problem to my little cannabis plants

karharias · Sep 21, 2009

Hi there!
I'm back after 2 years! Well where is the Greek section in this forum?

Anyway I have problems with my young plants. Can anyone help? This is happened before 2-3 days and keep the problem growing with my plants.

What I should do to repair my plants and abvoid to be this happened again?

Please answer in "easy way reading and understanding english"

madnugs · Sep 21, 2009

i believe you have a nutrient burn, try flushing the plant with just water, it will come around. good luck!

karharias · Sep 21, 2009

madnugs said:
i believe you have a nutrient burn, try flushing the plant with just water, it will come around. good luck!

hey, thanks for the quick reply!!

by "flushing" what do you mean? What i understand is put the plants under running water so the nutrients get flushed away. Is this correct? Or do you mean for the next 3-4 waterings just use plain water?

itsgrowinglikeaweed · Sep 21, 2009

I agree with the nute burn. But, I don't think its bad enough to need a flush. I think if you just water it for a week or two it'll be ok. Overall it looks good.
Good luck!

karharias · Sep 22, 2009

itsgrowinglikeaweed said:
I agree with the nute burn. But, I don't think its bad enough to need a flush. I think if you just water it for a week or two it'll be ok. Overall it looks good.
Good luck!

Im thinking the same. Just water for the next 1 or 2 weeks.

Thanx for the quick answers mates!

jwop · Sep 22, 2009

karharias said:
Im thinking the same. Just water for the next 1 or 2 weeks.

Thanx for the quick answers mates!

this is not a nute burn ... it is a deficiency of nitrogen

Died Evil · Sep 22, 2009

jwop said:
this is not a nute burn ... it is a deficiency of nitrogen

I seen the photo and thought the same thing...nitrogen deficiency usually starts from the bottom and works its way up.

What kinda of nutrients you using?

And for the Greek....YAHSU!!!

jwop · Sep 22, 2009

Died Evil said:
I seen the photo and thought the same thing...nitrogen deficiency usually starts from the bottom and works its way up.

What kinda of nutrients you using?

And for the Greek....YAHSU!!!

if you are in veg give it 321 ... if you are in flower give it 231

you are doing good ... but your plant is telling you that it wants a little more nitrogen than you are feeding it

karharias · Sep 22, 2009

Yashu mate!
I use BioBizz products.

BioHeaven and RootJuice for the first and a half month. Maybe I overdid it with the nutrients.

karharias · Sep 22, 2009

jwop said:
if you are in veg give it 321 ... if you are in flower give it 231

you are doing good ... but your plant is telling you that it wants a little more nitrogen than you are feeding it

What is 321 and 231?

itsgrowinglikeaweed · Sep 22, 2009

Like most plants, a marijuana plant uses its bottom leaves kind of like a bank. If there is too much fertilizer in the soil it will try to STORE the excess nutrients in the bottom leaves. If there are not enough nutrients in the soil it will TAKE what it needs from the bottom leaves.
Your plant is nice and dark green except for the few bottom leaves. Thats why I think its and excess of nutrients not a deficiency. If it were nitrogen deficient the leaves would not be so green. Your plant had an excess of nutrients, it tried to store them in the bottom leaves, and it burned them slightly.
I think jwop is referring to fertilizer that is NPK (3-2-1) for veg and (2-3-1) for flower. Which are the approximate RATIOS that you would want. However you do not need those specific numbers of NPK.

karharias · Sep 22, 2009

thanx mate!

jwop · Sep 22, 2009

karharias said:
What is 321 and 231?

npk values

karharias · Oct 2, 2009

Hello again

I followed your instructions and for the past 10 days i watered the plants only with distilled water (no nutrients) .

Now as you can see from the pictures one of the plants looks actually worse but i cannot figure out what is wrong with it. One other starts to look worse (picture3) and the other 3 plants look ok. The temperature while the lamp is on is 29 degrees Celsius so i think it is not burnt by the heat.
Any advice will be greatly appreciated!!

itsgrowinglikeaweed · Oct 2, 2009

Look at the pictures on this page> http://www.ganjaguerrilla.net/index.htm
Compare them to your plant. Consider what you were feeding it before.
Ok I looked up your BioHeaven and RootJuice. Neither one of those is actually fertilizer. They are just fancy additives. Your supposede to use them WITH fertilizer. Your going to want to get some real food now. Your plants are pretty much starving at this point.
I THINK the BioHeaven and RootJuice accellerated the uptake of the organic nutrients in your soil giving your plant the appearance of over fertilization. But all those soil nutrients have since been used up and now your plant is starving. It does look like multiple deficiencies now. You could try a well rounded organic fert like Fox Farms Grow Big. Something that has micro as well as macro nutrients.

karharias · Oct 16, 2009

The plants is OK now! Flashing with water for two weeks, then I use Bio nutrients and everything looks fine!

BUT I have problem, again, with another plant. Look this photos.. this plant is about one and a half meter tall and she is six months old!!! This situation is complicated but the plant looks fine until this problem. Why this happened? I use only water and for 5 times I use nutrients and then again only water.

itsgrowinglikeaweed · Oct 16, 2009

Glad to hear the other plants have improved.
First of all, you should not cut those leaves off. Take a picture with them still on the plant. Even though they are damaged the plant can still use them. And it helps to know from where on the plant those leaves came.
Spots are often caused by PH problems. Do you check your PH?
The other leaf that has faded out looks like a Mg deficiency. You may have nutrient lockout due to high or low PH. I would start by checking the PH.

karharias · Oct 17, 2009

thanks for the reply! I'll check the PH today.

Krack420 · Oct 17, 2009

Get a good PH meter and test the PH. Those earlier pictures look like a nute lockout more than a burn. Flushing helped the PH which probably allowed the nutrient to be taken up by the plant. Nute lockout can be from improper PH or too high of another nutrient, so flushing helps both problems. It will come back if you don't check your PH and maybe even your EC. If growing in soil, you can probably get away with not having an EC meter, as long as your PH is checked often and kept in the right range. Be sure to not use too many additives, and focus on the main grow and bloom. If you have no way of testing EC, start at half strength and slowly work your way up. You have to be careful though, because there are a few brands where 1/2 strength would even be too much.

karharias · Oct 24, 2009

back to my first set of plants. They are doing fine, out of the 5 only 1 was male, and the 4 others have started to flower.

One of them though looks a bit different on the flowers and it starts to show little signs of burn. This is the tallest of the plants, and is 10-15cm away from the cooltube.

So two questions. Why do the flowers look different and why is my plant burning?

pictures 1-2 are from the plant with the problem, picture 3 is from a healthy plant.

problem to my little cannabis plants

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