Vol. 57

Title:
Sprayer Set-up and Calibration to Band Spray for Field Nursery Weed Control

Author:
Mark Halcomb

pp: 611

Abstract:
INTRODUCTION

Cultivation or herbicides can be used to maintain a weed-free strip 30 to 46 cm (12 to 18 in.) wide during the first year of nursery production. The strip can be widened annually to a maximum of 0.6 to 0.9 m (2 to 3 ft) on each side of the row. There is no need to spray middles that can be later cultivated. Vegetation in the middle is not harmful to the nursery crop, as long as a sufficiently wide, weed-free strip is maintained in the row. Vegetated middles reduce erosion and provide support for traffic. While band spraying reduces the amount of chemical required by 33% to 50%, it can require a longer application time, since the middle must be driven 1 to 2 times with a small tractor.

RIGGING to BAND SPRAY

While it is possible to rig a nozzle on the rear of a spray tank to spray a band along the row, the nozzle cannot be watched as easily as one mounted in front.

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