The adsorption of diquat by soil colloids as a factor in herbicide applications

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dc.contributor.advisor Crankshaw, William B. en_US Ehlers, Dennis H., 1950- en_US 2011-06-03T19:31:15Z 2011-06-03T19:31:15Z 1974 en_US 1974
dc.identifier LD2489.Z78 1974 .E4 en_US
dc.description.abstract The adsorption of dicquat dibromide as affected by available soil moisture and concentration of diquat was studied on Blount silt loam soil in east central Indiana. The diquat under varying concentrations and soil moisture conditions was topically applied to twenty-seven, 1/2 meter square sample plots with the surface vegetation removed to expose bare soil.The soil texture of the research site was determined using the Bouyoucos hydrometer method. From the texture analysis, the highly adsorptive montmorillonite clay was determined to be the major adsorptive surfaces available to the diquat radical. With the montmorillonite clays being the major adsorptive surfaces, it was concluded that the applied diquat was completely adsorbed by the soil colloids.Using a modified Langlois-Stemp-Liska procedure for pesticide extraction and clean-up, the major effect of the herbicide concentrations and the soil moisture conditions on the adsorptive capacity of the soil colloids for the diquat radical was determined to be at the level of degrees of adsorption.Ball State UniversityMuncie, IN 47306 en_US
dc.format.extent iii, 25 leaves ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Herbicides. en_US
dc.subject.lcsh Colloids. en_US
dc.subject.lcsh Soil chemistry. en_US
dc.subject.other Ball State University. Thesis (M.S.) en_US
dc.title The adsorption of diquat by soil colloids as a factor in herbicide applications en_US Thesis (M.S.)--Ball State University, 1974. en_US
dc.identifier.cardcat-url en_US

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  • Master's Theses [5454]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

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