This was done with the Hoya R72 filter on an unconverted camera (on a tripod). Please bear in mind that raw files for each camera make and model will behave differently. So, the 1st step might not work perfectly for your particular camera. If you are able to set a Custom WB on a patch of grass or any foliage with the IR filter on your lens, you can skip the first step. Since I'm not able to set a custom white balance on the D300, I shot in raw on Auto WB.
1. White balance in Adobe Camera Raw:
Make sure that your Workflow Options in ACR are set to Adobe RGB and 16bits. In Adobe Camera Raw, I used the eye dropper tool to set the white balance. Click on any foliage in the shot to do so. Once you've adjust contrast, saturation, etc, to your liking open to CSx.
2. Auto Levels. I've found this to be essential, even when I've been able to set a custom white balance in-camera.
3. Swapping channels: Go to Image\Adjustments\Channel Mixer.
For Output Channel: Red, change Red to 0% and Blue to 100%
For Output Channel: Blue, change Red to 100% and Blue to 0%
An extra swap if you'd like:
For Output Channel: Green, change Green to 0% and Blue to 100%
4. Do what you usually do and save.