Study on the Behavior of Chlorpyrifos-methyl Residue in Cotton

doi:10.3321/j.issn:1000-7091.2003.z1.033

Abstract

Abstract: The residual dynamics and final residues of chlo rpy rifos-methyl in Co tton were studied throughfield experiment s and chromatog raphic analyses.The half-lives of chlorpy rifos-methyl were 4.92-6.09 day s incotton and 4.76-6.95 days in soil.Being t reated 3-4 times for every 10 days each wi th chlorpyrifos-methyl 40 %EC at recommended dosage of 2 250 mL/hm2and double dosage of 4 500 mL/hm2,the residue of chlo rpy rifosmethylin co tton seeds 30 days aw ay from the last treatment was not detectable respectively.

Key words: Chlorpy rifos-methyl, Cotton, Residual dynamics, Gas chromatography

CLC Number:

X592

ZHANG Shao-jun, WANG Li, QIAN Xun, CHEN Yong-da, MO Tao. Study on the Behavior of Chlorpyrifos-methyl Residue in Cotton[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3321/j.issn:1000-7091.2003.z1.033.

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