Microbial Response to the Application of Amendments in a Contaminated Soil with Trace Elements

Branzini, Agustina; Zubillaga, Marta Susana; Zubillaga, M. M.

doi:10.3844/ajessp.2009.94.98

Cited by 2 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the soils under study, it was observed an increase in P sorption with temperature In addition, at high temperature a large proportion of P adsorbed permanently, thereby decreasing the equilibrium P concentration in soil solution Huang et al (2012). In addition temperature plays a significant role for the glucose concentrations (Soares et al, 2011) and in soil due to the presence of microbial activity may also alter (Branzini et al, 2014).…”

Section: Discussionmentioning

confidence: 96%

Influence of Incubation Period, Temperature and Different Phosphate Levels on Phosphate Adsorption in Soil

Rajput¹,

Panhwar

Naher³

et al. 2014

American Journal of Agricultural and Biological Sciences

View full text Add to dashboard Cite

Phosphorus (P) is the most important element after nitrogen but P sorption properties are poorly documented in many soils. In this study, P sorption capacity in relation to incubation period and temperature under various P levels were determined for two different soil series (Rustam and Miani). Phosphorus was added at 5, 10, 25, 50, 100, 250, 500 and 1000 µg g −1 to the soils and incubated for the period of 1, 3, 7, 15, 30 and 60 days at 25 and 35±1°C temperatures. Phosphorus sorption was significantly influenced by the temperature, added P and incubation period. Clay content has major influence on P sorption. Rustum Series adsorbed more P than that of Miani Series. The P sorption was faster at high temperature (35°C). At the end of period in the Rustum Series with added 2.5 and 1000 µg g −1 P level, P sorption were found 0.7 and 943 µg g −1 , respectively, at 25±1°C temperature, whereas at 35±1°C temperature the respective P sorption for same P levels were 1.8 and 987.0 µg g −1 . In the Miani Series at 25±1°C temperature, P sorption was 0.7 and 941 µg g −1 , while at the temperature of 35±1°C, P sorption were 1.0 and 986 µg g −1 soil. Increasing P levels, temperature and incubation, resulted in higher P sorption. Hence, high clay in combination with calcium carbonate contents enhanced P adsorption, while high organic matter and high native soil P resulted in lesser P adsorption.

show abstract

Section: Discussionmentioning

confidence: 96%

Influence of Incubation Period, Temperature and Different Phosphate Levels on Phosphate Adsorption in Soil

Rajput¹,

Panhwar

Naher³

et al. 2014

American Journal of Agricultural and Biological Sciences

View full text Add to dashboard Cite

show abstract

Assisted phytoextraction of heavy metals: compost and Trichoderma effects on giant reed (Arundo donax L.) uptake and soil N-cycle microflora

et al. 2013

View full text Add to dashboard Cite

Little information is available as to the real effectiveness of the phytoextraction remediation technique, since laboratory experiments are still the most common way in which this is measured. Given this, an experiment on a cadmium-polluted soil was carried out in open field conditions in Southern Italy with the aim of assessing the growth and the phytoextraction potential of giant reed (Arundo donax L). Compost fertilisation and Trichoderma harzianum A6 inoculations were used to verify the possibility of increasing the metal uptake of the crop. Biomass yield of giant reed in the first growth season (average 12.8 Mg ha -1 ) was not affected by the Cd concentration in the soil and this increased significantly with compost fertilisation (13.8 Mg ha -1 ). Both compost fertilisation and T. harzianum inoculation increased cadmium uptake and translocation in leaves. Nitrifying bacteria was shown to be a useful tool to biomonitor soil quality. These results proved the suitability of the giant reed for assisted-phytoremedation with the use of compost fertilisation and T. harzianum. IntroductionThe extent of soil pollution by potentially toxic elements (PTE) in industrialised areas is well documented (Glass, 1998;Black, 1999) and represents an important environmental concern due to their potential accumulation in the food chain. Human activities such as industrial plants, mining, road transport and the unwise application of sewage sludges, fertilisers and pesticides to agricultural soils are recognised to be the main sources of PTE pollution (do Nascimento et al., 2006;Lado et al., 2008). A large number of methods are available to remediate soils, such as soil washing with synthetic surfactants. However, these are extremely expensive, such that a large number of sites remain contaminated (Ensley, 2000). Moreover, ex situ soil reclamation techniques lead to a big reduction in soil fertility due to the soil disturbance and to the toxicity of synthetic surfactants. Soil washing with humic substances extracted from composted organic matter or from geochemical deposits represents a reliable alternative (Conte et al., 2005) and phytoextraction is a valuable complementary technique. It is low cost and environmentally safe (Wu et al., 2006) and is able to both remove heavy metal pollutants from the soil and to offer important economic and agronomic advantages (Mattina et al., 2003). It involves the utilisation of plants to remove heavy metals from soil and concentrate them in the biomass. For years now, metal hyperaccumulating plants such as Alyssum murale, Berkheya coddii, Brassica juncea and Thlaspi caerulescens have been considered the most suitable tool to decontaminate metal-polluted soils, but the low biomass growth and scarce ability to accumulate various different metals together (Krämer, 2005) have discouraged their inclusion in commercial phytoextraction protocols (do Nascimento et al., 2006). Consequently, the current trend is to use fast-growing high biomass crops that accumulate moderate levels of metals in ...

show abstract

Microbial Response to the Application of Amendments in a Contaminated Soil with Trace Elements

Cited by 2 publications

References 23 publications

Influence of Incubation Period, Temperature and Different Phosphate Levels on Phosphate Adsorption in Soil

Influence of Incubation Period, Temperature and Different Phosphate Levels on Phosphate Adsorption in Soil

Assisted phytoextraction of heavy metals: compost and Trichoderma effects on giant reed (Arundo donax L.) uptake and soil N-cycle microflora

Contact Info

Product

Resources

About