Terminal residues of Pretilachlor in Paddy under subtropical humid conditions of Punjab

摘要

Pretilachlor [2-chloro-2', 6'-diethyl-N-(2-propoxyethyl) acetanilide] is a selective pre-emergence herbicide used for the control of mostsedges and broad leaf weeds in transplanted and direct seeded paddy fields (Surjaram et al, 2014). Most of the available literature has focussed toinvestigate the behaviour of pretilachlor under coastal rice ecosystem and alpine climatic conditions (Tomar et al., 2005) of India, whereas no data has been published about its behaviour in light textured soils of Punjab where rice is widely grown in sub-tropical humid climate during which crop is exposed to very high temperature, long sunshine and rainy days from mid June to mid October. Hence, the study was conducted to determine the residue levels of pretilachlor in the post-harvest soil and rice crop grown under subtropical humid climatic conditions of Punjab.