CONTACT US

If you have any questions about the Growth & Yield Model, please contact Chris Free here: cfree@swietking.org. Chris can also answer questions about the website or field site maps.

We appreciate your feedback and will use it to improve the model and the website. Please take our survey and sign up for our update list here.

If you have any questions about our research, please contact Jimmy Grogan here: jgrogan@crocker.com. If you are unable to email, please mail us here:

Jimmy Grogan
44 Cave Hill Road
Leverett, MA 01054 USA

QUICK LINKS

Download the Growth & Yield Model here.

Download the Growth & Yield Model User Manual here.

Download maps of the field site here.

Subscribe to our mailing list for updates on our model, website, and research here.

Help improve the model and website by taking our online survey here.

Contact author/webmaster here: cfree@swietking.org.