I
Irongoat
Guest
Recently on another forum a grower proposed adding a calcium supplement to her potting mix for newly-purchased paphs. I suggested she check her water and fertilizer before doing that. Then I thought, hmm. I really don't know what *my* water provides in the way of minerals, though I know that our water is generally considered low in dissolved minerals.
Do NYC growers supplement calcium for any of their paphs? And how in the heck do you convert mg/L to ppm?
The 2006 water report states an average of 5.4 mg/L of calcium from 334 samples and an average of 1.2mg/L magnesium from 319 samples from Catskill system, and an average pH of 7.3.
John
Do NYC growers supplement calcium for any of their paphs? And how in the heck do you convert mg/L to ppm?
The 2006 water report states an average of 5.4 mg/L of calcium from 334 samples and an average of 1.2mg/L magnesium from 319 samples from Catskill system, and an average pH of 7.3.
John