Degradation of chlorpyrifos, fenamiphos, and chlorothalonil alone and in combination and their effects on soil microbial activity
作者:Brajesh Kumar Singh、Allan Walker、Denis J. Wright
DOI:10.1002/etc.5620211211
日期:2002.12
The effects of repeated application and of combinations of pesticides on their degradation rates in soil and on some soilmicrobial properties were studied. Repeated application of chlorpyrifos did not modify its degradation rate, whereas repeated applications of fenamiphos and chlorothalonil suppressed their own rates of degradation. When applied in combination, the presence of chlorothalonil reduced
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0334455A1
公开(公告)日:1989-09-27
Process for the preparation of keto-diesters which comprises reacting an alkyl ester of a 2-alkenoic acid and an aldehyde in the presence of a catalyst, wherein an aldehyde having two formylic hydrogen atoms is reacted in liquid phase solution with the ester.