re: Jon705's Multi Strain HPS LED Hybrid System
jon I use RO water. and I personally hate using pH up or pH down its an unnecessary chemical that isn't good for your plants either. what I do is mix all my nutes in in a 5 gallon bucket starting with one gallon of water and I take a pH reading. after that I add water by the gallon until I get the pH level I want then mix all my water mixes at that level. then its only nutes and water that get delivered to the plants
Ok I ll mix all the nutes and Zone first on the next res change and then adjust as needed to get the ph to 5.5 for veg, im running hydro bro so I ll probably still have to adjust a bit.
fishy is right about the Phosphorous and someone mentioned the magic numbers. and how it works
Air is full of moving particles. As humidity increases the amount of particles also increase. When temperatures rise these particles become more active. The combination of the two will increase static pressure.
This pressure will make it increasingly more difficult for your plants to breathe. This asphyxiation will increase until they suffocate at 55% humidity and 100ºF, or 70% humidity and 90ºF.
Vegetating plants grow best in a 55% - 65% humid & 70º-75ºF environment.
Flowering plants grow best in a 35% - 45% humid & 68º-72ºF environment.
I just set the humidity at 55% and dropped the temps a bit to 75 degrees, I have complete control of the enviroment in there, I can set the rh and temps literally anywhere I want now, the problem was there is so little info on led growing out there that I couldnt find much on the right conditions for using them.Most of what I found said 40% rh 85 degrees so thats what I did last round and I got good results, 7.75 pds but ive seen your grows so I ll try it your way.This exact same issue happened at the same time last round right after transplant, same nutes just different system, after a week or so the plants just corrected themselves and looked great...so I dont understand how its a defficiency BPN is definetly a quality product and I was running it full strength so how is there a P defficiency?
Another tip is CO2 levels are naturally higher at night which benefits plants so if you can you should light your plants during most of the midnight hours and into the early morning and let your plants sleep when CO2 levels are lower in the afternoon
right now Im running 18/6, the lights come on at 2pm and turn off at 8 am and my room is sealed, no air coming in or out exept for the vented hps which is a closed circuit, the air going through the lights never touches the air in the room.From what I understand the plants dont use co2 at night, only when the lights are on, isnt it a part of photosinthesis?Because the room is sealed I supplement co2 at 1000 ppm during veg and 1200-1500ppm during flower but only with the lights on, the ppm's are still around 600 when the lights turn on.
Thanks for all the info bro, hopfully this all helps, I just dont get how theres a P defficiency with me running BPN High yield system at full strength, theres lots of P in it. Soon I ll have a duplicate system for veg so there should be no transplant shock at all when I move them into the flower room, I think this has to be part of it because it happened right at the same time last round, a little over a week after transplant.
