The correlation of Diuron (DCMU) phytotoxicity with soil factors by algal and oats bioassays

Code (CO)	MSI99P0395
Author (AU)	Pillay, A. R.
Title - English (ET)	The correlation of Diuron (DCMU) phytotoxicity with soil factors by algal and oats bioassays
Document Type(DT)	Periodical article
Date of publication (DP)	1979
Series (SE)	Revue agric. sucr. Ile Maurice
Source (SO)	58(3): 153-157
Language of text (LT)	En
Language of summaries (LS)	En Fr
Abstract (AB)	Chlorella (NM 1) algal bioassay and oats pot trials were used to study the effects of five soil factors on the toxicity of diuron in soil. Correlation and regression analyses of the results showed that diuron toxicity in soil was closely related to organic carbon content and to percentage of herbicide adsorbed. Clay and silt did not seem to affect the toxicity of diuron. From the regression studies, it was concluded that recommendation of dosages of diuron based on soil organic carbon content could be acceptable. However, recommendations based on adsorption values, which accounted for 96 per cent of the variability in ED 50 values, would be more reliable for the soils studied. A statistical comparison of data from algae and oats assays showed that the rapid algal bioassay could replace higher plant assays in the study of adsorption of herbicides and their dosage recommendations.
Descriptors - English (DE)	SOILS DIURON HERBICIDES WEED CONTROL
Descriptors - Geographic (DG)	MAURITIUS
Sort Key 1(K1)	Soils
Date record entered (DA)	1992-02-21
Language of analysis (LA)	En
Affiliation (AF)	Mauritius Sugar Industry Research Institute
Location (LO)	LIB
Processing status (PS)	CAT
MSIRI Staff (MS)	FC