| 摘要 |
An apparatus for use with a tray that has a crop disposed thereon. The apparatus includes a vehicle A-frame attached to an earth traversing vehicle; two adjustment members attached to the vehicle A-frame, each of which is adapted to receive and hold a deployment beam in a fixed attitude; a rotatable roller which is operable to receive and elevate the tray from a point of rest; and a spray manifold operably interconnected with a source of chemical to be applied, which is adapted to apply a chemical solution to the bottom surface of the tray to control the growth of harmful, undesirable organisms.
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