Investigation of Lithium Application and Effect of Organic Matter on Soil Health

The extensive use of lithium (Li) ion-based batteries has increased the contamination of soil and water systems due to widespread dispersal of Li products in the environment. In the current study, the influence of Li application on soil fertility and leachate was observed. Three soil samples were collected and five treatments of Li (0, 50, 100, 150 and 200 mg/L) were applied. After three months of Li treatment, leachate was collected and soil samples were subjected to physical and chemical analyses. The results showed that the mean values of soil pH were increased slightly after Li application while electrical conductivity (EC) ranged from 1.2 to 5.1 µS/cm, indicating that soil was slightly saline in nature. The sodium was observed to be greater than the recommended values (0.3–0.7 mg/kg) in Li-amended soil while calcium and magnesium values decreased in soils compared to untreated soil. Mean values of phosphorus and potassium were greater before Li application and reduced considerably after Li application. Leachate analysis showed that all the parameters differed significantly except those of zinc and iron. The EC of leachate samples ranged from 2286–7188 µS/cm, which shows strong salinity. The sodium adsorption ratio (SAR) ranged from 1–11, which indicates that it falls into the marginal soil category. Lithium concentration in leachate samples ranged from 0–95 mg/L, which was significantly higher than the acceptable value for lithium (2.5 mg/L) in leachate. A soil sample (3) with an additional 10% organic matter showed that after Li application, the loss of nutrients in leachate was less as compared to the other two samples, demonstrating that organic matter improved soil conditions and suppressed the negative effects of Li on soil. Our results could raise concerns about risks in situations where food and fodder crops are associated with Li-contaminated waste disposal.

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Soil acidity and mobile aluminum status in pseudogley soils in Cacak-Kraljevo basin

Journal of the Serbian Chemical Society ◽

10.2298/jsc110629201d ◽

2012 ◽

Vol 77 (6) ◽

pp. 833-843 ◽

Cited By ~ 5

Author(s):

Ivica Djalovic ◽

Djordje Jockovic ◽

Goran Dugalic ◽

Goran Bekavac ◽

Bozana Purar ◽

...

Keyword(s):

Forest Soil ◽

Forest Soils ◽

Soil Acidity ◽

Arable Land ◽

Soil Samples ◽

Soil Conditions ◽

Arable Soils ◽

Mean Values ◽

Exchangeable Acidity ◽

The Mean

Soil acidity and aluminum toxicity are considered most damaging soil conditions affecting the growth of most crops. This paper reviews the results of tests of pH, exchangeable acidity and mobile aluminum (Al) concentration in profiles of pseudogley soils from Cacak-Kraljevo basin. For that purpose, 102 soil pits were dug in 2009 in several sites around Cacak- Kraljevo basin. The tests encompassed 54 field, 28 meadow, and 20 forest soil samples. Samples of soil in the disturbed state were taken from the Ah and Eg horizons (102 samples), from the B1tg horizon in 39 field, 24 meadow and 15 forest pits (a total of 78 samples) and from the B2tg horizon in 14 field, 11 meadow, and 4 forest pits (a total of 29 samples). Mean pH values (1M KCl) of the tested soil profiles were 4.28, 3.90 and 3.80 for the Ah, Eg and B1tg horizons, respectively. Soil pH of forest samples was lower than those in meadow and arable land samples (mean values of 4.06, 3.97 and 3.85 for arable land, meadow and forest samples, respectively). Soil acidification was especially intensive in deep horizons, as 27% (Ah), 77% (Eg) and 87% (B1tg) soil samples had the pH value below 4.0. Mean values of total exchangeable acidity (TEA) were 1.55, 2.33 and 3.40 meq 100 g-1 for the Ah, Eg and B1tg horizons, respectively. The TEA values in forest soils were considerably higher (3.39 meq 100 g-1) than those in arable soils and meadow soils (1.96 and 1.93, respectively). Mean mobile Al contents of tested soil samples were 11.02, 19.58 and 28.33 mg Al 100 g-1 for the Ah, Eg and B1tg horizons, respectively. According to the pH and TEA values, mobile Al was considerably higher in the forest soils (the mean value of 26.08 mg Al 100 g-1) than in the arable soils and meadow soils (the mean values of 16.85 and 16.00 mg Al 100 g-1, respectively). The Eg and B1tg horizons of the forest soil had especially high mobile Al contents (the mean values of 28.50 and 32.95 mg Al 100 g-1, respectively). High levels of mobile Al were especially frequent in the forest soils, with 35% (Ah), 85.0% (Eg) and 93.3% (B1tg) of the tested samples ranging above 10 mg Al 100 g-1.

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SOCIAL INFLUENCE AND DEPENDENCE IN THE FACEBOOK USE BY ROMANIAN AND LITHUANIAN UNIVERSITY STUDENTS

Problems of Education in the 21st Century ◽

10.33225/pec/17.75.354 ◽

2017 ◽

Vol 75 (4) ◽

pp. 354-365

Author(s):

Vincentas Lamanauskas ◽

Dragos Daniel Iordache ◽

Costin Pribeanu

Keyword(s):

University Students ◽

Social Influence ◽

Social Networking ◽

Latent Variables ◽

Negative Effects ◽

Mean Values ◽

Social Networking Websites ◽

The Social ◽

Two Samples ◽

The University

The time spent on Facebook by university students is continuously increasing. This fact is raising many questions as regards the relation between the social networking websites and the university. The educators are challenged to understand the factors that are driving the adoption of social networking websites, the characteristics of the daily use as well as the positive and negative effects on the university work. The social influence has been recognized as one of the factors that are driving the adoption of information systems. On another hand, the excessive use may lead to addiction. The first objective of this research is to explore the correlation between the social influence and the Facebook dependence. A model with these latent variables has been specified and tested on two samples of university students, the first from Romania and the second from Lithuania. The second objective of the research is to comparatively discuss the measures in each country. A multi-group confirmatory factor analysis has been carried on to test the configural and metric invariance. The comparison of means shows that university students reporting higher social influence have a higher risk of Facebook dependence. The comparative analysis revealed that for both variables, the mean values are higher for the Romanian sample. Keywords: e-learning process, Facebook dependence, invariance analysis, social influence.

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Changes in physico-chemical properties of paddy soil due to water and fertilizer management

Asian-Australasian Journal of Bioscience and Biotechnology ◽

10.3329/aajbb.v5i2.53865 ◽

2020 ◽

Vol 5 (2) ◽

pp. 65-71

Author(s):

Israt Jahan ◽

AKM Abul Ahsan ◽

MMR Jahangir ◽

Mahmud Hossain ◽

Md Anwarul Abedin

Keyword(s):

Organic Matter ◽

Soil Properties ◽

Bulk Density ◽

Total Nitrogen ◽

Soil Ph ◽

Crop Production ◽

Soil Health ◽

Chemical Properties ◽

Soil Samples ◽

Physico Chemical

Soil physico-chemical properties are an important phenomenon for sustainable crop production and maintenance of optimum soil health. Hence, a laboratory measurement was conducted with soil samples of three years long experimental field of the Department of Soil Science, Bangladesh Agricultural University, Mymensingh to assess the changes in five selected soil physico-chemical properties viz. soil texture, bulk density, soil pH, total nitrogen and organic matter. The experiment was laid out in a split plot design with two water regimes (continuous flooding and alternate wetting & drying) in the main plots and five fertilizer treatments (N0 - control, N1- 140 kg N/ha as PU, N2- 104 kg N/ha as USG (2× 1.8 g/ 4 hills), N3 - 5 t CD + PU @ 140 kg N /ha on IPNS basis and N4- 5 t CD + USG (2× 1.8 g/ 4 hills @ 104 kg N/ha)) in the subplots under rice-rice cropping pattern with three replications. After three years, soil samples were collected at 0-5 and 5-10 cm soil depths for measuring bulk density and at 0-10 cm depth for other soil properties and analyzed. Results found that % sand, % silt, % clay, bulk density and soil pH was not changed significantly compared to initial status. Percentage of total nitrogen and organic matter was significantly affected by irrigation and fertilization. Total nitrogen (%) was higher in AWD whereas organic matter (%) was higher in CF practice. The highest total nitrogen (%) and organic matter (%) was found in N4 treatment in which USG was applied in combination with cowdung as organic manure. It can be suggested that N4 treatment was formed good combination for sustaining chemical properties of soil. Further long- term experimentation will be needed to know the changes in soil properties for sustainable crop production and improving soil health. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (2), 65-71

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Aggregate Stability in Soils of Twelve Argo-ecological Zones of Bangladesh Based on Organic Carbon and Basic Cations

Annals of Bangladesh Agriculture ◽

10.3329/aba.v23i2.50053 ◽

2019 ◽

Vol 23 (2) ◽

pp. 27-36

Author(s):

S Arofi ◽

MM Rahman ◽

HK Shiragi ◽

MA Alam ◽

MM Islam ◽

...

Keyword(s):

Organic Carbon ◽

Soil Aggregates ◽

Soil Health ◽

Aggregate Stability ◽

Soil Aggregate ◽

Soil Samples ◽

Negative Effects ◽

Ecological Zones ◽

Soil Fraction ◽

Basic Cations

Soil aggregate is one of the vital indicators of soil health that depends on organic carbon (OC), texture and basic cations. A total of 206 soil samples were collected from 12 agro-ecological zones (AEZs) of Bangladesh to study the effects of organic carbon (OC), basic cations (Ca, Mg, K and Na) and different sized soil particles on soil aggregate stability. Soil samples were analyzed for bulk density, pH, OC, texture, basic cations and water stable soil aggregates (WSA) following standard protocols. Data revealed that OC positively increased WSA, while monovalent basic cations Na+ and K+ showed negative effects. Water stable soil aggregates and C stock of 0.25 mm sized soil fraction were found higher than that of larger sized soil fractions of 0.5, 1.0 and 2.0 mm. The roles of divalent basic cations Ca2+ and Mg2+ on WSA were found to be indistinct and need to be studied further. Ann. Bangladesh Agric. (2019) 23(2) : 27-36

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The Effects of Treated Wastewater Irrigation on Soil Health

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.393-395.1545 ◽

2011 ◽

Vol 393-395 ◽

pp. 1545-1549 ◽

Cited By ~ 1

Author(s):

Yan Yu ◽

Bian Wen ◽

Yan Yang ◽

Zhao Hua Lu

Keyword(s):

Public Health ◽

Organic Matter ◽

Arid Regions ◽

Soil Health ◽

Treated Wastewater ◽

Negative Effects ◽

Irrigation Systems ◽

Soil Layers ◽

Semi Arid ◽

Treated Wastewater Irrigation

The main source of marginal water for agriculture in arid and semi-arid regions in many countries is treated wastewater. The treated wastewater is full of organic matter and nutrients which can be absorbed by soil and plant. But there are several issues to be addressed in reuse of agriculture: acute and cumulative public health; negative effects on crops, soil, and irrigation systems; salinity effects on soil, crop and most critical, the accumulation of salts in soil layers, and in unsaturated aquifers.

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PENGARUH LIMBAH INDUSTRI AGAR-AGAR RUMPUT LAUT TERHADAP SIFAT KIMIA TANAH DAN PERTUMBUHAN TANAMAN JAGUNG PADA TANAH INCEPTISOL KECAMATAN PANDAAN PASURUAN

BUANA SAINS ◽

10.33366/bs.v18i1.939 ◽

2018 ◽

Vol 18 (1) ◽

pp. 57

Author(s):

Bambang Siswanto ◽

Widowati Widowati

Keyword(s):

Organic Matter ◽

Solid Waste ◽

Organic Material ◽

Soil Acidity ◽

Organic Fertilizer ◽

Organic Matter Content ◽

Soil Samples ◽

Industry Waste ◽

Phosphorus And Potassium ◽

Seaweed Industry

Inceptisol is one type of land order that is widely spread in Indonesia. Its distribution reaches approximately 52.0 million hectares (Kasno, 2009). Inceptisol is widely used as an intensive farm because its management is less precise, then most Inceptisol fertility rate becomes low. This is often shown by soil acidity, organic matter content, and low nitrogen, to improve such properties one of which can use the addition of organic matter. The problem that often arises is the high cost of organic fertilizer. Seaweed industry waste is a source of organic material that has not been widely utilized. Of the total raw materials processed, there is 65 to 70 percent of industrial products produced by the seaweed industry waste every day (Mandela. 2010). Usually these side products are only left to accumulate at the landfill site. Seaweed industry waste has the potential to be used as a source of soil organic matter because the organic material content of products of seaweed industry reaches 6.4% (Afif, 2011). The addition of nutrients to the application of inorganic materials is considered as an alternative step in increasing crop productivity. Based on the description above, it is necessary to conduct research to utilize the waste of seaweed industry, to get high corn production in Inceptisol. The objectives of this research are: (1) To know the effect of seaweed industrial solid waste on soil chemical properties Inceptisol and (2) growth of maize. The research was conducted in the greenhouse, while for the analysis of soil samples and the waste of seaweed industry was conducted in soil chemistry and soil physics laboratory, Department of Soil Science, Faculty of Agriculture, Brawijaya Universities. The study was conducted from May to August 2016. The soil samples used in this study were taken from Kemirisewu village, Pandaan sub-district, Pasuruan district at a depth of 0-20 cm. The waste of seaweed gel plant is obtained from PT. HAKIKI DONARTA, Pandaan Sub-district, Pasuruan Regency. The basic fertilizers used are Urea, KCl, and TSP. Maize seeds used as indicator plants are hybrid varieties of BISI-2 maize. This study used Completely Randomized Design (RAL) with 4 (four) treatments and 3 (three) replications. Addition of solid waste of seaweed with the dosage of 15 Mg/ha, increased of soil acidity and C-Organic content, besides also can increase Phosphorus and Potassium content available, Nitrogen, Phosphorus, and Potassium plant uptake, and the best growth of maize.

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The Determine of Sugar Beet Nutrition Problems in Konya Plain’s Soils

Advanced Research in Life Sciences ◽

10.1515/arls-2017-0002 ◽

2017 ◽

Vol 1 (1) ◽

pp. 7-20

Author(s):

Nesim Dursun ◽

Sait Gezgin ◽

Mehmet Musa Özcan

Keyword(s):

Organic Matter ◽

Sugar Beet ◽

Ph Value ◽

Exchange Capacity ◽

Soil Samples ◽

Calcium Magnesium ◽

Mn Content ◽

The Mean ◽

Phosphorus And Potassium ◽

Sugar Beet Crop

Abstract This study was aimed to determine the deficiency or excessivity of nutrients for sugar beet crop in Konya plain. The results showed that the pH value was found as 7.65 and soils were classified as sodic; the organic matter was 1.59% and 92.9% of the soil samples was poor in terms of the organic matter. The mean lime content (CaCO3) was determined capacity was 26.07 and 97.1% of the soil samples was limy and the mean cation Exchange capacity was 26.07 me/100g, and it was varied between 10.72 me/100g and 44.7 me/100g. The mean available NH4+NO3 nitrogen content, phosphorus and potassium for crop were as 0.059%, 10.21 ppm and 1.39 me/100g, respectively. According to the these results, NH4+NO3 nitrogen and potassium amounts were sufficient while the phosphourus content was sufficient in 65.8% and insufficient in 34.2%. Cu and Mn content in soil samples were adequate. The sufficient amounts of Zn, B and Fe were 85.7%, 45.8% and 95.7% and their insufficient amounts were 14.53%, 54.2% and 4.3%, respectively. According to the result of leaf analyses, the content of nitrogen, phosphorus, potassium, calcium, magnesium and sodium were sufficient. The deficiencies of iron, zinc and bor were found in 4.3%, 14.3% and 38.6% of the total samples, respectively.

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Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

Agrokémia és Talajtan ◽

10.1556/agrokem.59.2010.1.12 ◽

2010 ◽

Vol 59 (1) ◽

pp. 99-108 ◽

Cited By ~ 3

Author(s):

M. Takács ◽

Gy. Füleky

Keyword(s):

Organic Matter ◽

Humic Acid ◽

Natural Organic Matter ◽

Extraction Methods ◽

Soil Samples ◽

Hot Water ◽

Soil Extracts ◽

Water Percolation ◽

Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

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Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Minerals ◽

10.3390/min11040373 ◽

2021 ◽

Vol 11 (4) ◽

pp. 373

Author(s):

Jonathan Suazo-Hernández ◽

Erwin Klumpp ◽

Nicolás Arancibia-Miranda ◽

Patricia Poblete-Grant ◽

Alejandra Jara ◽

...

Keyword(s):

Organic Matter ◽

Crop Production ◽

Agricultural Soils ◽

Ph Value ◽

Consumer Products ◽

Soil Samples ◽

Engineered Nanoparticles ◽

P Availability ◽

Agricultural Crop ◽

Phosphorus Sorption

Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

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Complementary Use of Magnetometric Measurements for Geochemical Investigation of Light REE Concentration in Anthropogenically Polluted Soils

Minerals ◽

10.3390/min11050457 ◽

2021 ◽

Vol 11 (5) ◽

pp. 457

Author(s):

Piotr Fabijańczyk ◽

Jarosław Zawadzki

Keyword(s):

Soil Samples ◽

Soil Conditions ◽

Soil Cores ◽

Light Rare Earth ◽

Polluted Soils ◽

Chemical Measurements ◽

Geochemical Investigation ◽

Light Rare Earth Elements ◽

Soil Magnetic Susceptibility ◽

Geophysical Measurements

The purpose of this study was to use fast geophysical measurements of soil magnetic susceptibility (κ) as supplementary data for chemical measurements of selected light rare earth elements (REEs) in soil. In order to ensure diversity in soil conditions, anthropogenic conditions and types of land use, seven areas were selected, all located in regions subjected to past or present industrial pollution. Magnetometric parameters were measured using a selected magnetic sensor that was specially designed for measurements of soil cores and were used to classify collected soil cores into six distinctive types. The analysis of REEs concentrations in soil was carried out taking into account the grouping of collected soil samples based on the type of study area (open, forested and mountain), and additionally on the measured magnetometric parameters of collected soil cores. A use of magnetometric measurements provided different, but complementary to chemical measurements information, which allowed to obtain deeper insight on REEs concentrations in soils in studied areas.

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