A learning experience

[ramcononer]

Yes I am a noob to this forum but not growing. I actually had something that has never happened. I am in the midst of losing a plant. I do not know whats wrong as of 2 weeks ago it was healthy and doing fine. I put into flower and today...it's probably not going to make it. I think Nute deficiency, specifically N.

Soil Medium, proprietary blend. Unknow strain, has portrayed good characteristics in the past. Any Ideas. Low to No nutes as I prefer a more natual approach. Hence why I think Low N possibly K.

This started at the lower leaves then moved up. Not all leaves have this discoloration but 75% or more do. This was to be my last grow before going all hydro.


Check out the pic. At least if I learn what caused this I can avoid it in the future.

[ramcononer]

What is your experience level? Mid level
Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)
t5's 200 w and 245w of CFL 2700/6000
.2) Distance from tops? 2-3 inched
.3) Reflector type? (T5 stock reflector
.4) Is there a consistent fresh air supply? Yes
.5) Do you have an exhaust fan and a circulation fan? Yes
.6) What are the bulb wattages, kelvin ratings, and schedule? See above, currently on 12/12

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...) Peat moss, topsoil blend mixed with MG Moisture control
.8) Size of container. 3gal
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings?NO

Your nutrients and water:
10) Source of water? (tap, bottled or filtered)Tap
What's it's ph before adjusting? 7.0
11) Method of checking water ph. PEN
12) Method of adjusting water ph. PH DOWN
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. N/A or very light MG Blue water
14) How often are you watering between feedings, and how much per watering? water when 1st knuckle doesn't feel moisture
15) Any additives or tea's? NO
16) Are your ph levels stable, or do they fluctuate? Stable


17) What is your ingoing water's ph? ...your runoff ph? 6.2-7
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? NO

Your growroom:
19) Indoors or outdoors? Indoors
20) What size of closet, room or hut? 4x4
21) What are the temps and humidity levels while lights are on? ...With lights off? High has gotten to 81f low of 63f...normal average is 72
22) Have you seen signs of insects in the growroom? NO

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?)unknown

24) From seeds or clones? Both
25) Is this an autoflower strain?
NO

[tikiroom]

Is this the first time growing in this room or have you added something new to the room?

[ramcononer]

Is this the first time growing in this room or have you added something new to the room?

Have grown here before, other plants as well, spinach, Habenaro etc. It an open closet essentially that I shut for dark time to keep the light from my veg area out. Vegging veggies to practice dwc and aero before trying with expensive crops. There were two plants two weeks ago...both nice and green...a little amount of the above on this female...removed the male and BAM! went down hill...vegged for 6 weeks, 2 week flower. After 12/12 she went down.....

[ramcononer]

Does it look like N deficiency?

[energyefficient]

im no veteran here. but i do read and own books...


looks to me like a phosphorus and or magnesium / manganese deficiency.

did the spots show up first, or the yellowing?

[Agoblue97]

This is a link that has proved useful to me and others, so I'll pass it along again. Hope it helps some.

Text (http://cannabis.com/growing/nutrient-plant_abuse_chart_and_photos_pictures.html);)

[polishpollack]

I'm wondering if this has to do with phosphorus. I can't tell if it's too much or too little. If that blue fert you've been using is high in phosphorus, that could be it. Check the NPK values and see what the numbers are added together for the soil and anything you've added.

[Dutch Pimp]

Your problem is very similar to a problem I had about this time last year. Whatever it was? ...it was terminal.

I flushed, changed the lighting height. Nothing I did, helped...in two weeks they were both dead. Only plants I ever lost...:wtf:

[polishpollack]

DP, can you give more details on that grow, the soil, ferts, etc.?

[Dutch Pimp]

DP, can you give more details on that grow, the soil, ferts, etc.?
MG moisture control soil....MG 10-52-10 & 2 gallon pots....:rolleyes:..probably too much P....I was thinking it was light bleaching at the time. Silly me.

[polishpollack]

Oh man, no wonder. Well, the good news is we live and learn. Peace and good grows down the road.

MG is chemical fert and looks like alot of it, especially if P is 52. Way to high for this plant, in my opinion. Even I overdid it when I added the Peter's as it had a P rating of 52. This cause the plant to finish too early.

[ramcononer]

Thanks to all for the helpful post. I was thinking along those lines and I treated with an all purpose 10-10-10 liquid plant food with micronutrients. I am gonna try to save her but she doesn't look to good.

Top, new growth is even looking sub par. Ill update tomorrow to see how she is......sucks cuz she was on a roll...then all of a sudden she is fallin apart.

[ramcononer]

im no veteran here. but i do read and own books...


looks to me like a phosphorus and or magnesium / manganese deficiency.

did the spots show up first, or the yellowing?

ya know it happened so fast I can't remember. Literally days...no new changes to environment except removing the male. I was thinking maybe N or P def. so I treated with an all purpose 10-10-10....Ill give her a couple of days and see how she is doing. She is still gaining vertical growth too which is puzzling.

[ramcononer]

This is a link that has proved useful to me and others, so I'll pass it along again. Hope it helps some.

Text (http://cannabis.com/growing/nutrient-plant_abuse_chart_and_photos_pictures.html);)

Good info,
Based on that i looks like either a P def. or a PH issue. No water change though. I don't know why it would all of a sudden lock up due to ph flux. I check ph outta the tap almost everyday and very little flux. 6.8-7.0

[energyefficient]

for what its worth, i cut off anything that does not look healthy when i have problems. id cut her back and try to leave the best leaves that ya have.

[LOC NAR on probation]

what are you checking PH with ?

I ask because a nute lock out from PH just happened to us over a ph pen went bad. Looks just like yours. We found the problem early but still lost all major leaves. took about a week of getting over it and now they are coming back like mad with a new ph pen. We always keep an extra on hand because as said if found tooo late it's terminal.

[ramcononer]

Brand new ph pen....just calibrated.....maybe ill try cutting her back if I don't see improvement from the ferts
Do you cut to the stem?
Stems seem strong and healthy......