A lesson in toxicity.

DoubleAtotheRON

DoubleAtotheRON

Well-Known Member
Here we have 4 clones from the same mother. They all looked the same and healthy a couple of days ago. I typically feed at 1000-1100ppm every time. As an experiment, I fed the top 2 1650ppm 2 days ago just to see what would happen. As you can see, they did not take it well.. typical clawing, drooping, and on their way to dying out. I flushed them today with ph’d plain water to recover them. (They are 12 days into flower). I’ve always tried to keep it simple when it comes to nutes, but I wanted to know where the line was. If you think you have over done it on nutes, have a look at these examples, and you’ll know. 2C561165-3D07-4BBA-B94F-216DB16E3955.jpeg86D0EAF9-5420-4D37-B6E0-A18582380FAB.jpeg

^^^Healthy flowering clones fed at 1000-1100ppm02E5F4C4-4457-4CF6-8111-FE77630513E5.jpeg
^^^^Overfed!!.. and clawing, drooping.
 
xtsho

xtsho

Well-Known Member
A good percentage of all issues people have growing cannabis is from overfeeding. The advice many give to correct problems caused by overfeeding is to add even more of something. In fact if you had just posted those plants and asked what was wrong with them the first response you would have gotten would be to add calmag, the next would be to tell you you had a deficiency and to add XYZ. The third would be someone posting that very misleading illustrated plant deficiency chart. The last thing anyone would advise would be to cut back the nutrient strength which is what the actual problem is caused by.
 
polishpollack

polishpollack

Well-Known Member
Even 1000 ppm is too high. You don't use such a high level for soil typically, because soil traps nutrients. If that soil has nutes already, then you are way too high when adding that much more. but if the plants look good, then they look good. just don't give any more in the last week or so. How much you give is dependent on how often you feed. 1000ppm might not be so terrible if you don't feed very often. people need to remember that once all that fert goes in, it's difficult to get it out in a soil grow. unfortunately, xtsho is correct about the responses you'd get in this forum. There's many threads here just like what was described. I've really cut back on participating here because so much info is wrong and when I try to correct it, I get flamed. This is typical internet behavior that is more cult than accurate, more stupid than knowledgeable. It's unfortunate that you over fed the plants, but you had to learn what would happen, what are the visible signs that show it's a mistake. You've learned something and that's the good news.
 
DoubleAtotheRON

DoubleAtotheRON

Well-Known Member
polishpollack said:
Even 1000 ppm is too high. You don't use such a high level for soil typically, because soil traps nutrients. If that soil has nutes already, then you are way too high when adding that much more. but if the plants look good, then they look good. just don't give any more in the last week or so. How much you give is dependent on how often you feed. 1000ppm might not be so terrible if you don't feed very often. people need to remember that once all that fert goes in, it's difficult to get it out in a soil grow. unfortunately, xtsho is correct about the responses you'd get in this forum. There's many threads here just like what was described. I've really cut back on participating here because so much info is wrong and when I try to correct it, I get flamed. This is typical internet behavior that is more cult than accurate, more stupid than knowledgeable. It's unfortunate that you over fed the plants, but you had to learn what would happen, what are the visible signs that show it's a mistake. You've learned something and that's the good news.
Click to expand...
I over fed them on purpose. I was just curious how 1650 would affect them. I’ve grown and finished a few hundred plants by feeding every time at 1000-1100ppm. Even clones get 1000 from the very beginning, and finish out great. I’m sure that this works out for us because we have the ability to semi flush at every feeding since we have those big runoff trays so things don’t get built up in the soil. My last grow (see link below), I never watered with plain ph’d water throughout the entire grow. We usually run around 100 plants at a time, and take a break during the summer, but this summer we wanted to run a small grow to experiment with a different medium, and cut out mammothP to see how yields are going to be affected. So losing a couple is no big deal, it’s alll in the name of R&D.
 
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