Imidacloprid application changes microbial dynamics and enzymes in rice soil

Mahapatra, Bibhab; Adak, Totan; Patil, Naveen; G, Guru Pirasanna Pandi; Gowda, G. Basana; Jambhulkar, Nitiprasad Namdeorao; Yadav, Manoj Kumar; Panneerselvam, P.; Kumar, Upendra; Munda, Sushmita; Jena, Mayabini

doi:10.1016/j.ecoenv.2017.06.013

Cited by 67 publications

(27 citation statements)

References 44 publications

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“…In the field studied after few days Imidacloprid application at FR dose (3.97µg/mL) was less influence to soil enzymatic activities as the Imidacloprid degraded gradually (field dissipation half-life: 26.5 to 229 days) (42). Mahapatra et al, 2017 reported that Imidacloprid dissipation was 100%, 90.45% and 76.85% from FR, 2RD and 10RD treatments respectively in sandy clay loam soil after 30 days of pesticide application (43). These results also support our results.…”

Section: Dehydrogenase Activity In Soilsupporting

confidence: 92%

Studies the Effects of Imidacloprid on Enzymatic Activities in Clay Loam Soil

Hazra¹,

Chowdhury²,

Purkait³

2019

IJTSRD

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In-vivo experiment was conducted for toxicity evaluation of Imidacloprid on soil enzyme activities (arylsulphatase, acidphosphatase and dehydrogenase activities) in the treated soil under control condition for 60 days at different application rate 3.97µg/mL (FR), 7.94µg/mL (2FR) and 39.7µg/mL (10FR). Imidacloprid has significant toxic at 2FR and 10FR doses but not on the recommended field rate (FR). Acid phosphatase activity was stimulated at FR rate, whereas at higher dose (10FR) inhibited the activity. A significant drop of dehydrogenase activity was observed irrespective of doses at 30 days of application and after that the enzymatic activity slowly increased. Application of Imidacloprid at FR to agriculture soil of Tripura is not likely to show any detrimental effects on soil acid phosphatase and dehydrogenase activities but at higher elevated doses there appear some harmful effects which was also very much transient.

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Section: Dehydrogenase Activity In Soilsupporting

confidence: 92%

Studies the Effects of Imidacloprid on Enzymatic Activities in Clay Loam Soil

Hazra¹,

Chowdhury²,

Purkait³

2019

IJTSRD

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“…Among these detected pesticides, both imidacloprid and chlorpyrifos also presented higher levels, with contents ranging from 4.1 to 39.1 and 2.0 to 43.2 ng/g dw, respectively, which were slightly lower than imidacloprid in crude pollen samples (3.2-4516 ng/g) [39] and chlorpyrifos in fresh vegetable samples (5-500 ng/g) [40]. The higher contents of imidacloprid in soils could be attributed to their longer half-lives in soil (t 1/2 >20 days) [41]. The other 9 detected pesticides in most of the soil samples were approximately 1-20 ng/g dw, which is comparable to values previously reported in food samples [25,42].…”

Section: Application In Real Samplesmentioning

confidence: 89%

Detection of Frequently Used Pesticides in Apple Orchard Soil in China by High Resolution Mass Spectrometry

Shi

Chen

et al. 2020

Pol. J. Environ. Stud.

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In this study, 10 frequently used pesticides in apple orchards from the major apple production area of China were identified through 150 questionnaires. Based on Orbitrap high-resolution mass spectrometry, a method for detecting these pesticides in soils was developed. Typically, these compounds can be extracted from dry soil samples using dichloromethane: acetone (2:1, v:v) and purified by dispersive solid-phase extraction (PSA and C18). The qualitative and quantitative analyses can be undertaken by monitoring the MS1 precursor ions under full scan mode within a mass error of <5 ppm (resolution 120000). The recoveries ranged from 68.4% to 102.4% (SD<10.5%), the matrix effects induced signal fluctuation was less than 10%, and the intra-and inter-day precisions were all below 5%. For 14 surface soil samples randomly collected from an apple orchard in China, most pesticides presented the highest detection frequencies (100%), with imidacloprid and tebuconazole showing the highest residue levels (4.1-39.1 and 9.8-350.2 ng/g dry weight, respectively). Compared with previous methods for analyzing individual or several pesticides, the proposed method represents a promising means of investigating these frequently used pesticide residues in apple orchards in China.

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“…The soil enzymes, particularly fluorescein diacetate activity (FDA), dehydrogenase activity (DHA), acid phosphatase (AcP), and alkaline phosphatase (AkP), were determined using the ultraviolet‐visible spectrophotometric procedures. Soil FDA was measured using the chloroform/methanol (2:1) method , DHA measured by the reduction of triphenyl tetrazolium chloride method , and AcP and AkP, using modified universal buffers having pH 6.5 and 11.5, respectively .…”

Section: Methodsmentioning

confidence: 99%

Understanding interaction effect of arbuscular mycorrhizal fungi in rice under elevated carbon dioxide conditions

et al. 2019

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Arbuscular mycorrhizal fungi (AMF), particularly the Glomerales group, play a paramount role in plant nutrient uptake, and abiotic and biotic stress management in rice, but recent evidence revealed that elevated CO2 concentration considerably reduces the Glomerales group in soil. In view of this, the present study was initiated to understand the interaction effect of native Glomerales species application in rice plants (cv. Naveen) under elevated CO2 concentrations (400 ± 10, 550 ± 20, and 700 ± 20 ppm) in open‐top chambers. Three different modes of application of the AMF inoculum were evaluated, of which, combined application of AMF at the seedling production and transplanting stages showed increased AMF colonization, which significantly improved grain yield by 25.08% and also increased uptake of phosphorus by 18.2% and nitrogen by 49.5%, as observed at 700‐ppm CO2 concentration. Organic acids secretion in rice root increased in AMF‐inoculated plants exposed to 700‐ppm CO2 concentration. To understand the overall effect of CO2 elevation on AMF interaction with the rice plant, principal component and partial least square regression analysis were performed, which found both positive and negative responses under elevated CO2 concentration.

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Imidacloprid application changes microbial dynamics and enzymes in rice soil

Cited by 67 publications

References 44 publications

Studies the Effects of Imidacloprid on Enzymatic Activities in Clay Loam Soil

Studies the Effects of Imidacloprid on Enzymatic Activities in Clay Loam Soil

Detection of Frequently Used Pesticides in Apple Orchard Soil in China by High Resolution Mass Spectrometry

Understanding interaction effect of arbuscular mycorrhizal fungi in rice under elevated carbon dioxide conditions

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