Leaching of chlorpyrifos in peat soil of an oil palm plantation in Malaysia

M. Halimah, M. Zulkifli, Y. A. Tan, O. Hasnol, Ismail Sahid

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The aim of the paper is to determine the leaching and persistence of chlorpyrifos in a Malaysian peat soil. Leaching of chlorpyrifos in this peat agroecosystem was conducted at an oil palm plantation in Sessang, Sarawak, East Malaysia. The insecticide chlorpyrifos was applied as an aqueous solution into the trench which was approximately 1 meter around the palm base at the rate of 3 L/palm. The insecticide was applied at the manufacturer's recommended (2.11 gm ai/trunk) and double the recommended dosage (4.22 gm ai/trunk). The control plot was not treated with insecticide. Soil samples were collected at different depths (viz. 0-15, 15-30 and 30-45 cm) at the following intervals; -1 (before treatment), 0,1, 3, 7, 14, 21, 30 and 60 days after treatment. The recovery of chlorpyrifos as obtained from GC equipped with FPD was determined by analyzing soil samples spiked with chlorpyrifos standard solutions at five different levels viz., 2, 20, 40, 60 and 80 μg/kg. The recovery and relative standard deviation of chlorpyrifos in the spiked soil samples ranged from 93 to 97% and 1.1 to 9.6%; respectively. The results obtained were good and reproducible with high recovery rates and therefore the extraction methods were used for determination of chlorpyrifos in soil samples collected from the field. Chlorpyrifos was detected at all levels of the soil profile (0-45 cm), when applied at the recommended and double the recommended dosages. Chlorpyrifos was detected in the soil up to day 5 after treatment when applied at the recommended dosage. Chlorpyrifos was also detected in the soil at 0-45 cm depth up to day 7 after treatment at double the recommended dosage. Therefore, chlorpyrifos has very low persistence in the soiland therefore may have low impact on the environment.

Original languageEnglish
Pages (from-to)209-215
Number of pages7
JournalAmerican-Eurasian Journal of Sustainable Agriculture
Volume5
Issue number2
Publication statusPublished - Apr 2011

Fingerprint

Chlorpyrifos
peat soils
Malaysia
chlorpyrifos
Elaeis guineensis
leaching
Oils
Soil
plantations
soil sampling
Insecticides
insecticides
dosage
Borneo
agroecosystems
peat
aqueous solutions
soil profiles
soil

Keywords

  • Chlorpyrifos
  • Double recommended dosage
  • Leaching
  • Oil palm plantation
  • Peat soil
  • Recommended dosage

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Food Science
  • Horticulture

Cite this

Halimah, M., Zulkifli, M., Tan, Y. A., Hasnol, O., & Sahid, I. (2011). Leaching of chlorpyrifos in peat soil of an oil palm plantation in Malaysia. American-Eurasian Journal of Sustainable Agriculture, 5(2), 209-215.

Leaching of chlorpyrifos in peat soil of an oil palm plantation in Malaysia. / Halimah, M.; Zulkifli, M.; Tan, Y. A.; Hasnol, O.; Sahid, Ismail.

In: American-Eurasian Journal of Sustainable Agriculture, Vol. 5, No. 2, 04.2011, p. 209-215.

Research output: Contribution to journalArticle

Halimah, M, Zulkifli, M, Tan, YA, Hasnol, O & Sahid, I 2011, 'Leaching of chlorpyrifos in peat soil of an oil palm plantation in Malaysia', American-Eurasian Journal of Sustainable Agriculture, vol. 5, no. 2, pp. 209-215.
Halimah, M. ; Zulkifli, M. ; Tan, Y. A. ; Hasnol, O. ; Sahid, Ismail. / Leaching of chlorpyrifos in peat soil of an oil palm plantation in Malaysia. In: American-Eurasian Journal of Sustainable Agriculture. 2011 ; Vol. 5, No. 2. pp. 209-215.
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