Full TGIF Record # 35498
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Nalewaja, John D.; Praczyk, Tadeusz; Matysiak, Robert
Author Affiliation:Professor; and Visiting Scientists, North Dakota State University, Fargo, ND 58105
Title:Salts and surfactants influence nicosulfuron activity
Section:Research
Other records with the "Research" Section
Source:Weed Technology. Vol. 9, No. 3, July-September 1995, p. 587-593.
Publishing Information:Champaign, IL: Weed Science Society of America.
# of Pages:7
Keywords:TIC Keywords: Nicosulfuron; Adjuvants; Antagonism; Application methods; Mineral oil; Spraying Equipment; Digitaria sanguinalis
Abstract/Contents:"Experiments were conducted in the greenhouse to determine nicosulfuron activity on large crabgrass as influenced by surfactant, ammonium salt adjuvants, and various calcium, sodium, and mangesium salts in the spray carrier. Nicosulfuron activity varied with surfactant. Ammonium salt adjuvants at 0.2 M (ammonia) and sodium, calcium, or magnesium salts at 0.02 M (cation) increased or decreased nicosulfron activity dependent on the specific salt and surfactant. Spray carrier surface tension or pH of the spray solution did not relate to nicosulfuron activity. The specific ammonium component influenced nicosulfuron activity differently depending on the surfactant. Increases in ammonium nitrate concentration decreased, nicosulfuron activity with Pluronic^D]R P85 surfactant and increased activity with X-77^D]R surfactant. The response to ammonium nitrate was less pronounced at high surfactant concentrations. Sodium bicarbonate antagonism of nicosulfuron activity was overcome by ammonium sulfate and 28% aqueous nitrogen fertilizer in the presence of several oil and surfactant adjuvants. The results indicate the importance of surfactant selection for use with nicosulfuron when applied with nitrogen salts."
Language:English
References:15
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nalewaja, J. D., T. Praczyk, and R. Matysiak. 1995. Salts and surfactants influence nicosulfuron activity. Weed Technol. 9(3):p. 587-593.
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