Thread: Zinc deficiency?

SOIL/SOILESS

How long has this problem been going on?
about 3 days

What STRAIN are you growing?
Green crack

What was the establishing technique? (seed or clone?)
Clone

What is the age of your plants?
24 days veg 7 days into flowering(31 days old)

How long have they been in the soil mixture they are in now?
31 days

How Tall are the plants?
almost 2 ft but they are LST a little

What PHASE (seedling, vegetative or flower) are the plants in?
flowering stage

What Technique are you using? (SOG, SCROG etc)
None of those.

What size pots are you using? (Include how many subjects to pot)
10l pots(2.5gal)

What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)
Roots Organics Soil: Coco coir, Peat, perlite, pumice, bat guano, earth worm castings, fish bone meal, feather meal, green sand, mycorrihzae, glacial rock dust, soybean meal, humic acid, rock phosphate.

What Nutrient's are you using?
Roots Organics Big buddah grow, Big budda Bloom, Ancient amber, Trinity, Extreme serene, hp2, hpk, Oregonism xl, molasses, Botanicare cal mag(calcium nitrate, magnesium nitrate, iron EDTA) for my R/O water

How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*
I have only done 2 feedings. The last feeding consisted of this.
(3 gallons of r/o water)
Big buddah grow 10ml
Big budda bloom 15ml
Extreme serene 10ml
Trinity 15ml
Ancient amber 45ml
Hp2 20ml
hpk 10ml
molasses 5ml
180ppm worth of Cal Mag.

How often are you feeding?
The soil comes with food in it so I didn't feed until week 2. I used a light tea then. And I recently fed the above light tea(1/3) recommended dose about 4 days ago.

If flowering, when did you switch over to using Bloom nutrients?
Right when I switched and gave them the last tea.

What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
Cal mag, Fulvic acid, trinity, veg nutes, bloom nutes, guano addatives, extreme serene(sea kelp), molasses(later on after bubbling the tea to feed the bacteria)

What is the TDS/EC/PPM of your nutrients used?
It registered at 350ppm for the first tea, and 590 for the last tea.

What is the pH of the "RUN-OFF"?
6.38

What method of pH test was administered? Using Strips? pH pen?
Hanna ph pen

How often are you watering?
About once ever 3-4 days

When was your last feeding and how often are you feeding?
about 4 days ago. The soil had food in it but I plan to feed water, water, feed.

What size bulb are you using?
600w eye hortilux

What is the distance to the canopy?
11 inches(just moved it up to 1

What is your RH Factor? (Relative Humidity)
"Relative humidity is defined as the ratio of the partial pressure of water vapor in a parcel of air to the saturated vapor pressure of water vapor at a prescribed temperature." don't know the ratio or any of that. I do have a hygrometer, and my humidity flucuates between 52% and 70%

What is the canopy temperature?
74

What is the Day/Night Temp? (Include fluctuation range)
58-65 night/ 72-76 day


Is the grow substrate constantly wet or moist?
I let it dry out a little bit, but not completely

Is your water HARD or SOFT?
Soft

What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
R/O water

Are you using water from a water softener?
Local R/O water store

Has plant been recently pruned, cloned or pinched?
no

Have any pest chemicals been used? If so what and when?
no

This is what my plants look like too. I think it's zinc def, so I've got some chelated zinc. I'd like some other opinions before I give it though.

Plant looks like an overall healthy plant, but id say u got some micro nute deficiency. Its starting the "banding" look on ur leaves + it looks like it will start "rosetting" in a day or two. I had same problem cuz after i flushed my plants, the peaty soil retained too much water hence my plants couldnt take up the nutes. I started foliar feed (iono what nutes u use and if u can even foliar feed w nutes u use?) and after 2 days they looked a lot better. I used a 7-1-5 NPK w micro nutes, works for me. =)

Merry X-mas!

//Santa

I encountered a problem like this and was informed that it could have been the cold nights. If you notice that they seem to green up during the middle part of the light period then I would suggest bringing your night temp up to about 65-72 and see if you see a difference. I dont know when you feed but it could also be that your feeding after a dry out period of the soil, this is assuming that your soil is dry and not moist before you feed. If this is the case the problem your seeing should fix itself once these two measures are takin. Again, if these are the problems your encountering

Plants dont look like hes due to temp issues or if watered at wrong time of day....

Originally Posted by thablacksheep

I encountered a problem like this and was informed that it could have been the cold nights. If you notice that they seem to green up during the middle part of the light period then I would suggest bringing your night temp up to about 65-72 and see if you see a difference. I dont know when you feed but it could also be that your feeding after a dry out period of the soil, this is assuming that your soil is dry and not moist before you feed. If this is the case the problem your seeing should fix itself once these two measures are takin. Again, if these are the problems your encountering

I am thinking about using epsom salt as a foliar spray Its magnesium sulphate. I have heard that 1 tsp per gallon is a good measurment

I would use any micro nutes...looks like u got micro nute deficiency overall...?! Try foliar feed.

Originally Posted by justiceman

I am thinking about using epsom salt as a foliar spray Its magnesium sulphate. I have heard that 1 tsp per gallon is a good measurment

I don't know what the problem is so I figured that by going by the grow description the last thing I would do is change the nutrients because if your wrong then you just brought on another problem. just wanted to suggest small measures that wouldnt disrupt the grow. I also was not referring to changing the time of day you feed. Just implying that you could possibly experience that problem after feeding a plant when the roots are dry.

I have one of 6 plants all in the same dirt, all receiving the same everything. One of them is doing this. But it is so healthy I am just letting it grow.

Anybody else?