Greenhalgh R, Read D C
J Environ Sci Health B. 1981;16(3):363-79. doi: 10.1080/03601238109372263.
Field microplots were treated with 141 and 282 ppm fensulfothion and 37.1 and 74.2 ppm fensulfothion sulfone. These concentrations are equivalent to field treatment rates of 8.48 and 16.96 kg AI/ha, fensulfothion, and 2.23 and 4.47 kg AI/ha, fensulfothion sulfone, respectively, for banded application (10 cm wide, rows 80 cm apart). The half-lives in a sandy loam soil were 30-39 and 14-23 days, respectively. Fensulfothion sulfone and sulfide were the main derivatives found in fensulfothion treated soil. The maximum levels of these derivatives were 21.22 and 22.95 ppm, respectively for the 8.48 kg/ha treatment and 33.90 and 42.45 ppm, respectively, for the higher treatment, which occurred between 30-60 days. Carrots appeared to take up more fensulfothion from soil than rutabagas or radishes. The residue levels at harvest decreased in the order carrot peel greater than pulp greater than rutabagas root greater than peel greater than pulp. Residue levels of fensulfothion and sulfone in radishes were similar to those found in rutabagas. The ratio sulfoxide/sulfone in rutabagas ranged from 0.4-1.5 and in carrots from 1.7-7.6. This phenomenon is thought to be due to oxidative enzyme systems present in rutabagas. Dimethyl phosphorothioic acid, but not dimethyl phosphoric acid was detected (max. 1.33 ppm) in some rutabagas samples but not in carrots.
田间小区分别用141 ppm和282 ppm的丰索磷以及37.1 ppm和74.2 ppm的丰索磷砜进行处理。这些浓度分别相当于条施（带宽10厘米，行距80厘米）时田间处理剂量8.48千克有效成分/公顷和16.96千克有效成分/公顷的丰索磷，以及2.23千克有效成分/公顷和4.47千克有效成分/公顷的丰索磷砜。在砂壤土中的半衰期分别为30 - 39天和14 - 23天。丰索磷砜和硫化物是在经丰索磷处理的土壤中发现的主要衍生物。这些衍生物的最高含量，在8.48千克/公顷处理中分别为21.22 ppm和22.95 ppm，在较高剂量处理中分别为33.90 ppm和42.45 ppm，出现在30 - 60天之间。胡萝卜似乎比芜菁或萝卜从土壤中吸收更多的丰索磷。收获时的残留水平从高到低依次为：胡萝卜皮＞胡萝卜果肉＞芜菁根＞芜菁皮＞芜菁果肉。萝卜中丰索磷和砜的残留水平与芜菁中的相似。芜菁中砜/亚砜的比例在0.4 - 1.5之间，胡萝卜中在1.7 - 7.6之间。这种现象被认为是由于芜菁中存在氧化酶系统。在一些芜菁样品中检测到了二甲基硫代磷酸，但未在胡萝卜中检测到（最高1.33 ppm）二甲基磷酸。
