Sorption, dissipation and enzymatic activity of bispyribac-sodium in rice straw biochar amended soil
| dc.contributor.advisor | Pervinder Kaur | |
| dc.contributor.author | Sharma, Neha | |
| dc.date.accessioned | 2019-10-07T09:38:59Z | |
| dc.date.available | 2019-10-07T09:38:59Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | The present investigation was undertaken to study the effect of rice straw and its biochar amendment on sorption and dissipation of bispyribac-sodium and its effect on soil enzymes and bacterial population. The rice straw biochars were prepared, characterized and investigated for their potential to affect fate of bispyribac-sodium. The adsorption-desorption kinetics of bispyribac-sodium was well described by pseudo second order kinetic model and Freundlich isotherm (R2>0.99). KFads increased from 1.55 to 29.57 μg1−ng−1mln on amendment of soil with URS and biochars. The variation in the adsorption capacity of bispyribac-sodium amongst rice straw and its biochars amended soils was in line with surface area of the amendments. Desorption of bispyribac-sodium decreased on amendment of soil with rice straw and its biochars and it varied from 90.45 to 95.20 and 60.95 to 89.50% in unamended and amended soil, respectively. Adsorption and desorption of bispyribac-sodium varied significantly with the herbicide concentration, amendment type and amendment level of rice straw and its biochars in soil. The half-life of bispyribac-sodium ranged from 23.13 to 28.60 and 7.55 to 18.44 days in unamended and amended soil, respectively and it was inversely related to their adsorption capacity in amended soil. Bispyribac-sodium application and amendment of soil with rice straw and its biochars significantly affected the soil dehydrogenase, alkaline phosphatase activity and bacterial population. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810130444 | |
| dc.keywords | Sorption, Dissipation, Bispyribac-sodium, Dehydrogenase, Alkaline phosphatase | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 101 | en_US |
| dc.publisher | Punjab Agricultural University, Ludhiana | en_US |
| dc.research.problem | Sorption, dissipation and enzymatic activity of bispyribac-sodium in rice straw biochar amended soil | en_US |
| dc.sub | Chemistry | en_US |
| dc.subject | null | en_US |
| dc.theme | Sorption, dissipation and enzymatic activity of bispyribac-sodium in rice straw biochar amended soil | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Sorption, dissipation and enzymatic activity of bispyribac-sodium in rice straw biochar amended soil | en_US |
| dc.type | Thesis | en_US |