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Seeding and Planting Plots for Crop Performance Evaluation Using Gps-rtk Auto Steering
R. N. Klein, J. A. Golus, A. S. Cox
West Central Research and Extension Center University of Nebraska - Lincoln North Platte, Nebraska

Crop performance evaluation plots are seeded both on and off the University of Nebraska West Central Research and Extension Center. Plots off the Center must match the producer’s rows for pesticide application, cultivation, ditching, irrigation, fertilization and any other operations performed in the fields. With row crops the producer blank-plants the plot area before we can follow up with planting the plots. This means that we have to wait for the producer to plant in the field. Blank-planting dries out the soil and can plant weed seeds, especially if a physical marker is used. If precipitation occurs, it becomes difficult to determine where the blank planted rows are. With small grains in narrow row spacing the objective is usually to seed the plots before the producer seeds the rest of the field. This requires a lot of flagging, and the plot still may lack the precision desired for research. With GPS-RTK auto steering, row crops can be planted with near perfect guess rows, which increases accuracy in the plot. It also greatly reduces the possibility of cultivation blight. With no till cropping practices such as skip row, the crop residues are not destroyed in the unplanted rows. With small grain plots, a great amount of time is saved in laying out and flagging the plots. A narrow guess row in small grain plots is very difficult to harvest. Auto steer greatly increases the accuracy of guess row width, making harvesting much easier and more accurate. This paper will discuss the equipment needs and how to set up plots using GPS-RTK auto steer.