Sethunathan, N. (1989) Microbial degradation of commonly used agrochemicals in tropical rice culture. Documentation. Central Rice Research Institute, Cuttack, Orissa, India.
![[img]](http://eprints.icrisat.ac.in/style/images/fileicons/application_pdf.png) |
PDF
- Published Version
Restricted to ICRISAT researchers only |
Abstract
This study used gas-liquid chromatography and radiotracer techniques to assess the degradation processes of some commonly used pesticides in tropical rice culture. Some of the findings include: 1) Carbofuran was more persistent in subsurface soil than in the surface while both isomers of HCH were more persistent in the surface soil: 2) In general the three insecticides (Parathion, methyl parathion and fenitrothion) appeared to be less persistent under flooded condition; 3) Carbofuran and its hydrolysis product, 7-phenol are more mobile in non-puddled plot due to high percolation rate; 4) Repeated applications of carbofuran to a flooded soil held at 35 deg C. led to a distinct enrichment of carbofuran-degrading principle. The enrichment culture developed at 35 deg C and the bacterium (Arthrobacter spp.) isolated from this culture completely mineralized carbofuran to carbon dioxide with in 2 to 5 days: 5) The rate and pathway of methyl parathion degradation was governed by soil type and temperature.
| Item Type: | Monograph (Documentation) |
|---|---|
| Uncontrolled Keywords: | Oryza sativa; Crop production; Agricultural chemicals; Microbial degradation; Tropics; Pesticides; Arthrobacter |
| Author Affiliation: | Department of Environment, Central Rice Research Institute, Cuttack - India |
| Subjects: | Soil Science and Microbiology |
| Divisions: | General |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 05 Sep 2014 07:20 |
| Last Modified: | 05 Sep 2014 07:20 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/13340 |
Actions (login required)
 |
View Item |
