So, i always see ppm levels used in late veg/flower are super high like 800 to 1300ppm.
I grow hempy perlite in 2 gallon. when i was in 5 gallon i could run 700 to 750 most feedings with a water feed in between using blurples then. my base water is 230ppm.
now in 2 gallon with board lights, I can’t go over 500 to 550 ppm without getting major buns on most varieties. I end up running 450 a lot of week. a few varieties can handle a bit more, but a few weeks of 600 or so and they are burnt too. this means I am feeding less than 300 ppm added nutes most of the time. I get N tox, super green plants, burns, lockouts.
ph is 5.8 to 6 on the way in. ph out goes from 6.1 to 6.3 most of the time. temp is 78 to 80 during lights on. humidity is 45 to 55%.
is this a vpd issue? avg. is usually good, but it swings with temp and humidity as the exhaust turns on to correct things.
I use GH floranova and I can’t imagine using a full dose or even half a dose. full dose is like 2000ppm without adding Si, calmag, koolbloom, etc.
is there a way to get more nutes to the plants or am i just maxing things out already with a low nute regime? on the flip side, nutes are less than 40 bucks a lb of bud.
your ph going up seems to me like they are hungry. maybe your having other issues, i know p or k def will show as dark foliage as well as “burning” on the fan leaves. they are consuming themselves.
i can’t tell if i am getting burns, or like you said K def.
I am getting tip burn which says too much nutes to me. I also feed each watering now.
also, tap water rises after being ph’d here.
@Foreigner
dial down? to like 0, lol. It seems I am using little nutes as it is, but yah, that why i go down to 450ppm (so like 220ppm of nutes).
also, I get this fading on the top leaves. like intervienal chlorosis, but it’s super slow. I thought it was just light bleaching/fade. I will try to get a pick up when lights come on. i have a very healthy plant that is doing the fading. it eats well though and jus gives burnt tips…not the other things that looks like K def.
I bump my nutrients 20% every feeding until I get to my own desire of dialed in. I never give a shit what a package label or feeding chart says. All strains are different. Micro dose and bump 20%. When I go into late veg and bloom nutrients I do the same start low and bump 20% until the plants tell you “We Good”
not really. it’s a big city. it’s not a weird place. the grass is green here so it should be ok. we definitely have a lot of chlorine, chloramine, ca, etc. the basics for fairly hard water. if anything, i could believe that leaving the water out over night might be a fruitful exercise.
I would check what Is the content of the water and see the carbonates dissolved.My tap has similar ppm value and when I checked the what was inside I had an Eureka Moment.I decided to switch to Ro and It solved all my issues which are what you describe
