http://oregonstate.edu/dept/hort/dpd/chemkey.htm
http://www.geocities.com/SunsetStrip.../nutrients.htm
....bonbon
bonbon Reviewed by bonbon on . HELP! My plants are 6 weeks old. Almost. The bottom leaves are really yellow and white, some dying off. And the stems have purple lines in them, they arent looking good this week. I gave them Nitrogen and PH down because it was too high, not sure I fed the PH correctly.... help please! Rating: 5