Like minime said, irrigation, irrigation, irrigation. If blood loss is a concern, direct pressure over the wound for 15mins will stop most bleeders. Thereafter you can irrigate the wound with clean water. It doesn't have to be sterile.
Cover with a clean bandage and clean the wound daily. I would hesitate to close the wound in the field as this could lead to infection.
If an unsightly scar is a consideration, would closure could still be attempted a few days later if there is no infection in the wound.(No, not with duct tape or superglue - see your doc! )

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