Posts by Rick Helpingstine
There are times when laboratory work is needed for media, tissue, soil and water. Here are some lab recommendations from tropical plant and soil expert Lynn Griffith.
This month we take a look at the acidity of soluble fertilizers and other factors that contribute to media pH.
Potting media and fertilizer are interrelated, both chemically and physically. The performance of one affects the performance of the other.
With all of the talk about the Zika virus these days, I thought I would do a brief blog about understanding plant virus diseases.
The following article is courtesy of tropical plant and soil expert Lynn Griffith.
Hot enough for you?
Well, it's August, and most of the country seems to be dealing with unusually high...
Lynn Griffith explains why high sulfates are not the cause of your pH issues.
Recently, a grower asked how to calculate how many pounds of nitrogen per cubic yard their incorporated controlled-release fertilizer would supply. Here's the math!
Lynn Griffith discusses the challenges growers face in identifying and dealing with herbicide injury.