scholarly journals Lanthanide Soil Chemistry and Its Importance in Understanding Soil Pathways: Mobility, Plant Uptake, and Soil Health

Lanthanides ◽  
2019 ◽  
Author(s):  
Michael Aide
Keyword(s):  
Plant Uptake ◽  
Soil Chemistry ◽  
Soil Health

scholarly journals Metal concentrations in oats (Avena sativa L.) grown on acid sulphate soils

2008 ◽  
Vol 18 (1) ◽  
pp. 45 ◽  
Author(s):  
R. FÄLTMARSCH ◽  
P. ÖSTERHOLM ◽  
M. GREGER
Keyword(s):  
Avena Sativa ◽  
Plant Uptake ◽  
Soil Chemistry ◽  
Soil Profiles ◽  
Acid Sulphate ◽  
Acid Sulphate Soils ◽  
Large Pool ◽  
Edta Solution ◽  
The Impact ◽  
Uptake Mechanisms

The aim of the study was to investigate the impact of soil chemistry on the concentrations of Co, Ni, Zn, Mn, Cu and Fe in oats (Avena sativa L. cv. Fiia) grown on Finnish acid sulphate (AS) soils with varying geochemical characteristics. Twenty two soil profiles, which were sampled to a depth of 1 m (five 20 cm section splits), and 26 composite oat grain samples were collected on a total of five fields. The concentrations of Co, Ni, Zn and Mn in the grains were correlated with the NH4Ac-EDTA-extractable concentrations in the soils. However, as these four chalcophilic metals are in general easily lost to drains and not retained as a large pool in the soil in easily-extractable form, also the concentrations in the oats were not in general elevated as compared with average values on other soils. On one of the fields, however, the Co and Ni concentrations in the soil, and thus also in the oats, were clearly elevated. Copper and Fe displayed no correlation between the soil and oat concentrations, indicating that the plant-uptake mechanisms are much more important than variations in geochemistry. It was suggested that the NH4Ac-EDTA solution was not efficient in extracting Fe and Cu, which shows that these metals are bound in relatively immobile oxyhydroxides.;

Influence of lime and gypsum on long-term rehabilitation of a Red Sodosol, in a semi-arid environment of New South Wales

Soil Research ◽  
2014 ◽  
Vol 52 (2) ◽  
pp. 120 ◽  
Author(s):  
J. McL. Bennett ◽  
R. S. B. Greene ◽  
B. W. Murphy ◽  
P. Hocking ◽  
D. Tongway
Keyword(s):  
Soil Respiration ◽  
Soil Chemistry ◽  
Soil Health ◽  
Chemical Properties ◽  
Aggregate Stability ◽  
Arid Environment ◽  
Major Effect ◽  
Sodic Soils ◽  
South Wales ◽  
Semi Arid

This paper determines the influence of lime and gypsum on the rehabilitation of a degraded sodic soil in a semi-arid environment 12 years after application. The aim was to assess rehabilitation strategies for sodic soils as alternatives to the application of gypsum alone. An experimental site was used where lime and gypsum combinations (L0G0, lime 0 t ha–1 and gypsum 0 t ha–1; L0G1, L0G2.5, L0G5, L1G0, L2.5G0, L5G0, L1G1, L2.5G1) had been applied 12 years prior, in 1994. An earlier study had reported on the effects after 3 years of the chemical ameliorants and tillage on a range of soil physical and chemical properties at the site. The current study, sampled in 2006, assessed the effects after 12 years of lime and gypsum on soil chemistry, stability, hydraulics, vegetative growth and soil respiration. Calcium, primarily from lime, was observed to have a major effect on soil health. Significant effects on soil chemistry were limited to increases in exchangeable calcium and decreases in exchangeable magnesium, although aggregate stability in water and hydraulic conductivity were significantly improved where L5G0 was applied. Vegetation patch width, total nitrogen and carbon, and soil respiration were significantly improved where lime had been added at 2.5 or 5 t ha–1. As no lime could be detected in the soil 12 years after application, it was deduced that lime had acted as a catalyst for increased functionality in soil and vegetation interactions. This increased soil functionality resulted in an increased rate of lime dissolution in the soil.

scholarly journals Effects of Garden Amendments on Soil Available Lead and Plant Uptake in a Contaminated Calcareous Soil

2021 ◽  
Vol 11 (13) ◽  
pp. 5777
Author(s):  
Tara Geiger ◽  
Urszula Norton
Keyword(s):  
Contaminated Soils ◽  
Plant Uptake ◽  
Calcareous Soil ◽  
Soil Health ◽  
Calcareous Soils ◽  
Water Soluble ◽  
Inorganic Fertilizer ◽  
Tissue Content ◽  
Inorganic Substances ◽  
High Lead

Gardeners use organic and inorganic substances to enhance plant growth, which can inadvertently impact soil solubility and plant uptake of unknown contaminants. Consequently, human exposure can increase through gardening and consumption of produce grown in potentially contaminated soils. A greenhouse experiment was established to examine the effects of biochar, compost, and common inorganic fertilizer on soil lead (Pb) availability for radish (Raphanus sativus, L.) and lettuce (Lactuca sativa, L.) grown in a calcareous soil containing excessively high lead (Pb), along with Pb accumulation in radish tissue. Results indicate that soil amended with biochar and planted to radish saw an 18% reduction in available Pb and an 11% decrease in plant tissue content when compared to the control. Compost showed an 8% reduction in available Pb, but a 19% increase in tissue content. In contrast, soil with inorganic fertilizer planted to radish increased in both soil Pb availability by 11% and Pb tissue content by 40%. Adding water-soluble inorganic fertilizers to contaminated calcareous soils without added organic matter enhances soil Pb availability and often asymptomatic plant Pb bioaccumulation. In conclusion, gardeners are encouraged to test their soils for contamination and apply biochar in combination with compost, as this combination is recommended to improve soil health and aid in overcoming initial N deficiencies induced by biochar.

scholarly journals Pasture age impacts soil fungal composition while bacteria respond to soil chemistry

2021 ◽  
Author(s):  
Fiona M Seaton ◽  
Robert I Griffiths ◽  
Tim Goodall ◽  
Inma Lebron ◽  
Lisa R Norton
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Soil Chemistry ◽  
Ecosystem Health ◽  
Soil Health ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
Plant Soil ◽  
Plant Soil Interactions

Pasture is a globally important managed habitat providing both food and income. The way in which it is managed leads to a wide range of impacts on soil microbial communities and associated soil health. While there have been several studies comparing pasture farming to other forms of land use, we still have limited understanding of how the soil microbial communities vary between pasture farms and according to management practices. Here we present the results of a field survey across 56 UK livestock farms that are managed by members of the Pasture fed Livestock Association, using amplicon sequencing of the 16S and ITS regions to characterise the soil bacterial and fungal community within fields that have been under pasture for differing durations. We show that grazing management intensity has only limited effects upon microbial community structure, while the duration of pasture since ploughing (ranging from 1 year to over 100 years) impacted the fungal community structure. The impact of management duration was conditional upon soil physicochemical properties, particularly pH. Plant community effects on upon soil bacterial and fungal composition appear to also interact with the soil chemistry, highlighting the importance of plant-soil interactions in determining microbial community structure. Analyses of microbial indicators revealed proportionally more fungal taxa that responded to multiple ecosystem health associated properties than bacterial taxa. We also identified several fungal taxa that both acted as indicators of soil health related properties within our dataset and showed differentiation between grassland types in a national survey, indicating the generality of some fungal indicators to the national level. Members of the Agaricomycetes were associated with multiple indicators of soil health. Our results show the importance of maintaining grassland for the development of plant-soil interactions and microbial community structure with concomitant effects on soil and general ecosystem health.

Ferrihydrite dissolution at the root zone of crops under semi-arid condition controls the plant uptake of uranium and arsenic

2020 ◽  
Author(s):  
Arindam Malakar ◽  
Michael Kaiser ◽  
Daniel D. Snow ◽  
Harkamal Walia ◽  
Chittaranjan Ray
Keyword(s):  
Plant Uptake ◽  
Root Zone ◽  
Arid Condition ◽  
Semi Arid

Impact of Cereal+legume Intercropping Systems on Productivity and Soil Health -A Review

2020 ◽  
Vol 11 (3) ◽  
pp. 274-286
Author(s):  
Ankita Begam ◽  
◽  
Ramyajit Mondal ◽  
Susanta Dutta ◽  
Hirak Banerjee ◽  
...  
Keyword(s):  
Soil Health

Organizational and Economic Principles of Agricultural Machinery Use

2018 ◽  
Vol 7 (2) ◽  
pp. 42-46
Author(s):  
Dmytro Kachan
Keyword(s):  
Quality Indicators ◽  
Soil Health ◽  
Technical Support ◽  
Organizational Forms ◽  
Topical Issue ◽  
Agricultural Machinery ◽  
Labor Costs ◽  
Agricultural Enterprises ◽  
Soil Cultivation ◽  
Agrarian Sector

Abstract Technical support of producers of agrarian products has always been and will remain a topical issue in realities of agrarian sector of Ukraine. In recent years, integrated forms of agricultural enterprises have become more widespread, which make it possible to increase and renew a machine-tractor park of their participants. In course of study four main technologies of soil cultivation and their impact were considered, an amount of necessary machinery and equipment, energy and labor costs, and impact on quality indicators of soil health. Also, main organizational forms of enterprises that provide equipment rental services or perform fieldwork were analyzed. Proposals were made regarding a merger of existing enterprises into agro technical centers, which would increase an efficiency of their functioning and cover functions of regional self-government. Also, the most common forms of machinery usage by agricultural enterprises were considered.

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