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Journal articles on the topic 'Gypsum soil'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Anikwe., M. A. N., Nnamnani D.E., Ikengannyia E.E., J. C. Eze., and Obidike-Ugwu, E. O. "SOIL TILLAGE VARIANTS AND SULPHUR FERTILIZATION AFFECT NODULATION, N2 FIXATION AND YIELD OF BAMBARA GROUNDNUT (Vigna subterreana) IN SOUTHEAST NIGERIA." Journal CleanWAS 7, no. 2 (2023): 76–82. http://dx.doi.org/10.26480/jcleanwas.02.2023.76.82.

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Management efficiency can increase crop productivity through enhanced N2 fixation in the plant-soil system. This study examined soil tillage variants and sulphur fertilization effects on nodulation, N2 fixation effectiveness and yield of Bambara groundnut [Vigna subterranea] in a degraded Ultisol in Agbani Enugu, Southeast Nigeria. Twenty-four experimental units were laid out in a Randomized Complete Block Design (RCBD). The six treatments comprised No-Till+No Gypsum (NTGo), No-Till+Gypsum1 (NTG1), No-Till+Gypsum2 (NTG2), Till+No Gypsum (TGo), Till+Gypsum1 (TG1), and Till+Gypsum2 (TG2). No-til

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2

Hamad, Asal Mahmud, and Mahmood Gazey Jassam. "A Comparative Study for the Effect of Some Petroleum Products on the Engineering Properties of Gypseous Soils." Tikrit Journal of Engineering Sciences 29, no. 3 (2022): 69. http://dx.doi.org/10.25130/tjes.29.3.7.

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Gypseous soils are considered problematic soils because the soil cavities happen during receiving the water or this type of soil and solving gypsum materials and contract in a soil volume. In this study, three types of gypseous soils are used; soil1, soil2, and soil3 with gypsum content (28.71%, 43.6%, and 54.88%) respectively, petroleum products (engine oil, fuel oil, and kerosene) are added to the soils with percentages (3%, 6%, 9%, and 12%) for each product. The result showed that specific gravity, liquid limit, optimum moisture content (O.M.C), and maximum dry density decreased with an inc

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3

Ismaeal, Ammar S. "Diagnostics and Characterization of Micro morphological Features of some Soil Series in Baiji City, Central Iraq." Tikrit journal for agricultural sciences 22, no. 2 (2022): 132–47. http://dx.doi.org/10.25130/tjas.22.2.15.

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Three pedons were selected representing the soil series of the study area in Baiji city, which are Khadraniya, Al-Sharqat, and Manjour soils series, representing calcareous and gypsiferous soils, to diagnose some of micro-morphological Features in soil series horizons. Pedons were morphologically described, and disturbed and undisturbed soil samples were collected from each horizon. The presence of (calcic) and (gypsic) horizons has been diagnostic by morphological field results, ccumulation of lime and gypsum in soil matrix as vertical gypsic threads and beards and aggregates under gravel and

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4

Ciarkowska, Krystyna, and Anna Miechówka. "Gypsic rendzinas of Nida Basin (southern Poland): a review." Soil Science Annual 69, no. 2 (2018): 101–8. http://dx.doi.org/10.2478/ssa-2018-0010.

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Abstract The article presents the overview of the gypsic rendzinas that occur in the Nida Basin (Niecka Nidziańska) as based on authors’ results and observations and also literature data. The influence of gypsum forms (selenite, shale and compact gypsum) and allogenic admixtures on the properties of rendzinas was described. Furthermore, attention was paid to the specific climate conditions of the Nida Basin reflected in the native vegetation cover on the gypsum-derived soils. Finally, there is a proposal for classification of this area’s gypsic rendzinas and the soil properties were described

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5

Afsharian, Aliabbas, Nader Abbasi, Amir Khoserowjerdi, and Hossein Sedghi. "Analytical and Laboratory Evaluation of the Solubility of Gypsiferous Soils." Civil Engineering Journal 2, no. 11 (2016): 590–99. http://dx.doi.org/10.28991/cej-2016-00000061.

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Gypsum soil is one of the problematic soils because of considerable solubility for Gypsum particles in contact with water. In this research the effects of three factors including; gypsum percent, hydraulic gradient and soil texture were studied on solubility of gypsum soils. To do this, samples of gypsum soils were provided artificially by adding various rates of natural gypsum rock including 0, 5, 10, 20 and 30 percent weight of 3 kinds of soil textures including clay, silty clay and sand. Totally, 15 types of gypsum soils were prepared. Then each of gypsum soils were leached under five hydra

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6

Algnaby, Yasir Hamod, and Hawazin Dyaa Aldawri. "Effect of Levels of Organic Matter on Adsorption and Liberation of Gypsum Soil." IOP Conference Series: Earth and Environmental Science 1213, no. 1 (2023): 012101. http://dx.doi.org/10.1088/1755-1315/1213/1/012101.

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Abstract In an experiment for iron adsorption for nine levels of iron (0,1,2,5,10,25,50,100,200)mg/L. This experiment was carried out to find the behaviour of iron in soils of varying gypsum and organic content to know the conditions for adsorption and liberation of iron in them, using three gypsums (10,20,30)% with percentages of organic matter from sheep feces (0,1,2)%. The Langmeyer equation, the Feinrendlach equation, and the Timken equation were used, through which the most excellent adsorption and binding energy were calculated. The most outstanding adsorption values were In medium gypsu

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Herrero, J., O. Artieda, and D. C. Weindorf. "Soil Gypsum Determination." Methods of Soil Analysis 1, no. 1 (2016): 0. http://dx.doi.org/10.2136/methods-soil.2016.0037.

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8

Agha, Mooatasim Daood S., and Faris A. Al –Wazzan. "Evaluating the Impact of Gypsum Content on the Physical and Hydraulic Properties of Soils in Arid Regions: A Review." Asian Journal of Soil Science and Plant Nutrition 11, no. 1 (2025): 217–25. https://doi.org/10.9734/ajsspn/2025/v11i1475.

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Gypsum soils constitute approximately 100 million hectares of the world’s area, and approximately 28% of the Iraq s, area. Low gypsum content (about 14%) have a positive effect on improving soil properties, if the soil has a high gypsum content it will lead to a deterioration in the physical, chemical and fertility properties. Gypsum affects physical soil properties, water movement and water functions because it is semi-soluble and thus affects plant growth and productivity. Gypsum soils are generally of a fine texture, and the texture of the surface layer is often loam, while the subsurface

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9

Al-Yasir, Abdullah Talib, and Abbas Jawad Al-Taie. "Geotechnical Review for Gypseous Soils: Properties and Stabilization." Jurnal Kejuruteraan 34, no. 5 (2022): 785–99. http://dx.doi.org/10.17576/jkukm-2022-34(5)-04.

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In many arid and semi-arid regions, collapsible soils are well-known to be problematic in nature and negatively affect the performance of engineering structures. Gypseous soil considers one of the well-known types of collapsible soil. It represents a real challenge to engineers due to different problems encountered by engineering projects implemented in this soil. The mineralogy, composition, and fabric of gypseous soil affect its ability to deform when subjected to wetting (due to changing the whole structure soil particles). Numerous studies considered the problems of gypseous soils and thei

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Messenger, B. J., J. A. Menge, and E. Pond. "Effects of Gypsum Soil Amendments on Avocado Growth, Soil Drainage, and Resistance to Phytophthora cinnamomi." Plant Disease 84, no. 6 (2000): 612–16. http://dx.doi.org/10.1094/pdis.2000.84.6.612.

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Infection of avocado seedlings by Phytophthora cinnamomi in infested soil was decreased by 71% by the addition of gypsum soil amendments in replicated greenhouse experiments. Root weights and total seedling weights were not significantly increased by gypsum amendments compared with unamended soil; however, the significant reduction in total seedling weight and root weight caused by P. cinnamomi was largely eliminated by the addition of gypsum. Fresh organic matter amendments alone did not significantly affect the total fresh weight or root weight of avocado seedlings. Root fresh weight was dec

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11

Sanderson, K. R., J. B. Sanderson, and J. A. Ivany. "Supplemental soil sulphur increases cabbage yield." Canadian Journal of Plant Science 76, no. 4 (1996): 857–59. http://dx.doi.org/10.4141/cjps96-145.

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Marketable yield of cabbage (Brossica oleracea L. var. capitata) was significantly increased from 11 to 14% by a soil application of sulphur-containing materials, potassium sulphate and gypsum, on sandy loam to loamy sand soils in Prince Edward Island. Calcite had no effect on yield. Gypsum resulted in the highest yield on five sites. Potassium sulphate and gypsum increased leaf S concentration 0.70 and 1.45% respectively. Gypsum decreased while calcite increased soil pH. Key words: Cabbage, calcite, calcium, gypsum, potassium sulphate, sulphur

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N J Alzaidy, Mohammed. "Effect of gypsum content on unsaturated engineering properties of clayey soil." International Journal of Engineering & Technology 9, no. 1 (2020): 84. http://dx.doi.org/10.14419/ijet.v9i1.30139.

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Many of gypsum soils have existed in arid and semi-arid lands. It is considered one of the most problematic soils because of its complicated and unpredicted behavior when exposure to moisture. Extensive researches have been conducted in Iraq to observe the behavior of such soil and to suggest safety restrictions for the collapse and set practical precautions for the structures. This study investigated the effect of gypsum content on some unsaturated engineering properties of a clayey soil. Three different proportions of gypsum (0%, 5% and 20% by weight of the parent soil) were added and tested

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13

Gaines, T. P., M. B. Parker, and M. E. Walke. "Runner and Virginia Type Peanut Response to Gypsum in Relation to Soil Calcium Level1." Peanut Science 16, no. 2 (1989): 116–18. http://dx.doi.org/10.3146/i0095-3679-16-2-14.

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Abstract Research reports relating peanut (Arachis hypogaea L.) response to gypsum at varying soil Ca levels are limited for the runner types and non-existent for the Virginia type NC-7. Twenty-nine gypsum experiments were conducted from 1982 to 1987 with Florunner on six soils. Seven gypsum experiments were conducted on four soils with Virginia types, six with NC-7 and one with Early Bunch. Pod yields of Florunner peanuts were increased by gypsum in 4 of 10 experiments with Mehlich-1 soil Ca ranging from 221 to 538 kg/ha and in all 7 Virginia type peanut experiments with soil Ca ranging from

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14

Al Wattar, Zainulabdeen Hussein, and Abdulaziz A. Al-Kifae. "Optimizing Different Gypseous Soil Characteristics Incorporating Clayey Soil." Al-Nahrain Journal for Engineering Sciences 28, no. 2 (2025): 281–87. https://doi.org/10.29194/njes.28020281.

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Gypsum soil is classified as problematic because it contains gypsum, a soluble substance in the presence of water. Therefore, it is recommended that it be improved before construction. This research examines the effect of clayey soils on enhancing the properties of gypseous soils. Two soil samples, designated as Soil 1 (with a gypsum concentration of 35.4%) and Soil 2 (with a gypsum content of 12.3%), were obtained from Al Najaf City, Iraq, and subjected to laboratory testing. The study investigates the use of cost-effective, locally available clayey soil to improve the engineering characteris

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15

Suriadi, A., R. S. Murray, C. D. Grant, and P. N. Nelson. "Structural stability of sodic soils in sugarcane production as influenced by gypsum and molasses." Australian Journal of Experimental Agriculture 42, no. 3 (2002): 315. http://dx.doi.org/10.1071/ea00113.

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The aim of this work was to determine whether molasses, a by-product of sugar manufacture, alone or combined with gypsum, could improve the structural stability of sodic soils used for sugarcane production. A Burdekin sandy clay loam with an exchangeable sodium percentage (ESP) of 7.9, and a Proserpine loamy sand with an ESP of 18.8 were incubated with molasses (0 and 10 t/ha) and gypsum (0 and 10 t/ha) for 12 weeks, during which time they were leached 5 times with water (0.5 pore volumes each time). In the Burdekin soil, molasses and gypsum, either alone or combined, decreased spontaneous cla

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16

Mahmoud, Hussein Imad, and Ammar S. Ismaeal. "Pedogenic and Spatial Distribution of Gypsum Content in Soil Series units in Al-Dur District in Salah Al-Din Governorate." IOP Conference Series: Earth and Environmental Science 1371, no. 8 (2024): 082051. http://dx.doi.org/10.1088/1755-1315/1371/8/082051.

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Abstract In order to diagnose the extent of development of some gypsum soils and their suitability for agricultural production, prepare maps of the spatial distribution of gypsum, and thus prepare a digital spatial database that fulfills the requirements for successful management of agricultural lands, five gypsum chain units were selected in the city of Al-Dur in Salah al-Din Governorate, and 5 soil beds were dug and models were taken from each horizon representative of the soil. Then, 41 surface samples were taken, representing all the series of the region, in order to prepare a map of the s

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Al-Juboori, Jasim Mohammed Yaseen, Awss Mamdouh Khairo, and Wael F. A. AlShamary. "The Thermal Conductivity and Matric Potential (Moisture Tension) Relationships for Soils of Different Gypsum Content." IOP Conference Series: Earth and Environmental Science 1158, no. 2 (2023): 022007. http://dx.doi.org/10.1088/1755-1315/1158/2/022007.

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Abstract The soil samples have been taken from a soil profile at the Research Station of College of Agriculture in the University of Tikrit at a longitude of 430 38- 23= in the east and at a latitude of 340 48- 40= in the north. The samples were taken from the surface horizon with a gypsum content of 62 g.kg-1 (G1) and also from the subsurface horizon of 443g.kg-1 (G7) gypsum content. Different gypsum content samples were prepared as G2, G3, G4, G5, and G6 that have Gypsum contents of 106, 153, 202, 245, and 337 g.kg-1 respectively. These samples were prepared by mixing the surface soil sample

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Al-khafaji, Sarah Ahmed, and Ahmed Al-Janabi Al-Janabi. "Strengthening Gypsum Soils: The Role of Lime and CaCO3 Nanoparticles in Enhancing Suction and Compressive Strength." Salud, Ciencia y Tecnología - Serie de Conferencias 4 (February 24, 2025): 1513. https://doi.org/10.56294/sctconf20251513.

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This study examines the characteristics and stabilization of two types of gypsum soils, known for their high gypsum content, which affects their physical and chemical properties. Gypsum soils pose challenges in construction due to their solubility in water, leading to instability. The research focuses on the interaction of moisture content, gypsum concentration, and soil structure under different climatic conditions.The study evaluates the relationship between soil total suction, measured by the filter paper approach, and unconfined compressive strength in both natural and processed gypsum soi

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Liu, Hailong, Jiuye Zhao, Yu Wang, Nangai Yi, and Chunyi Cui. "Strength Performance and Microstructure of Calcium Sulfoaluminate Cement-Stabilized Soft Soil." Sustainability 13, no. 4 (2021): 2295. http://dx.doi.org/10.3390/su13042295.

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Calcium sulfoaluminate cement (CSA) was used to stabilize a type of marine soft soil in Dalian China. Unconfined compressive strength (UCS) of CSA-stabilized soil was tested and compared to ordinary Portland cement (OPC); meanwhile the influence of amounts of gypsum in CSA and cement contents in stabilized soils on the strength of stabilized soils were investigated. X-ray diffraction (XRD) tests were employed to detect generated hydration products, and scanning electron microscopy (SEM) was conducted to analyze microstructures of CSA-stabilized soils. The results showed that UCS of CSA-stabili

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Mahdy, Basil Obayd. "COMPARSION OF SEVERAL METHODS FOR DETERMINATION OF GYPSUM CONTENT IN SOILS." Journal of Engineering 10, no. 3 (2024): 373–89. http://dx.doi.org/10.31026/j.eng.2004.03.07.

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Due to the solubility of gypsum, gypseous soils are known to be very problematic for civil enlineers. Tr.r assign the volume of the problem and the manner of dealing with it, it is essential to estirnate the arnount of'gypsum in the soil as acourate as possible .The aim of this study is to highlight the methodologies available in the literature that a reusetl to detect the presence of gypsum in soil and to determine its content . The study involves a comparison arnong four of the most popular methods used to determine the soil gypsum . The lbur rnethods rvere used to recover tire soil gypsum i

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Th. Al-Hadidi, Maysam, and Atheer G. Ibrahim. "Improvement of Gypsum Soil by Using Polyurethane to Reduce Erosion and Solubility of Irrigation Canals." International Journal of Engineering & Technology 7, no. 4.20 (2018): 372. http://dx.doi.org/10.14419/ijet.v7i4.20.26137.

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The reducing of erosion and the solubility of irrigation canals soils which constructed on gypsum soil is important in civil and water resources engineering. The main problem of gypsum soils is the presence of gypsum which represents one of most complex engineering problems, especially when accompanied by the moving of water which represent dynamic load along the canal. There are several solutions to this problem, in this research “Poly urethane” is used to give the gypsum soil sufficient hardness to reduce the solubility and erosion, after compacting the soil in the canal, percentages of Poly

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Yasir, Hmood Ijresh AL Janabi. "The Effect of biochar on the copper regulatory capacity in some Salah El-Din soils." International Journal of Life Science and Agriculture Research 04, no. 05 (2025): 332–42. https://doi.org/10.5281/zenodo.15479969.

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Capacity and intensity curves were applied to study the condition of copper element in three soils with different gypsum content (hydrated calcium sulfate) symbolized by (G1) gypsum percentage 10%, (G2) gypsum percentage 20%, and (G3) gypsum percentage 35%. Three types of biochar prepared from plant residues were added to them: rice plant residue biochar (R), wheat plant residue charcoal (W), and corn plant residue charcoal (Z). Plant biochar  was added at a rate of 1%. The samples were incubated for 100 days, then the capacity and intensity experiment was conducted in a thermally identic

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23

Jordan, David L. ""Peanut Response to Interactions of Soil pH and Gypsum"." Archives of Agriculture Research and Technology (AART) 1, no. 4 (2020): 1–2. http://dx.doi.org/10.54026/aart/1020.

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Soil pH and supplemental calcium applied as gypsum can affect peanut yield. The interaction of soil pH and gypsum applied at flowering is not clearly defined in the peer-reviewed literature. Research was conducted in North Carolina in the USA to determine peanut yield when grown in soil with pH values of 4.5, 5.2, 5.6, and 6.0 when no gypsum or gypsum at 340 and 680 kg/ha was applied at the flowering stage of peanut. Peanut yield increased as soil pH increased in absence of gypsum. Applying gypsum at both rates increased peanut yield when soil pH was 4.5 or 6.0 compared with the no-gypsum cont

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Rangkuti, Nuril Mahda. "ANALYZED SOIL IMPROVEMENT BASED GYPSUM AND CEMENT IN SOIL CLAY." International Journal of Research -GRANTHAALAYAH 7, no. 12 (2020): 12–19. http://dx.doi.org/10.29121/granthaalayah.v7.i12.2019.295.

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Land is an important element of the structure underneath a construction, so that the soil must have a good carrying capacity. But the reality on the ground is that many soils have low carrying capacity, so it is necessary to stabilize the soil with gypsum and cement. This study aims to determine the effective percentage of gypsum and cement addition and the effect of the addition of Gypsum and Cement to physical changes in clay soil in terms of the CBR (California Bearing Ratio) value of the curing time. This research was conducted in the laboratory, by testing the physical properties of the s

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Nuril, Mahda Rangkuti. "ANALYZED SOIL IMPROVEMENT BASED GYPSUM AND CEMENT IN SOIL CLAY." International Journal of Research - Granthaalayah 7, no. 12 (2019): 12–19. https://doi.org/10.5281/zenodo.3595248.

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Land is an important element of the structure underneath a construction, so that the soil must have a good carrying capacity. But the reality on the ground is that many soils have low carrying capacity, so it is necessary to stabilize the soil with gypsum and cement. This study aims to determine the effective percentage of gypsum and cement addition and the effect of the addition of Gypsum and Cement to physical changes in clay soil in terms of the CBR (California Bearing Ratio) value of the curing time. This research was conducted in the laboratory, by testing the physical properties of the s

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Chernousenko, G. I., N. B. Khitrov, and E. I. Pankova. "Magnesium in Saline Gypsum-Bearing Soils of Russia." Eurasian Soil Science 56, no. 7 (2023): 854–67. http://dx.doi.org/10.1134/s1064229323600537.

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Abstract Statistical analysis of 3802 samples of saline soils from different regions of Russia made it possible to substantiate preliminary conclusions about a higher proportion of magnesium in soils containing gypsum in comparison with gypsum-free saline soils. Gypsum is not a toxic salt and its presence does not cause an increase in salinity. Salinization is mainly related to sodium and magnesium salts, with the sodium percentage often exceeding the magnesium percentage. It is statistically substantiated that in the studied saline soils without gypsum, sodium often dominates among cations in

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Herrero, J., O. Artieda, and D. C. Weindorf. "Soil gypsum determination." Soil Science Society of America Journal 84, no. 5 (2020): 1477–84. http://dx.doi.org/10.1002/saj2.20156.

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McKenzie, DC, and HB So. "Effect of gypsum on vertisols of the Gwydir Valley, New South Wales. 1. Soil properties and wheat growth." Australian Journal of Experimental Agriculture 29, no. 1 (1989): 51. http://dx.doi.org/10.1071/ea9890051.

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The effect of gypsum on the properties and crop productivity of 6 contrasting vertisols of the Gwydir Valley, New South Wales was investigated in 1978 and 1979. These soils are often used for dryland wheat production, although crop growth is generally restricted by their structural instability. In 2 of the soils used in our study, the surface aggregates were sodic and dispersive (poor soils), 2 were relatively stable when wetted (good soils), whilst the other 2 soils had surface aggregates that were intermediate in behaviour (intermediate soils). The effects of added gypsum at 4 rates (0, 2.5,

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Korzune, Maciel, Fabrício William Ávila, Renato Vasconcelos Botelho, et al. "Effects of gypsum on growth and nutrient status of forage grasses cultivated between the rows of organically grown Satsuma mandarin in an Oxisol from subtropical Brazil." Crop and Pasture Science 72, no. 11 (2021): 899. http://dx.doi.org/10.1071/cp21316.

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Gypsum (CaSO4.2H2O) decreases the harmful effect of soil acidity on plants and provides calcium (Ca) and sulfur (S) for plant nutrition. Setaria grass (Setaria anceps Stapf) and black oat (Avena strigosa Schreb.) are forage grasses that are tolerant of low soil fertility and may be suitable as inter-row crops for Satsuma mandarin (Citrus unshiu Marc.) grown organically on Oxisol soils, which may suffer low native fertility and high acidity. We evaluated the effect of gypsum application to a low fertility soil from subtropical Brazil on soil chemical fertility, growth and plant nutrition of Sat

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Adane, Assefa, Heluf Gebrekidan, and Kibebew Kibret. "Effects of treatment application rates (fym and gypsum) on selected chemical properties of saline sodic soils under water limited condition in eastern lowlands Ethiopia." Forestry Research and Engineering: International Journal 3, no. 3 (2019): 106–13. http://dx.doi.org/10.15406/freij.2019.03.00086.

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A laboratory incubation experiment was carried out on saline sodic soils collected from Babile, Eastern Ethiopia to evaluate and compare the potentials of gypsum and farm yard manure (FYM) treatments for the reclamation of saline sodic soils. The treatment tested consisted of combination of six rates of gypsum (0, 25, 50, 75, 100 and 125% gypsum requirement) and four rates of farmyard manure (0, 10, 20 and 30 tons FYM ha-1) in a completely randomized design (CRD) replicated three times. Results revealed that sole and combined application of treatments significantly (P<0.001) improved soil p

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Arslan, Awadis. "A computer program to express the properties of gypsiferous soils." Canadian Journal of Soil Science 75, no. 4 (1995): 459–62. http://dx.doi.org/10.4141/cjss95-066.

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Data from gypsiferous soils on an oven-dry basis cannot be compared with similar data from nongypsiferous soils because gypsum loses most of its crystal water on drying at 105 °C. A short computer program that uses the successive-approximation technique was developed to convert percent gypsum values determined on an air-dry basis or on an oven-dry basis into percent gypsum values determined on an oven-dry basis plus crystal water of gypsum. Percent gypsum and percent moisture of the analyzed soil samples are the required input data. The program calculates the corrected percent moisture and the

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Hafez, Emad M., Waleed H. Abou El Hassan, Ibrahim A. Gaafar, and Mahmoud F. Seleiman. "Effect of Gypsum Application and Irrigation Intervals on Clay Saline-Sodic Soil Characterization, Rice Water Use Efficiency, Growth, and Yield." Journal of Agricultural Science 7, no. 12 (2015): 208. http://dx.doi.org/10.5539/jas.v7n12p208.

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<p>Saline-sodic soil is considered as a serious problem which could negatively affect rice water use efficiency, plant growth, and yield. Therefore, the objective of the current study was to investigate the effects of gypsum applied before sowing (i.e. gypsum and without gypsum) and irrigation interval treatments applied after anthesis (irrigation every 4, 6, 8 days) on chemical characterizations of clay saline-sodic soil. In addition, the effect of these treatments on rice growth, water use efficiency and related parameters and yield were investigated. A significant higher efficiency in

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Torrecillas, Emma, Maria del Mar Alguacil, Antonio Roldán, Gisela Díaz, Alicia Montesinos-Navarro, and Maria Pilar Torres. "Modularity Reveals the Tendency of Arbuscular Mycorrhizal Fungi To Interact Differently with Generalist and Specialist Plant Species in Gypsum Soils." Applied and Environmental Microbiology 80, no. 17 (2014): 5457–66. http://dx.doi.org/10.1128/aem.01358-14.

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ABSTRACTPatterns in plant–soil biota interactions could be influenced by the spatial distribution of species due to soil conditions or by the functional traits of species. Gypsum environments usually constitute a mosaic of heterogeneous soils where gypsum and nongypsum soils are imbricated at a local scale. A case study of the interactions of plants with arbuscular mycorrhizal fungi (AMF) in gypsum environments can be illustrative of patterns in biotic interactions. We hypothesized that (i) soil characteristics might affect the AMF community and (ii) there are differences between the AMF commu

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Al-Obaidi, Ahmed A. H., and Ibtihal H. S. Al-Mafragei. "Settlement and Collapse of Gypseous Soils." Tikrit Journal of Engineering Sciences 23, no. 1 (2016): 20–31. http://dx.doi.org/10.25130/tjes.23.1.03.

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The work in this research presents an experimental, theoretical and field study in order to investigate the settlement of Gypseous soils and the effect of water percolation on collapsibility of this soil. In this research, more than five sites where chosen to extract the gypseous soil samples with different gypsum content; the sites located in different regions in Salah Aldeen Governorate. In order to estimate the settlement and collapse of gypseous soils, field tests consist of standard penetration test for depths (1m to 5m) for each site and plate load test were conducted in dry and soaked c

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Babenko, Alexey A. "The effect of phosphogypsum and steel pickling electrolyte on chemical characteristics of paddy soils in the conditions of the Rostov region." Land Reclamation and Hydraulic Engineering 14, no. 1 (2024): 71–88. http://dx.doi.org/10.31774/2712-9357-2024-14-1-71-88.

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Purpose: to study the effect of various ameliorants and their combinations, as well as leaching on paddy soil characteristics in laboratory conditions for determining the possibility of their further application. Materials and methods. In the course of the research, a soil reclamation survey of paddy fields in Rostov region was carried out. Soil samples analyzes were carried out in an environmental analytical laboratory using generally accepted methods. Soils with different chemistry, degrees of salinity and salinization, and different gypsum content were taken for the laboratory experiment. B

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Rizwan, M., K. Ahmed, M. Sarfraz, et al. "Effect of Different Tillage Implements and Gypsum for Fodder Production in Salt Affected Soils using High RSC Water." Cercetari Agronomice in Moldova 52, no. 2 (2019): 166–77. http://dx.doi.org/10.2478/cerce-2019-0017.

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Abstract Selection of suitable tillage implement, as well as amendments, is very important for the reclamation of salt affected soils. For this purpose, a field study was performed using the different rates of gypsum and tillage implements for the production of sorghum and berseem fodders in salt affected field using high RSC water. Treatments including were T1: control (cultivator twice), T2: modified chisel plough (twice), T3: chisel plough (twice), T4: modified chisel plough (twice) + gypsum application @ 100% GR of soil, T5: modified chisel plough (twice) + gypsum application @ 50% GR of s

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Awn, Safa Hussain Abid. "IMPROVEMENT OF GYPSEOUS SOIL BY PRE-WETTING." Diyala Journal of Engineering Sciences 4, no. 1 (2011): 71–82. http://dx.doi.org/10.24237/djes.2011.04105.

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Gypseous soil is one of problematic soils facing civil engineer. The problem appears when constructing heavy buildings or hydraulic structures on these soils after wetted by water from rainfall or from the raising of water table level from any source. On the other hand gypseous soil is considerably strong and has good properties when it is dry. The dissolution of gypsum depends on many factors: gypsum content, temperature, atmospheric pressure and others. Number of Remedies for these soils was carried out by many investigators, some of these methods are not workable, and the others are e

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Silveira, Karien Rodrigues da, Mateus Rosas Ribeiro, Luiz Bezerra de Oliveira, Richard John Heck, and Rachel Rodrigues da Silveira. "Gypsum-saturated water to reclaim alluvial saline sodic and sodic soils." Scientia Agricola 65, no. 1 (2008): 69–76. http://dx.doi.org/10.1590/s0103-90162008000100010.

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Inadequate management of soil and irrigation water contribute to soil degradation, particularly in the alluvial areas of Northeast Brazil, where salinity and sodicity are already common features. This study evaluates the effects of the addition of gypsum in the irrigation water on physical and chemical properties of soils with different levels of salinity and sodicity. Samples were collected at the Custódia irrigation area of Brazil, predominantly covered by alluvial soils. Leaching tests using simulated irrigation water classified as C3S1, and gypsum-saturated irrigation water were carried ou

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Salih, Sarah R., and Qassun S. Mohammed Shafiqu. "Influence of adding gypsum on the properties of lime-stabilized expansive soil." IOP Conference Series: Earth and Environmental Science 1374, no. 1 (2024): 012025. http://dx.doi.org/10.1088/1755-1315/1374/1/012025.

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Abstract Expansive soils present major structural and geotechnical engineering problems. Expansive soil undergoes considerable changes in volume because of variations in water content. These variations in volume can occur as either swelling or shrinking and are commonly referred to as swell-shrink soils. Considering key aspects, such as the characteristics of the soil, is essential when dealing with swelling soils. There are expansive soils in both humid areas, where they pose problems with a high plasticity index, and in semi-arid or arid areas, where even moderately swelling soils can cause

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Anderson, Geoffrey C., Shahab Pathan, James Easton, David J. M. Hall, and Rajesh Sharma. "Short- and Long-Term Effects of Lime and Gypsum Applications on Acid Soils in a Water-Limited Environment: 2. Soil Chemical Properties." Agronomy 10, no. 12 (2020): 1987. http://dx.doi.org/10.3390/agronomy10121987.

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Soil acidity or aluminum (Al) toxicity is a major limitation to crop production. In this paper, we examine the effects of surface-applied lime and gypsum on soil profile chemical properties that affect Al toxicity in short-term (1 year), medium-term (2 years and 8 months) and long-term (10 years) experiments. Sulfate applied to the soil surface as gypsum was leached rapidly to a depth of 40 cm in the short-term despite relatively low amounts (279 mm) of rainfall. In the medium and long-term experiments, 28–54% of the sulfate applied as gypsum was retained in the 0–50 cm soil layer due to adsor

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Chaudhary, Radha, K. C. Patel, Astha Pandey, and Premlata Meena. "Ameliorative Effect of Different Amendments on Nutrients Availability in Sodic Soils." International Journal of Plant & Soil Science 35, no. 23 (2023): 521–30. http://dx.doi.org/10.9734/ijpss/2023/v35i234269.

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A pot house experiment was conducted at the Net House, Regional Research Station, AAU, Anand during rabi season of 2018-19 on Wheat (GW-496) as a indicator crop. Total four amendments i.e. A0(control), A1(Gypsum @ 50% GR), A2(Vermi-compost @ 4.0 t ha-1) and A3 (sulphur @ 50 kg ha-1) and six soils type (S1 to S6) were selected under Factorial CRD. Pot study results indicated that the soil amendments significantly decreased the pH, EC and ESP of sodic soils. The order of decrease in pH of sodic soils from 8.75 to 7.89 by application of amendments remained as: vermin-compost > sulphur > gyp

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Gashi, Njomza, Zsombor Szőke, Antal Czakó, et al. "Gypsum and Tillage Practices for Combating Soil Salinity and Enhancing Crop Productivity." Agriculture 15, no. 6 (2025): 658. https://doi.org/10.3390/agriculture15060658.

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Soil salinity is a major global challenge, reducing fertility and crop productivity. This study evaluated the effects of various soil management practices on the physical, chemical, and microbial properties of saline soils. Six treatments, combining loosening, ploughing, disking, and gypsum amendment, were applied to solonetzic meadow soil with high sodium levels. Soil penetration resistance was measured using a Penetronik penetrometer, while chemical analyses included pH, total salt content, calcium carbonate (CaCO3), humus, and exchangeable cations (Na+, K+, Ca2+, Mg2+). Microbial compositio

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Zhang, Xike, and Zdenko Rengel. "Role of soil pH, Ca supply, and banded P fertilisers in modulating ammonia toxicity to wheat." Australian Journal of Agricultural Research 51, no. 6 (2000): 691. http://dx.doi.org/10.1071/ar99071.

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Di-ammonium phosphate (DAP) and mono-ammonium phosphate (MAP) banded close to seed may cause ammonia (NH 3 ) toxicity by inhibiting seed germination and early seedling growth. A pH increase around the fertiliser band and/or limited Ca supply may exaggerate ammonia toxicity. In the current study, wheat growth and gradients of pH, electrical conductivity (EC), ammonium (NH 4 + ), and P concentration in soil were studied by comparing banded DAP + urea or MAP + urea fertilisers in control or gypsum- or CaCO 3 -treated Lancelin soil. After 21 days of wheat growth, visual symptoms of ammonia toxicit

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Vance, W. H., J. M. Tisdall, and B. M. McKenzie. "Residual effects of surface applications of organic matter and calcium salts on the subsoil of a red-brown earth." Australian Journal of Experimental Agriculture 38, no. 6 (1998): 595. http://dx.doi.org/10.1071/ea97102.

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Summary. The effects of surface soil applications of organic matter and calcium salts on the subsoil (200–280 mm) of a red-brown earth (Natrixeralf) were investigated in a field experiment. The calcium treatments included gypsum, lime or nil-calcium added to the surface soil. To these calcium treatments, organic matter or nil-organic matter was added. Three years after final applications of organic matter and calcium salts to the surface soil, the physical and chemical properties of the subsoil were measured. The bulk physical measurements of the subsoil (penetrometer resistance, bulk density,

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Jayawardane, NS, and J. Blackwell. "The effects of gypsum-enriched slots on moisture movement and aeration in an irrigated swelling clay." Soil Research 23, no. 4 (1985): 481. http://dx.doi.org/10.1071/sr9850481.

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The low yields of flood irrigated row crops on transitional red-brown earths have been attributed to low infiltration rates and poor aeration. A new method for soil amelioration using gypsum-enriched slots to overcome these limitations was investigated in a field experiment. Gypsum-enriched slots were formed by excavating 0.4 m deep and 0.15 m wide parallel slots, mixing the excavated soil with gypsum and loosely refilling the slots. Moisture and aeration profiles were regularly monitored using a neutron moisture meter during the cropping season on field plots with gypsum enriched slots, and o

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Lee, Jin Wook, and Kenneth W. Mudge. "GYPSUM AFFECTS AMERICAN GINSENG'S GROWTH, NUTRITION, AND GINSENOSIDES." HortScience 41, no. 3 (2006): 492C—492. http://dx.doi.org/10.21273/hortsci.41.3.492c.

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In the Northeast, wild American ginseng (Panax quinquefolium L.) is typically found growing in the dense shade provided by deciduous hardwood tree species such as a sugar maple, in slightly acidic soils with relatively high calcium content. Woods cultivated ginseng is often grown in forest farming agroforestry systems under similar conditions. Supplemental calcium by soil incorporation of gypsum (CaSO4·2H2O) is often recommended for woods cultivated ginseng. The objective of this study was to investigate the effects of this practice on soil chemical properties, plant growth and quality of Amer

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Maichin, Phattharachai, Peerapong Jitsangiam, Toon Nongnuang, et al. "Stabilized High Clay Content Lateritic Soil Using Cement-FGD Gypsum Mixtures for Road Subbase Applications." Materials 14, no. 8 (2021): 1858. http://dx.doi.org/10.3390/ma14081858.

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With a lack of standard lateritic soil for use in road construction, suitable economical and sustainable soil-stabilization techniques are in demand. This study aimed to examine flue gas desulfurization (FGD) gypsum, a by-product of coal power plants, for use in soil–cement stabilization, specifically for ability to strengthen poor high-clay, lateritic soil but with a lower cement content. A series of compaction tests and unconfined compressive strength (UCS) tests were performed in conjunction with scanning electron microscope (SEM) analyses. Therefore, the strength development and the role o

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Al-Obaidi, Ahmed A., and Dalia Alsalih. "Experimental Investigation of Capillary Rise in Unsaturated Gypseous Soils." E3S Web of Conferences 427 (2023): 01016. http://dx.doi.org/10.1051/e3sconf/202342701016.

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Capillary rise is a phenomenon that must be considered an inevitable factor when dealing with unsaturated gypseous soil. This study investigates the behavior of gypseous unsaturated soil under capillary action, where different gypsum content and soil densities are experimentally tested in a developed laboratory model consisting of Transparent pipes 1 m long and 0.05 m in diameter. All the pipes are placed inside a rectangular basin with a dimension of (1500×500×500 mm). The soil was taken from Tikrit city in Iraq at a depth of (1.5 to 2 m) under the natural soil surface; the laboratory tests c

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ALAlawi, Hilal Salim, Abideen Ganiyu, Morsaleen Chowdhury, and Atef Badr. "Enhancement of Muscat’s Expansive Soil Using Waste Gypsum." Key Engineering Materials 942 (March 24, 2023): 201–11. http://dx.doi.org/10.4028/p-1m8gw2.

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Expansive soils are known to show significant volumetric changes in response to changes in the moisture content. Such soils swell when the moisture content is increased and shrink when the moisture content is decreased, thereby causing distress and damages to structures founded on them. Construction developments on naturally occurring expansive soils are usually problematic. This study examines the properties of expansive soil obtained from the city of Muscat in Oman. The expansive soil samples were further treated with gypsum, which was obtained from waste plasterboards, at varying quantities

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Brautigan, D. J., P. Rengasamy, and D. J. Chittleborough. "Amelioration of alkaline phytotoxicity by lowering soil pH." Crop and Pasture Science 65, no. 12 (2014): 1278. http://dx.doi.org/10.1071/cp13435.

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Highly alkaline soils (pH >9) may adversely affect agricultural crop productivity. At pH >9.2, aluminium (Al) phytotoxicity may further retard plant development. Most alkaline soils have little alkaline buffering capacity, making it feasible to use acid to lower soil pH to <9.2. Many methods of lowering soil pH have been trialled; however, little research has been done on their relative effectiveness and longevity. Methods trialled in this study as means of lowering soil pH were chemical additives (gypsum), organic additives (glucose, molasses, horse manure, green manure, humus) and l

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