STP1112

    Starch Encapsulated Herbicide Formulations: Scale-Up and Laboratory Evaluations

    Published: Jan 1992


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    Abstract

    Non-chemically modified cornstarch effectively encapsulates herbicides. Thousand pound quantities of atrazine, alachlor and metolachlor were prepared by extrusion followed by drying, grinding, and sieving to give the desired size granules. Leaching potential of these formulations was evalulated using soil columns and bioassay techniques. Large quantities of products were sent to cooperators in 10 states for evaluation along with commercial formulations.

    Keywords:

    starch, encapsulation, herbicides, slow release, groundwater


    Author Information:

    Wing, RE
    research chemistsresearch agronomist, Northern Regional Research Center, Agricultural Research ServiceAgricultural Research Service, U. S. Department of Agriculture, Purdue University, PeoriaWest Lafayette, ILIN

    Carr, ME
    research chemistsresearch agronomist, Northern Regional Research Center, Agricultural Research ServiceAgricultural Research Service, U. S. Department of Agriculture, Purdue University, PeoriaWest Lafayette, ILIN

    Doane, WM
    research chemistsresearch agronomist, Northern Regional Research Center, Agricultural Research ServiceAgricultural Research Service, U. S. Department of Agriculture, Purdue University, PeoriaWest Lafayette, ILIN

    Schreiber, MM
    research chemistsresearch agronomist, Northern Regional Research Center, Agricultural Research ServiceAgricultural Research Service, U. S. Department of Agriculture, Purdue University, PeoriaWest Lafayette, ILIN


    Paper ID: STP16870S

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP16870S


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