Butachlor degradation in tropical soils: Effect of application rate, biotic-abiotic interactions and soil conditions
Butachlor degradation in tropical soils: Effect of application rate, biotic-abiotic interactions and soil conditions
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DOI：
10.1080/03601230600851141
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发表时间：
2006-01-01
影响因子：
2
通讯作者：
Chowdhury, A.
中科院分区：
文献类型：
--
作者：
Pal, R.;Das, P.;Chowdhury, A.
在受控实验室条件下，研究了丁草胺（N-丁氧基甲基-2-氯-2',6'-二乙基乙酰苯胺）在稻田粘壤土冲积（AL）土壤（典型udifluvent）和沿海盐渍（CS）土壤（典型endoaquept）中的降解特性。施用量包括田间施用量(FR)、2倍FR(2FR)和10倍FR(10FR)。孵化研究在 30 摄氏度、有或没有腐熟牛粪 (DCM)、最大持水能力 (WHC) 的 60% 和浸水的土壤条件下进行。半衰期值取决于土壤类型和丁草胺的初始浓度。丁草胺在 AL 土壤和浸水条件下用 DCM 改良的土壤中降解较快。微生物降解是土壤中丁草胺降解的主要途径。
The degradative characteristics of butachlor (N-Butoxymethyl-2-chloro- 2',6'-diethyla-cetanilide) were studied under controlled laboratory conditions in clay loam alluvial (AL) soil (Typic udifluvent) and coastal saline (CS) soil (Typic endoaquept) from rice cultivated fields. The application rates included field rate (FR), 2-times FR (2FR) and 10-times FR (10FR). The incubation study was carried out at 30 degrees C with and without decomposed cow manure (DCM) at 60% of maximum water holding capacity (WHC) and waterlogged soil condition. The half-life values depended on the soil types and initial concentrations of butachlor. Butachlor degraded faster in AL soil and in soil amended with DCM under waterlogged condition. Microbial degradation is the major avenue of butachlor degradation from soils.