Mobility of chloroacetanilide herbicide in lowland soils as affected by length of herbicide usage
Date of Publication
2004
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Chemistry
Subject Categories
Chemistry
College
College of Science
Department/Unit
Chemistry
Thesis Adviser
Ferdinand F. Fajardo
Defense Panel Member
Marissa Noel
Julita Robles
Abstract/Summary
The study aimed to identify the mobility of chloroacetanilide on six different types of soil, which were classified according to length of herbicide usage. Herbicide usage on these soils ranged from 1-20 years. In addition, the effect of length of usage of herbicide on its mobility in lowland soils was also determined.
Herbicide mobility was tested using a mini lysimeter. One-centimeter layer sections from the lysimeter were used for chemical analysis and plant bioassay tests. Results indicated that most of the herbicide residues remained in the topmost layer. Soil moisture was calculated and showed that a high level of soil moisture promoted increase in herbicide degradation.
Results were also indicated that this herbicide is of little concern as regards water table or aquifer contamination because of its very low leaching ability. Soil treated with the herbicide for a longer period of time contained lesser amount of butachlor probably because the microorganisms may have used it as a substrate.
Abstract Format
html
Language
English
Format
Accession Number
TU17485
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
iv, 60, [5] leaves : illustrations ; 29 cm.
Keywords
Herbicides
Recommended Citation
Awayan, A. d., & De Borja, J. C. (2004). Mobility of chloroacetanilide herbicide in lowland soils as affected by length of herbicide usage. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/7925