2005
DOI: 10.1002/ps.1095
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The crucial role of calcium interacting with soil pH in enhanced biodegradation of metam‐sodium

Abstract: Enhanced biodegradation of soil-applied pesticides has long been correlated with soil pH above ca 6.5-7.5, but the possibility of confounding or interdependence with calcium, given that soil calcium concentration increases exponentially as pH rises above that range, has not previously been studied. Enhanced biodegradation of the broad-spectrum biocide metam-sodium was readily induced de novo in a naturally acid sandy soil (pH 4.2 measured in 0.01 M CaCl2) by multiple treatments, but only when the pH and calciu… Show more

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Cited by 15 publications
(5 citation statements)
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“…A continuous fenamiphos application could select these adapted microorganisms in soil, especially in areas where the soil pH is optimum for the growth of Microbacterium species. Other studies have demonstrated the importance of soil pH in the development of microbial enhanced degradation of non-fumigant and fumigant pesticides Warton and Matthiessen 2005). Furthermore, this study demonstrated that for predicting the efficacy of a nematicide not only the soil physical and chemical parameters are uniquely important factors.…”
Section: Phylogenetic Analysismentioning
confidence: 89%
“…A continuous fenamiphos application could select these adapted microorganisms in soil, especially in areas where the soil pH is optimum for the growth of Microbacterium species. Other studies have demonstrated the importance of soil pH in the development of microbial enhanced degradation of non-fumigant and fumigant pesticides Warton and Matthiessen 2005). Furthermore, this study demonstrated that for predicting the efficacy of a nematicide not only the soil physical and chemical parameters are uniquely important factors.…”
Section: Phylogenetic Analysismentioning
confidence: 89%
“…Ca in its mineral form is known to interact and adsorb toxic ions, including Cd, As, Pb and Se, in contaminated environments (Cravotta-Iii and Trahan, 1999; Bradl, 2004; Gadd, 2010; García-Sánchez et al, 1999; Sheoran and Sheoran, 2006). It is also important to note that in natural soil ecosystems the pH is tightly correlated to the concentration of Ca minerals (Warton and Matthiessen, 2005). Thus, the importance of Ca to microbial community structure in the mesocosms may be related to its capacity to complex toxic ions in the soil and mitigate the increase in toxicity promoted by the observed decline in pH.…”
Section: Discussionmentioning
confidence: 99%
“…RESULTS AND DISCUSSION Ca 2+ behavior during the remediation of heavy metals containing soil using the PCPSS and the VA/PCPSS Calcium ion is a vital element for plant growth and also important for soil structure, it plays an important role for creating soil aggregates that eventually improves soil physical and chemical properties (Dontsova and Norton, 1999;White and Broadley, 2003;Warton and Matthiessen, 2005;Wuddivira and Camps-Roach, 2007). The studied soil contained Ca 2+ at concentration of 780 mg kg -1 .…”
Section: Methodsmentioning
confidence: 99%