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Full-Text Articles in Life Sciences
Formulation Enhanced Transport Of A Soil Applied Herbicide, V. P. Evangelou, Louis M. Mcdonald, Sandra Prima
Formulation Enhanced Transport Of A Soil Applied Herbicide, V. P. Evangelou, Louis M. Mcdonald, Sandra Prima
KWRRI Research Reports
Because pesticides are applied as formulated particles and the affinity of the active ingredient for the formulation is higher than for the bulk water, we hypothesized that a formulation complex could affect active ingredient transport. Our objectives were to investigate the nature and extent of surfactant-atrazine-clay/oxide surface interactions. When atrazine and an anionic surfactant were dried onto plain or Fe-coated sand and leached, atrazine concentrations in the initial leachate were lower in the Fe-coated sand treatment. This was likely due to an electrostatic attraction between the sand and surfactant. When a nonionic surfactant was used, atrazine concentration in the initial …
Suppression Of Smooth Brome By Atrazine, Mowing, And Fire, Gary D. Willson, James L. Stubbendieck
Suppression Of Smooth Brome By Atrazine, Mowing, And Fire, Gary D. Willson, James L. Stubbendieck
Department of Agronomy and Horticulture: Faculty Publications
Burning and mowing were evaluated in 1989-1991 at Pipestone National Monument, Minnesota, as alternatives to atrazine to suppress smooth brome (Bromus inermis Leyss.) and to affect seeding success of big bluestem (Andropogon gerardii Vitman). Atrazine was the only treatment that significantly reduced smooth brome tiller density (-77% 1990; -70% 1991) as compared to unburned controls. Neither burning (-16% 1990; -37% 1991) nor mowing (-16% 1990; +10% 1991) resulted in significant reductions. Sod-seeded big bluestem failed in all treatments in both years. The failure of chemical and non-chemical management to affect sufficient smooth brome control for big bluestem seeding …
G96-1299 Agricultural Management Practices To Reduce Atrazine In Surface Water, Thomas G. Franti, Fred Roeth, Robert N. Klein, David L. Holshouser, Andrew P. Christiansen, James A. Schild, Gary L. Zoubek
G96-1299 Agricultural Management Practices To Reduce Atrazine In Surface Water, Thomas G. Franti, Fred Roeth, Robert N. Klein, David L. Holshouser, Andrew P. Christiansen, James A. Schild, Gary L. Zoubek
University of Nebraska-Lincoln Extension: Historical Materials
Ways to reduce atrazine availability, reduce the amount of water runoff, and reduce the impact of the first runoff are covered here. Each year growers face many decisions when planning for a new growing season, including selection of an economical weed control program. Because of their ease of use and effectiveness, many producers use preemergence herbicides to control weeds. Because of its low cost, corn and sorghum growers often select atrazine or an atrazine combination. Nebraska corn growers annually apply an estimated 6.3 million pounds of atrazine. Atrazine is an effective and low-cost herbicide, but there is a hidden cost …