Influence of Some Pollutants and Fertilizers on Degradation of Oxadixyl in Soil

몇 가지 오염물질과 비료의 처리가 살균제 Oxadixyl의 토양중 분해에 미치는 영향

  • Moon, Young-Hee (Department of Argricultural Chemistry,College of Argriculture,Chonbuk National University) ;
  • Kim, Yong-Hwi (Department of Argricultural Chemistry,College of Argriculture,Chonbuk National University) ;
  • Kim, Young-Seok (Department of Argricultural Chemistry,College of Argriculture,Chonbuk National University)
  • 문영희 (전북대학교 농과대학 농화학과) ;
  • 김용휘 (전북대학교 농과대학 농화학과) ;
  • 김영석 (전북대학교 농과대학 농화학과)
  • Published : 1997.12.30

Abstract

The degradation of fungicide oxadixyl in soil amended with manure, chemical fertilizers, heavy metals and detergent was studied. The degradation of oxadixyl in the soil was slow, but became to be fast after the lag phase of about 14 days. The half-life was 10.5 days. The degradation rate was accelerated largely by the amendment of manure. Potassium also promoted the degradation rate but nitrogen and phosphate did not. The heavy metals inhibited the degradation rate, in order of Ni, Cd, Cr, Cu, and Zn. The degradation rate was declined greatly with the addition of synthetic detergent. The microbial biomass and the respiration rate in the soil were increased by the amendment of manure and chemical fertilizers, but decreased by the addition of heavy metals and cleaner. The degradation rate of oxadixyl was positively correlated with the microbial biomass and the respiration rate.

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