STUDIES ON PERSISTENCE AND DEGRADATION OF PROPINEB IN SOILS AND ITS EFFECT AS A SOURCE OF ZINC FOR POTATO
| dc.contributor.advisor | Hanumantharaju, T. H. | |
| dc.contributor.author | ASHOKA, K. R. | |
| dc.date.accessioned | 2017-06-09T06:04:04Z | |
| dc.date.available | 2017-06-09T06:04:04Z | |
| dc.date.issued | 2009-07-02 | |
| dc.description.abstract | A field and laboratory experiments were conducted to determine the persistence and degradation of propineb in soils and its effect as a source of zinc for potato. Propineb residue degraded faster in potato under field condition when applied at 1400 and 2800 g a.i ha*1. However, the propineb was noticed in soil on the day of propineb spray. Degradation was faster at lower dose than higher dose of application with the half-life values of 2.3 and 2.5 days. The safe waiting period of 3.3 and 4.3 days was recommended for potato when applied at 1400 and 2800 g a.i ha-1 of propineb. Among the fungicide and among fertilizers, the higher potato tuber yield was recorded in 1400 g a.i ha-1 with B:C ratio of 4.4 compared to other treatments. The zinc content of potato leaves and potato tuber was higher in 2800 g a.i ha*1 of propineb followed by 1400 g a.i ha'1 of propineb, 1400 g a.i ha-1 of metiram, 1850 g a.i ha-1 of Zn-EDTA, 0.2 % ZnS0 4 .7 H2 0 and 20 kg ha*1 ZnS04.7H20 compared to control. Persistence and degradation was studied in Malur and Hassan soils at 25 and 50 Mg g '1 with field capacity and half-field capacity moisture regimes. The degradation pattern followed the first order kinetics. Degradation of propineb was faster under filed capacity than half-field capacity moisture regimes at both rates in both the soils. Higher degradation was noticed in Malur soil than Hassan soil at both the rates of application and moisture regimes. The half-life values ranged from 6.5 to 7.1 days for Malur soil and 6.9 to 7.1 days for Hassan soil when applied at 25 and 50 |ig g*1 of propineb under field capacity. Under half-field capacity the half-life ranged from 7.1 to 7.9 days for Malur soil and 9.2 and 9.8 days when applied at 25 and 50 jig g-1 of propineb. | en_US |
| dc.identifier.other | Th-9395 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810018977 | |
| dc.language.iso | en | en_US |
| dc.pages | 119 | en_US |
| dc.publisher | University of Agricultural Sciences GKVK, Bangalore | en_US |
| dc.sub | Soil Science and Agriculture Chemistry | en_US |
| dc.subject | null | en_US |
| dc.theme | PERSISTENCE AND DEGRADATION OF PROPINEB IN SOILS | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | STUDIES ON PERSISTENCE AND DEGRADATION OF PROPINEB IN SOILS AND ITS EFFECT AS A SOURCE OF ZINC FOR POTATO | en_US |
| dc.type | Thesis | en_US |