MOVEMENT AND DEGRADATION OF MANCOZEB FUNGICIDE AND ITS METABOLITES, ETHYLENETHIOUREA AND ETHYLENEUREA IN SILTY CLAY LOAM SOIL

被引：11

作者：

CALUMPANG, SMF

MEDINA, MJB

ROXAS, NP

MAGALLONA, ED

机构：

[1] Pesticide Toxicology and Chemistry Laboratory, National Crop Protection Center

[2] Department of Animal Nutrition, Institute of Animal Science

[3] Department of Entomology College of Agriculture, University of the Philippines, College Laguna, Los Banos

来源：

INTERNATIONAL JOURNAL OF PEST MANAGEMENT | 1993年 / 39卷 / 02期

关键词：

MANCOZEB; ETHYLENETHIOUREA; ETHYLENEUREA; ETHYLENEBIS-DITHIOCARBAMATE FUNGICIDES; DEGRADATION; LEACHING; SOIL; PHILIPPINES;

D O I：

10.1080/09670879309371783

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

The persistence and movement of mancozeb and its metabolites, ethylenethiourea and ethyleneurea, in silty clay loam soil under Philippine field conditions were investigated using soil columns and radiotracer techniques. The degradation of mancozeb, ethylenethiourea (ETU) and ethyleneurea (EU) in soil showed a half-life of 2.9, 2.5 and 4.8 days, respectively. Mancozeb remained in the first 2-5 cm of the topsoil fraction for 12 days only. The maximum depth of permeability for ETU was 8 cm up to 14 days after application, which was the same for EU up to 21 days. ETU degraded rapidly, with a 78% reduction at 3 days after application. It is concluded that the recommended agricultural practices for mancozeb application, under lowland conditions, should not lead to groundwater contamination by ETU.

引用

页码：161 / 166

页数：6

共 18 条

[1]

Blasquez C.H., Residue determination of ethylene thiourea (2-lmidazotidinethione) from tomato foliage, soil and water, Journal of Agricultural and Food Chemistry, 21, pp. 330-332, (1973)

[2]

Bontoyan W.R., Looker J.B., Degradation of commercial ethylenebisdithiocarbamate formulation to ethylene-thiourea under elevated temperature and humidity, Journal of Agricultural and Food Chemistry, 21, (1973)

[3]

Bontoyan W.R., Looker J.B., Kaiser T.E., Gaine P., Olive B.M., Survey of ethylenethiourea in commercial ethylenebisdithiocarbamate formulations, Journal of the Association of Official Analytical Chemists, 55, 5, pp. 923-925, (1972)

[4]

Calumpang S., Barredo M., Magallona E.D., Ethylenebisdithiocarbamate fungicide residues: Effect of processing cabbage and cucumber fruit, Philippine Agriculturist, 71, 4, pp. 397-401, (1988)

[5]

Calumpang S., Barredo M., Roxas N.P., Magallona E.D., Mancozeb and ethylenethiourea residues in cucumber, soil and stored commercial formulation, Philippine Agriculturist, 72, 3, pp. 381-390, (1989)

[6]

Czegledi-Janko G., Determination of the degradation product of ethylene bisdithiocarbamates by thin layer chromatography and some investigations of their decomposition, Vitro. Journal of Chromatography, 31, pp. 89-95, (1967)

[7]

Doneche B., Seguin G., Ribereau-Gayon P., Mancozeb Effect on Soil Microorganisms and Its Degradation in Soils, 135, 6, pp. 361-366, (1983)

[8]

Graham S.L., Hansen W.H., Effect of short term administration of ethylenethiourea on thyroid function of the rat, Bulletin of Environmental Contamination and Toxicology, 7, 1, pp. 19-25, (1972)

[9]

Graham S.L., Hansen W.H., Davis K.J., Perry C.H., Effect of 1 year administration of ethylenethiourea on the thyroid of the rat, Journal of Agricultural and Food Chemistry, 21, 3, pp. 324-329, (1973)

[10]

Ethylenethiourea, Pure and Applied Chemistry, 49, pp. 675-689, (1977)

← 1 2 →