Soil quality changes resulting from the application of the fungicides mefenoxam and metalaxyl to a sandy loam soil

Changes in functional diversity of soil microbial community with addition of antibiotics sulfamethoxazole and chlortetracycline

“…This may indicate that antibiotics could act as nutrients for soil microbial growth (Schmitt et al 2005;Thiele-Bruhn and Beck 2005;Westergaard et al 2001). Similar results had been reported that fungicides and insecticides increased bacterial biomass because they were also used as carbon and nutrient sources for microbial growth (Cycoń et al 2006;Monkiedje et al 2002;Wang et al 2004).…”

Isolation and Identification of Bacteria from Chlorpyrifos Polluted Soil

“…When compared with control (6.8) soil. The results of bacterial count of rhizospheric soil are detailed in Fig 1. It was found that the highest bacterial density (CFU/g soil) in control (74.1×10 6 and 72.8×10 6 ) in both plant of cockscomb and marigold rhizospheric soils. Then the bacterial diversity was gradually declined …”

“…Chlorpyrifos may persists in environment up to one year (half-life of 60-120 days), have low water solubility (2 mg/L) and soluble in organic solvents. Several studies on widely-used pesticides have already shown that pesticide application leads to changes in soil nutrient levels and alterations to soil microbial activity, diversity and genetic structure (Monkiedje et al, 2002;Ros et al, 2006). The soil Pollutants may also affect the bacterial composition and diversity and can have significant impact on the functioning of multiple components of the soil ecosystem (Wan et al, 2014).The present study aimed to investigate the effect of chlorpyrifos on soil bacterial diversity.…”

Changes in Soil Chemical Properties and Microbial Activities in Response to the Fungicide Ridomil Gold Plus Copper

“…After sieving to a maximum particle size of < 2 mm, the soil was temporary conserved in sealed plastic bags. Exchangeable NH 4 + was determined immediately after sampling on field moist and sieved sub-samples. Subsamples for the determination of available P ground and sieved to pass a 0.5 mm sieve.…”

“…Numerous studies have documented microbiological changes in soil ecosystem as a result of pesticide application [3]. During a laboratory study comparing the effect of metalaxyl and mefenoxam on a soil quality sandy loam, it was found that both compounds exerted adverse effects on microbiological properties of the soil by decreasing the population of free nitrogen-fixing bacteria, by altering enzymatic activities and by stimulating the N transformation and some plant nutrient availability in soil [4]. However, information is scarce concerning the effect of Ridomil gold plus on soil quality.…”