Deficiency and Abundance of Fertilization Elements

found via r/trees

Different qualities of marijuana

rudimentary classification of marijuana qualities, found via r/trees.

High Times top 40 1977

Nice historical reference, found via r/trees

International Cannagraphic

Price of Weed

found via r/trees

Project CBD

Safer Choice

Stickyguide classification

This is a nifty classification system, especially their flavor categories.

Tetra Labs

Tetra Labs makes Pure Gold, a very strong smoke-able extract, which I really enjoyed.

The Human Solution

court support

The Importance of Drying and Curing

This is an article I read in a magazine, and think everyone should read.