kovidkough
Well-Known Member
same thing with my white lsd auto from msnl week 4 flower i will upload photos when I can but I've read this article from dept of agri and I think im sold on getting RO, didnt have issues until flipping to flower other 3 strains are ethos cresendo also yellowing and my jack herer is totally fine my sour D is 3 weeks ahead of the rest and isn't showing cal def. I think my issue is my root ph is probably above 7 and when I try to drive it down with phosphoric acid the buffer in the tap water nulls it.Im in berkshire, but on a well. I have 6.9 out my tap.
I will say this though, I have grown autos this year, maybe 15 or so of them. I have had 3-4 just totally stop at a certain point. No water uptake, all yellow, no more growth. No explanation that I can find, they just stop while the other ones keep going for a few more weeks. I feel like autos have been a totally different experience than the traditional grows. Post a few pics, sometimes you just get bad genetics on the autos and with such a short period any mistakes and you are sorta stuck.
Water Quality: pH and Alkalinity
Recently, some growers have expressed concern about the "high pH" of their irrigation water and its potential adverse effects on plants. The purpose of this article is to allay some of these concerns by pointing out the difference between "high pH" and "high alkalinity". Alkalinity and pH are...
ag.umass.edu