title: Effects of two different organic amendments addition to soil on sorption-desorption, leaching, bioavailability of penconazole and the growth of wheat (Triticum aestivum L.).
abstract: This study investigated the effects of sugarcane bagasse compost (SBC) and chicken manure compost (CMC) on the sorption-desorption, leaching and bioavailability of the fungicide penconazole in soil in a laboratory setting. The autoclave-treated SBC or CMC was applied at 2.5% and 5.0% (w/w). Results of batch equilibrium experiments exhibited that the sorption capacity of soils for penconazole was significantly promoted by the addition of SBC or CMC, whereas desorption of penconazole was drastically reduced; the influence was enhanced as the amount of organic amendments increased. Results of column leaching experiment indicated that the addition of SBC or CMC significantly limited the vertical movement of penconazole through the soil columns, considerably decreasing the content of penconazole in the soil leachate. Furthermore, results of bioavailability experiments demonstrated that the addition of organic amendments (SBC or CMC) remarkably influenced the uptake and translocation of penconazole, decreased penconazole accumulation in the plant tissues and increased the plant elongation and biomass. These data revealed important changes in pesticide behavior under SBC or CMC application, which should be useful for developing strategies to protect groundwater and crops from contamination from the residual pesticides in soil.
authors.affiliation: Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou, 571737, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Analysis and Testing Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
authors.forename: Jing Ling
authors.initials: JL
authors.lastname: Lin
authors.affiliation: Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
authors.forename: Lin Xian
authors.initials: LX
authors.lastname: Jia
authors.affiliation: Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Pan
authors.affiliation: Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou, 571737, China. Electronic address: yonglin608@163.com.
authors.forename: Yong
authors.initials: Y
authors.lastname: Lin
mesh_terms: D000327:Adsorption; D000818:Animals; D001682:Biological Availability; D002645:Chickens; D005659:Fungicides, Industrial / Q000032:analysis / Q000493:pharmacokinetics*; D008372:Manure; D031786:Saccharum; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis / Q000493:pharmacokinetics*; D014230:Triazoles / Q000032:analysis / Q000493:pharmacokinetics*; D014908:Triticum / Q000254:growth & development*
chemical_list: D005659:Fungicides, Industrial; D008372:Manure; D012987:Soil; D012989:Soil Pollutants; D014230:Triazoles; C087058:penconazole
keywords: Bioavailability; Chicken manure compost; Mobility; Penconazole; Sorption-desorption; Sugarcane bagasse compost