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At the other CT tomato farm, over-the-top herbicide was used. More details about these systems may be obtained by emailing Jeff Mitchell at mitchell@uckac.edu and requesting the DVD video that was distributed to participants of CT2005 and that describes these CT tomato systems.

application. If the irrigation water delivery system is changed to either subsurface drip, or low pressure overhead delivery, we

Overhead, low pressure irrigation system used in no- till corn production field, Pierre, SD, 2005

Strip tiller implement used in processing tomato beds in conservation tillage fields, Sano Farms, Firebaugh, CA 2005

Future CT tomato systems

There may be long-term economic and resource conservation benefits from substantially reducing tillage in production systems relative to what is done today. To develop sustained no-till rotations that include tomatoes, a number of changes will be required with respect to optimizing management of the overall production system. Current systems, - including the approach we pursued in this study, - rely primarily on surface, or gravity irrigation systems that necessitate clean, or clear furrows for efficient and uniform water

hypothesize that production costs might be lower, surface residue might be left in place, soil disturbance could be avoided, and weeds might be better controlled without cultivation. These management systems, as well as other production system alternatives, are now being evaluated.

Fresh market tomato field with barley cover crop residue, Firebaugh, CA 2003

Jeff Mitchell is a Cropping Systems Specialist with the University of California, Davis at the Kearney Agricultural Center in Parlier, California. Contact information: 9240 South Riverbend Avenue, Parlier, CA 93648; Phone (559) 646-6565; Fax (559) 646-6593; E-mail: mitchell@uckac.edu

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