scholarly journals Morphological and Physico-chemical Characterization of Salt-Affected Soils of Muktsar District of Punjab

Agropedology ◽  
2019 ◽  
Vol 27 (2) ◽  
Author(s):  
O.S. Sandhu ◽  
◽  
H.S. Jassal ◽  
S.S. Dhaliwal ◽  
◽  
...  
Keyword(s):  
Sandy Loam ◽  
Chemical Characterization ◽  
Saline Soils ◽  
Organic Carbon Content ◽  
Silty Clay ◽  
Sodic Soils ◽  
Massive Structure ◽  
Physico Chemical ◽  
Salt Affected Soils

Nine representatives salt-affected (P1 to P9) soils from Muktsar district of Punjab were studied for their morphological and physico-chemical characteristics. Pedon P1, P2 and P3 belong to saline soils, P4, P5 and P6 categorised as sodic soils and P7, P8 and P9 represent the saline-sodic soils. These pedons have weak to moderate, fine to medium subangular blocky structure in A and B horizon and massive structure in C horizons. The calcretes in saline-sodic soils were comparable to saline soils but higher than sodic soils. The texture of these soils varied from silty clay loam, silt, and silt loam through loam to sandy loam. The pH of the soil ranged from 8.3 to 10.2, 8.6 to 10.0 and 8.2 to 9.4 in saline, sodic and saline-sodic soils, respectively. Electrical conductivity in surface horizon varied from 4.96 to 19.1 dS m-1 in saline soils, 0.44 to 2.25 dS m-1 in sodic-soils and 2.30 to 11.8 dS m-1 in saline-sodic soils. Organic carbon content ranged from 0.02 to 0.87 per cent in saline soils, 0.01 to 0.29 per cent in sodic soils and 0.01 to 0.68 per cent in saline-sodic soils and decreased with depth. Calcium and magnesium cations were dominated on the exchange complex and their content varied from 3.2 to 6.4 cmol(+)kg-1 and that of Na+ and K+ varied from 0.09 to 2.87 and 0.06 to 2.33 cmol(+)kg-1, respectively.

scholarly journals Physico-chemical characterization of some selected soil series of Mymensingh and Jamalpur districts of Bangladesh

2016 ◽  
Vol 13 (2) ◽  
pp. 197-206
Author(s):  
PR Sheel ◽  
MAH Chowdhury ◽  
M Ali ◽  
MA Mahamud
Keyword(s):  
Sandy Loam ◽  
Chemical Properties ◽  
Chemical Characterization ◽  
Agricultural Practices ◽  
Soil Series ◽  
Total N ◽  
Positive Correlation ◽  
Physico Chemical ◽  
Very High

The soil physico-chemical properties have been disturbed due to long continued intensive agricultural practices. Under this situation we are approaching rapidly to a very strong future challenge in sustaining the quality of our soil. This study was conducted to evaluate the physico-chemical properties of the selected soil series. The area covered Mymensingh and Jamalpur districts of Bangladesh. Soil samples were collected randomly from different profiles of Lokdeo, Tarakanda, Silmondi and Melandah soil series during March-May, 2014 and analysed. All soils were acidic and textural classes were sandy loam, silt loam, loam, and clay loam. Organic matter and total N contents low to very low. Available S content in the upper layers of most soils were medium to optimum and in the deeper layer low to medium. The exchangeable K, Ca and Na contents were also low. The upper layers of all the locations contained higher amounts of available Zn. The available Cu and Fe contents of most soils were very high. The soils of all locations contained very high amount of available Mn except the deeper layers (45-75 cm) of Melandah which contained optimum amount of available Mn. Soil pH showed negative correlation with total N and available S. Total N showed positive correlation with soil OM, available Cu and available S. There was positive correlation between available S and available Mn.J. Bangladesh Agril. Univ. 13(2): 197-206, December 2015

scholarly journals Physico-chemical Characterization of the Soils of New Localities of Côte d’Ivoire: Case of the Departments of Man (West) and Toumodi (Centre)

2021 ◽  
pp. 11-21
Author(s):  
Koffi Antoine ◽  
Soro Dogniméton ◽  
Diomandé Métangbo ◽  
Konan Djézou ◽  
Essehi Jean Lopez ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Silty Clay ◽  
Acidic Ph ◽  
Chemical Analyses ◽  
Internal Drainage ◽  
Physical Description ◽  
Exchangeable Bases ◽  
Physico Chemical ◽  
New Localities

In order to assess the suitability of soils for rubber cultivation in the departments of Man and Toumodi, two new rubber-growing areas, a study was carried out to evaluate the physical, physico-chemical and chemical characteristics of soils under rubber trees (Hevea brasiliensis). The methodology used consisted of a physical description of twelve soil pits, coupled with chemical analyses of the soil samples taken. The pedological profiles carried out revealed that these soils belong mainly to the Ferralsol class with distinctive characteristics, except for those of Kimoukro (Toumodi) which belong to the Cambisol class. The Toumodi soils, of silty-clay-sandy texture, are provided with coarse elements (≥30 p.c) with good internal drainage in the surface horizons. More or less deep, depending on the topographical position, Toumodi soils are slightly acidic (pH = 6) and less supplied with nitrogen and exchangeable bases. The soils of Man, on the other hand, have a sandy-clay texture, with more than 30 p.c. of clay from the surface to the depths. The bulk density (Da = 1.6 ≥ 1.5 g/cm3) was higher for the soils of this locality compared to those of Toumodi (Da = 0.8 ≤ 1 g/cm3). The soils of Man, which are less rich in nitrogen and carbon, are more acidic (pH = 5.4). Exchangeable base contents and CEC are high, mainly in the upper surface horizons.

Laboratory Methods for the Physico-Chemical Characterization of Recombinant Allergens as Reference Standards

Alergologia ◽  
2020 ◽  
Vol 1 (4) ◽  
pp. 7
Author(s):  
Mariana Vieru ◽  
Florin-Dan Popescu ◽  
Laura Haidar ◽  
Carmen Bunu-Panaitescu
Keyword(s):  
Chemical Characterization ◽  
Reference Standards ◽  
Recombinant Allergens ◽  
Laboratory Methods ◽  
Physico Chemical

Mineralogical and physico-chemical characterization of a sintered feldspathic sand

2010 ◽  
Vol 35 (5) ◽  
pp. 261-267 ◽  
Author(s):  
Wissemn Gallala ◽  
Mohamed Essghaier Gaied ◽  
Borhen Kchaou
Keyword(s):  
Chemical Characterization ◽  
Physico Chemical

Physical - Chemical Issues of Cephalosporin Intercalated Nanoparticles for Life - Threatening Infections Treatment

2001 ◽  
Vol 71 (3) ◽  
pp. 342-349
Author(s):  
Lucian Eva ◽  
Letitia Doina Duceac ◽  
Liviu Stafie ◽  
Constantin Marcu ◽  
Geta Mitrea ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Advanced Characterization ◽  
Generation Cephalosporin ◽  
Fourth Generation ◽  
Exchange Method ◽  
Physico Chemical ◽  
Life Threatening ◽  
Double Hydroxide ◽  
Double Hydroxides

The fourth generation cephalosporin antibacterial agent, cefepime, was loaded into layered double hydroxides for enhancing antibiotic efficiency, reducing side effects, as well as achieving the sustained release property. The intercalation of antibiotic into the inter-gallery of ZnAl-layered double hydroxide (LDH) was carried out using ion exchange method, by this constituting a nano-sized organic-inorganic hybrid material for a controlled release novel formulation. Although cefepime is a broad spectrum antibiotic, it has various adverse effects and a significant degradation rate. Thus, the preparation and physico-chemical characterization of nanomaterials able to intercalate this drug is an important study for medical and pharmaceutical field. The antibiotic inclusion into LDHs nanostructure was confirmed by advanced characterization techniques and the release profile of cefepime was analysed with the respect to pH of the simulated media.

Structural and physico-chemical characterization of some soda lime zinc alumino-silicate glasses

2012 ◽  
Vol 358 (23) ◽  
pp. 3280-3288 ◽  
Author(s):  
S. Petrescu ◽  
M. Constantinescu ◽  
E.M. Anghel ◽  
I. Atkinson ◽  
M. Olteanu ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Soda Lime ◽  
Silicate Glasses ◽  
Physico Chemical ◽  
Alumino Silicate
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