Premium
Adsorption Interactions in Soils between Amitrole and s‐Triazines
Author(s) -
Nearpass D. C.
Publication year - 1971
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1971.03615995003500010022x
Subject(s) - soil water , adsorption , environmental chemistry , environmental science , soil science , chemistry
A close correlation was found between adsorption of amitrole (3‐amino‐1,2,4‐triazole) and prometone (2‐methoxy‐4,6‐bis‐isopropylamino‐ s ‐triazine) on 45 soils, indicating similar effects of varying soil properties. Prometone was more strongly adsorbed relative to amitrole by organic matter at a water/dry matter ratio of 100, than in soils at water/dry matter ratio of 2. Although the predominating adsorbed species were the protonated or cationic forms of the two herbicides, an adsorption interaction occurring on organic matter cannot be fully explained by attributing adsorption to electrostatic effects. Amitrole and prometone adsorption on organic matter was fully reversible. Amitrole displacement by s ‐triazines depended on the acidity constant of the competitive base.