Response of Biochemical Properties in Agricultural Soils Polluted with 4-Chloro-2-methylphenoxyacetic Acid (MCPA) under Severe Drought Conditions

The soil moisture content can vary the behavior of biochemical activity and its incidence on herbicides. objective this manuscript was to assess, under controlled laboratory conditions, whether a prolonged 75-day drought affect 4-chloro-2-methylphenoxyacetic acid (MCPA) herbicide properties in three agricultural soils (Typic Xerofluvent, SA, Typic Haploxeralf, SB, Vertic Chromoxert, SC). During 75 experimental days, two irrigation levels were maintained: (1) watered during period, (2) non-watered soils, where no water supplied period. evolution different depending status. In decreased until day 35 after initiating experiment, whereas SB SC, parameters days 25 45, respectively. application increased inhibition properties. MCPA degradation occurred at 45 60 starting incubation process, These results suggest that persistence conditions increases, consequently increases contamination.