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Full-Text Articles in Engineering

Development Of Gis-Based Chemical Distribution Maps From Sprayer Performance Data, Joe D. Luck, Santosh Pitla, Rodrigo S. Zandonadi, Scott A. Shearer Jun 2009

Development Of Gis-Based Chemical Distribution Maps From Sprayer Performance Data, Joe D. Luck, Santosh Pitla, Rodrigo S. Zandonadi, Scott A. Shearer

Department of Biological Systems Engineering: Conference Presentations and White Papers

Pesticide application is an essential practice on farms in Kentucky where glyphosate resistant crops and no-till farming strategies are becoming more popular. Off-rate pesticide application errors are the result of incorrect concentrations applied to an area of the field and may result from velocity changes along the spray boom while the sprayer is turning, pressure changes across the width of the spray boom, and changes in effective boom height due to undulating terrain. In an attempt to estimate potential errors resulting from sprayer turning movements, a method was developed to compare the differences in application areas between control sections across …


Evaluation Of A Terrain Attribute Model For Locating Areas Suitable For Grassed Waterways In Agricultural Settings, Joe D. Luck, Adam C. Pike, Santosh Pitla, Tom Mueller, Scott A. Shearer Jun 2009

Evaluation Of A Terrain Attribute Model For Locating Areas Suitable For Grassed Waterways In Agricultural Settings, Joe D. Luck, Adam C. Pike, Santosh Pitla, Tom Mueller, Scott A. Shearer

Department of Biological Systems Engineering: Conference Presentations and White Papers

Grassed waterways placed in high water flow zones substantially reduce erosion in agricultural fields. A recent study proposed a statistical model for waterway planning for a farm in the Outer Bluegrass physiographic region of Kentucky. The logistic regression model identified where channel erosion was likely to occur based on elevation-derived terrain attributes. The objective of this study was to test their model in fields located in the Western Coal Fields physiographic region where soils differ substantially. Model predictions corresponded well with known areas of concentrated flow (i.e., maps of existing waterways, surface drains, and observations of erosion). The geographic inference …