Howard i know
Member
Hi all, hoping I can gain some insight into whats happening here.
Growing in Raised 4x4 beds - 16 AK47 plants in each - 1000w hps - Recycled organic mix on its 2nd run - temps are hitting 94 - humidity low 30's. Feeding only rain water with the occasional AACT. Top dressed with EWC/Basalt rock dust recently.
The problems I'm seeing in the bud development clearly may all be a result of the high temps and the effect of those high temps on microbial soil life and I'm in the process of re-jigging the exhaust scrubber/fan so that it can flow a bit more. But it would be good to get some 2nd professional opinions as I don't recall having such a pronounced problem as this before and I might be missing something.....
Everything was good up until week 3 of flower, in fact the best I can remember, but now the growing tips seem more strap like, sometimes curled under sometimes curled up. Bud development is dry, wispy lacking substance - embarrassing really. The lower leaves all went through a noticeable curling up and dropping off phase that seems to have tapered off now - thankfully. At first I thought it might be a sulphur or zinc problem so I foliar fed some chelated trace elements but it hasn't really helped. Then I thought nitrogen might be lacking and resorted to a salt Nitro-cal mix at a mild EC of 1.2. Again not much change. Tried a Calphos (eggshells/vinegar) mix as well. Now I'm thinking perhaps magnesium or boron are having something to do with it.
Like I say I can't help but think everything is due to the heat but if anyone has seen this kind of development before it would be great to hear from you. Organic farmers preferred but not prejudiced against hydro/soilless either way.
Growing in Raised 4x4 beds - 16 AK47 plants in each - 1000w hps - Recycled organic mix on its 2nd run - temps are hitting 94 - humidity low 30's. Feeding only rain water with the occasional AACT. Top dressed with EWC/Basalt rock dust recently.
The problems I'm seeing in the bud development clearly may all be a result of the high temps and the effect of those high temps on microbial soil life and I'm in the process of re-jigging the exhaust scrubber/fan so that it can flow a bit more. But it would be good to get some 2nd professional opinions as I don't recall having such a pronounced problem as this before and I might be missing something.....
Everything was good up until week 3 of flower, in fact the best I can remember, but now the growing tips seem more strap like, sometimes curled under sometimes curled up. Bud development is dry, wispy lacking substance - embarrassing really. The lower leaves all went through a noticeable curling up and dropping off phase that seems to have tapered off now - thankfully. At first I thought it might be a sulphur or zinc problem so I foliar fed some chelated trace elements but it hasn't really helped. Then I thought nitrogen might be lacking and resorted to a salt Nitro-cal mix at a mild EC of 1.2. Again not much change. Tried a Calphos (eggshells/vinegar) mix as well. Now I'm thinking perhaps magnesium or boron are having something to do with it.
Like I say I can't help but think everything is due to the heat but if anyone has seen this kind of development before it would be great to hear from you. Organic farmers preferred but not prejudiced against hydro/soilless either way.
