ANALISIS RESIDU PESTISIDA ORGANOFOSFAT, KLORIDA DAN FOSFAT PADA TANAMAN BUNGA KOL (Brassica oleracea L. grup Botrytis) DI PERKEBUNAN KOTO BARU PADANG PANJANG SUMATERA BARAT

Abstract

Pesticide is not only used to control pest and plant deseases, but its residue will also give negative influence. Pesticide residues were analyzed by Gas Chromatography with FPD detector. The results showed that the residue of diazinon found in cauliflower at Koto Baru was ranged from 0.0309 to 0.0654 mg/kg. Its concentration was under MRLs diazinon (0.5 mg/kg). The diazinon residues was reduced in cauliflower from 17 to 54% after normal water washing and from 23 to 100% by hot water washing. The rinse water treatment for phosphate were in the range of 1.193-1.789 ppm (normal water) and 21.560-88.530 ppm (hot water), while the chloride concentration were in the range of 0.1133-0.2266 ppm (normal water) and 0.3777-0.7554 ppm (hot water).