Effects of trifluralin on soil carbon mineralization at different temperature conditions

• DOI: 10.1016/j.ejsobi.2009.06.005
• Publication Date: 2009-07-13T08:22:03Z
• Authors: Hüsniye Aka Sağlıker
• Keywords: Trifluralin; Soil respiration

Abstract Trifluralin is a herbicide intensively used in Turkish cotton agriculture. The recommended field dose [(RFD), 480 g active ingredient l −1 ], 2 × RFD, 4 × RFD and 6 × RFD of this herbicide were added to virgin (previously no trifluralin applied) and cotton field soils (previously trifluralin applied) from a district (Yumurtalik, Adana) under Mediterranean climate conditions in order to determine their effects on soil microbial activity as measured by carbon mineralization at the different temperature conditions (20 °C, 25 °C and 30 °C). C mineralization of all samples was determined by the CO 2 respiration method over 30 days (20 °C, 25 °C and 30 °C at constant moist). The ratio (%) of carbon mineralization at all doses of cotton field soil at 30 °C was significantly higher than all other field dose–temperature combinations ( P