x.

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33

Rassam, Daud W., Freeman J. Cook, and Edward A. Gardner. "1. Field and Laboratory Studies of Acid Sulfate Soils." Journal of Irrigation and Drainage Engineering 128, no. 2 (2002): 100–106. http://dx.doi.org/10.1061/(asce)0733-9437(2002)128:2(100).

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34

Stroud, Jacqueline L., and Mike Manefield. "The microbiology of acid sulfate soils and sulfidic sediments." Microbiology Australia 35, no. 4 (2014): 195. http://dx.doi.org/10.1071/ma14063.

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35

Yvanes-Giuliani, Yliane A. M., D. Fink, J. Rose, T. David Waite, and Richard N. Collins. "Isotopically exchangeable Al in coastal lowland acid sulfate soils." Science of The Total Environment 542 (January 2016): 129–35. http://dx.doi.org/10.1016/j.scitotenv.2015.10.051.

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36

Fanning, Delvin S., Martin C. Rabenhorst, and Robert W. Fitzpatrick. "Historical developments in the understanding of acid sulfate soils." Geoderma 308 (December 2017): 191–206. http://dx.doi.org/10.1016/j.geoderma.2017.07.006.

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37

Orndorff, Zenah W., W. Lee Daniels, and Delvin S. Fanning. "Reclamation of Acid Sulfate Soils Using Lime-Stabilized Biosolids." Journal of Environmental Quality 37, no. 4 (2008): 1447–55. http://dx.doi.org/10.2134/jeq2007.0206.

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38

SALLAH, NICHOLAS, MASANORI NONAKA, and TAKAO KAMURA. "Consequences of Microbial Pyrite Oxidation in Acid Sulfate Soils." Bulletin of Japanese Society of Microbial Ecology 8, no. 1 (1993): 27–33. http://dx.doi.org/10.1264/microbes1986.8.27.

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39

Udatama, Adam Febrius, Bambang Joko Priatmadi, and Gusti Irya Ichriani. "Pengaruh Abu Terbang Batubara dan Tandan Kosong Kelapa Sawit terhadap pH, Eh serta Fe-Larut pada Lahan Sulfat Masam." Acta Solum 3, no. 1 (2024): 22–25. https://doi.org/10.20527/actasolum.v3i1.2853.

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The issue of acid sulfate soil in Indonesia, characterized by high acidity due to pyrite (FeS2) oxidation, produces sulfuric acid and iron oxide detrimental to agricultural productivity. The use of ameliorants such as coal fly ash (ATB) and empty oil palm bunches (TKKS) is expected to improve soil chemical conditions. The study aims to assess the impact of the ATB and TKKS combination on increasing pH, lowering Eh, and reducing soluble Fe concentration in acid sulfate soils, determining the most effective dose. The research method employs completely randomized design (CRD) with various doses o

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40

KUCHNICKI, T. C., and G. R. B. WEBSTER. "A COMPARISON OF HPLC ANALYSIS OF NITRATE IN SOILS WITH THE PHENOLDISULFONIC ACID AND HYDRAZINE SULFATE METHODS." Canadian Journal of Soil Science 66, no. 1 (1986): 151–57. http://dx.doi.org/10.4141/cjss86-015.

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Six Manitoba soils of varying physical and chemical compositions were used to determine the efficiency of nitrate analysis by high-performance liquid chromatography (HPLC). The nitrate was extracted with distilled water and the extract was analyzed with a reverse phase column using a mobile phase of 1:1 methanol-water, pH 3.0. In five soils, the HPLC method of nitrate analysis resulted in near 100% recovery of added nitrate. An average 90.2% recovery was obtained with the hydrazine sulfate method using sodium bicarbonate, pH 8.5, as the soil extractant. Variable recoveries were obtained with t

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41

Sulaeman, Yiyi, Eni Maftuáh, Muhammad Noor, et al. "Coastal Acid-Sulfate Soils of Kalimantan, Indonesia, for Food Security: Characteristics, Management, and Future Directions." Resources 13, no. 3 (2024): 36. http://dx.doi.org/10.3390/resources13030036.

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Coastal acid-sulfate soils are crucial for producing crops and thus, for food security. However, over time, these soil resources experience degradation, leading to higher agro-input, lower yields, and environmental hazards that finally threaten food security. The optimal use of this fragile resource is only attained by implementing vigorous integrated water–soil–crop management technologies amid the climate change impact. This study aimed to review the distribution, properties, use, and management of acid-sulfate soils in Kalimantan, Indonesia. Acid-sulfate soils cover about 3.5 Mha of the coa

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42

Rosmini, H. "Iron toxicity tolerance of rice cultivars in acid sulfate soils of Indonesia." International Rice Research Newsletter 15, no. 6 (1990): 10. https://doi.org/10.5281/zenodo.7214609.

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This article 'Iron toxicity tolerance of rice cultivars in acid sulfate soils of Indonesia' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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Dang, Duy Minh, Ben Macdonald, Sören Warneke, and Ian White. "Available carbon and nitrate increase greenhouse gas emissions from soils affected by salinity." Soil Research 55, no. 1 (2017): 47. http://dx.doi.org/10.1071/sr16010.

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Sea-level rise and saline water intrusion have caused a shortage of fresh water and affected agricultural areas globally. Besides inundation, the salinity could alter soil nitrogen and carbon cycling in coastal soils. To examine the effect of salinity, an incubation experiment was used to investigate soil nitrogen and carbon cycling from an acid sulfate soil and an alluvial soil with and without additional nitrogen and carbon sources. Four levels of saline solution of 0.03, 10, 16 and 21dSm–1 were used to submerge acid sulfate and alluvial soil samples in a 125-mL jar. The experimental jars we

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Li, J. P., D. R. Cui, and K. Z. Tan. "Field Screening of Rice Cultivars in Acid Sulfate Soils, South China." International Rice Research Newsletter 11, no. 4 (1986): 20–21. https://doi.org/10.5281/zenodo.7121937.

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This article 'Field Screening of Rice Cultivars in Acid Sulfate Soils, South China' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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Shi, Jiaqi, Tao Long, Liping Zheng, Shang Gao, and Lei Wang. "Neutralization of Industrial Alkali-Contaminated Soil by Different Agents: Effects and Environmental Impact." Sustainability 14, no. 10 (2022): 5850. http://dx.doi.org/10.3390/su14105850.

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Industrial soil is susceptible to acid or alkali pollution, but studies focused on the remediation of such soil are still limited. This manuscript investigated the neutralization effect of five agents (hydrochloric acid, citric acid, ferrous sulfate, calcium superphosphate and raw gypsum) to alkali polluted soil. The results showed that regarding the initial pH after the neutralizing agent addition, it was better to set it lower than the target, as the pH would rebound. None of the five agents caused an obvious increase in the heavy metal contents of the leachates, but they all caused an incre

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Bishop, Janice L., M. Darby Dyar, Melissa D. Lane, and Jillian F. Banfield. "Spectral identification of hydrated sulfates on Mars and comparison with acidic environments on Earth." International Journal of Astrobiology 3, no. 4 (2004): 275–85. http://dx.doi.org/10.1017/s1473550405002259.

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We interpret recent spectral data of Mars collected by the Mars Exploration Rovers to contain substantial evidence of sulfate minerals and aqueous processes. We present visible/near-infrared (VNIR), mid-IR and Mössbauer spectra of several iron sulfate minerals and two acid mine drainage (AMD) samples collected from the Iron Mountain site and compare these combined data with the recent spectra of Mars. We suggest that the sulfates on Mars are produced via aqueous oxidation of sulfides known to be present on Mars from Martian meteorites. The sulfate-rich rock outcrops observed in Meridiani Planu

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Pease, M. I., A. G. Nethery, and A. R. M. Young. "Acid sulfate soils and acid drainage, Lower Shoalhaven floodplain, New South Wales." Wetlands Australia 16, no. 2 (2010): 56. http://dx.doi.org/10.31646/wa.186.

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Brennan, R. F., and M. D. A. Bolland. "Zinc sulfate is more effective at producing wheat shoots than zinc oxide in an alkaline soil but both sources are equally effective in an acid soil." Australian Journal of Experimental Agriculture 46, no. 12 (2006): 1615. http://dx.doi.org/10.1071/ea05071.

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The effectiveness of zinc, as either zinc sulfate (ZnSO4.7H2O, 22.4% Zn) or zinc oxide (ZnO; 80% Zn) applied to an acid sand or an alkaline sandy clay, at producing wheat shoots was compared in a glasshouse experiment using yield of 50-day-old wheat (Triticum aestivum L.) plants. The fertilisers were applied as fine powders and mixed through the soil. Both fertilisers were equally effective in the acid soil, but the oxide was about half as effective as the sulfate in the alkaline soil; about twice the amount of zinc as the oxide was required to produce the same yield as zinc added as the sulfa

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Mustafa, Akhmad, Rachmansyah Rachmansyah, Dody Dharmawan Trijuno, and Ruslaini Ruslaini. "PEUBAH KUALITAS AIR YANG MEMPENGARUHI PERTUMBUHAN RUMPUT LAUT (Gracilaria verrucosa) DI TAMBAK TANAH SULFAT MASAM KECAMATAN ANGKONA KABUPATEN LUWU TIMUR PROVINSI SULAWESI SELATAN." Jurnal Riset Akuakultur 4, no. 1 (2009): 125. http://dx.doi.org/10.15578/jra.4.1.2009.125-138.

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Rumput laut (Gracilaria verrucosa) telah dibudidayakan di tambak tanah sulfat masam dengan kualitas dan kuantitas produksi yang relatif tinggi. Oleh karena itu, dilakukan penelitian yang bertujuan untuk mengetahui peubah kualitas air yang mempengaruhi laju pertumbuhan rumput laut di tambak tanah sulfat masam Kecamatan Angkona Kabupaten Luwu Timur Provinsi Sulawesi Selatan. Pemeliharaan rumput laut dilakukan di 30 petak tambak terpilih selama 6 minggu. Bibit rumput laut dengan bobot 100 g basah ditebar dalam hapa berukuran 1,0 m x 1,0 m x 1,2 m. Peubah tidak bebas yang diamati adalah laju pertu

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Vu, Van Long, and Van Dung Tran. "Isolation and evaluation of the ability to decompose sugarcane leaves of bacterial strains from acid sulfate soils in the Mekong River Delta." Ministry of Science and Technology, Vietnam 63, no. 3 (2021): 24–27. http://dx.doi.org/10.31276/vjst.63(3).24-27.

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The objectives of this study were to isolate and determine the ability of bacterial strains to decompose sugarcane leaves from acid sulfate soils in the Mekong River Delta (MRD). Soil samples were collected from three acid sulfate soils in Ben Luc district, Long An province, Phung Hiep district, Hau Giang province, and Hon Dat district, Kien Giang province where large sugarcane areas cultivated. Six soil samples were collected and coded: LA1, LA2, HG1, HG2, KG1, and KG2. The results of the study have isolated 18 strains of bacteria are capable of producing cellulase enzyme that breaks down cel

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