Journal ArticleDOI
Effect of pencycuron on microbial parameters of waterlogged soil
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TLDR
The metabolically activated microbial population was more suppressed compared to the dormant population and the DCM amendment did not seem to have any counteractive effect on the toxicity of pencycuron on the microbial variables.Abstract:
A laboratory study was conducted to monitor the effect of pencycuron [1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea] on microbial parameters of alluvial (AL) soil (Typic udifluvent) and coastal saline (CS) soil (Typic endoaquept) under waterlogged condition. Pencycuron at field rate (FR), 2FR and 10FR affected the microbial biomass C (MBC), soil ergosterol content and fluorescein diacetate hydrolyzing activity (FDHA) differentially. The DCM amendment did not seem to have any counteractive effect on the toxicity of pencycuron on the microbial variables. The change in microbial metabolic quotient (qCO2) and microbial respiration quotient (QR), indicated pencycuron induced disturbance at 10FR. Present study revealed that the metabolically activated microbial population was more suppressed compared to the dormant population.read more
Citations
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Fluorescein diacetate as a stain of metabolically active bacteria in soil [garden soil, sandy soil, sand dune soil, mull, soil from Pinus, Picea and Fagus forest, fluorescence technique, acridine orange staining, fluorescein isothiocyanate staining, plate counts]
TL;DR: Fluorescein diacetate (FDA) was applied as a vital stain to soil bacteria in pure cultures, sterilized soil, and natural soils as discussed by the authors, and nearly 80% of the isolates were stained.
Journal ArticleDOI
Effect of Insecticide-Tolerant and Plant Growth-Promoting Mesorhizobium on the Performance of Chickpea Grown in Insecticide Stressed Alluvial Soils
TL;DR: The present finding suggests that the mesorhizobial isolate endowed with multiple properties could be used to facilitate the productivity of chickpea under insecticidestressed soils.
Journal ArticleDOI
Comparative toxicity of selected insecticides to pea plants and growth promotion in response to insecticide-tolerant and plant growth promoting Rhizobium leguminosarum
TL;DR: Of the various concentrations of the two insecticides, pyriproxyfen showed comparatively more severe toxicity to pea plants by decreasing plant biomass, symbiotic attributes, nutrients (nitrogen and phosphorus) uptake, seed yield and grain protein over the uninoculated control.
Book ChapterDOI
Pesticide Interactions with Soil Microflora: Importance in Bioremediation
TL;DR: The present review focuses on the role of naturally occurring rhizosphere microbes involved in degradation or transformation of insecticides.
References
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Journal Article
The stability of microbic communities in pesticide-treated soils
TL;DR: In this paper, the impact of the fungicide metalaksil and the herbicide propachlor on the stability of microbic communities inhabiting red ferrallitic soil in four ecosystems (C Org 0.82-3.76%, pH water 6.08-6.92) within the environs of Athens, Georgia (the United States) was studied.
Journal ArticleDOI
Pencycuron dissipation in soil: effect of application rate and soil conditions.
TL;DR: Pencycuron, in general, degraded fastest in coastal saline soil and in soil amended with decomposed cow manure at 60% of maximum WHC of soil.
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