agriculture and temperature metrics

[Zolar V]

I am searching for metrics relating to temperature trends and past and present agricultural developments within the state of Alaska. Any help would be nice.

 

Also i am searching for an exhaustive tool to measure the nutrient density of soil along with the metric data on various species of staple food type plants and their subspecies.

The exact metrics i am looking for are of course, temperature ranges that the plant can live in, nutrient absorption rates, the range of time for growth.