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Magnésium déficiency ??

Mrxog

New member
Hello icmag !!

First of all i m a new grower. I will first describe my setup. I have a tent of 1.4 m2, a 400 w mh for growth and a 600 w hps for flowering. The 400 w mh is 40 cm from the plants. My extractor 495 m3 and two fans one of which is oscillating.my soil is plagron Grow mix . The strains that i have are Ripper haze from ripper seeds and orange candy from philosophers seeds.
My first mistake was to under water. They were in 1 liter pot and I gave only 10 centiliter per plant which is very little but I realized my mistake and I corrected it to about the tenth day after the germination.
My second mistake was to water with baby bottled water which was very rich in calcium from the beginning until the last watering. I read that the exess of calcium blocked the magnesium. When I saw that the leaves became yellow I transplanted them and think that it was going to fix things but it continues, growth is very slow I am 21th day of growth and some are miniscules. I buy magnesium sulphate which I count give in foliar but I would first like to have confirmation of the diagnosis. Today after a friend's advice I water with demineralized water with power roots from plagron pure enzym and only 2 ml / 5 liters of terra grow.
If I forget to specify some important thing do not hesitate to tell me and I put pictures that I think will help the diagnosis. Thank you to those who will take time to answer me. Sorry for my English I try to be as comprehensible as possible.
photos from the moment I discovered the problem until today. ( photos in my album named magnésium deficiency? )
 

Mrxog

New member
I found this post for a Better diagnosis

How long has this problem been going on? Since the eleventh day after the germination
What STRAIN are you growing?
What was the establishingtechnique? (seed or clone?)
What is the age of your plants?
How long have they been in the soil mixture they are in now?
How Tall are the plants?
What PHASE (seedling, vegetative or flower) are the plants in?
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot)
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)
What Nutrient's are you using?
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*
How often are you feeding?
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
What method of pH test was administered? Using Strips? pH pen?
How often are you watering?
When was your last feeding and how often are you feeding?
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor? (Relative Humidity)
What is the canopy temperature?
What is the Day/Night Temp? (Include fluctuation range)
What is the current Air Flow? (cfm etc.)
Tell us about your ventilation, intake exhaust and when its running and not running ?
Is the fan blowing directly at plants?
Is the grow substrate constantly wet or moist?
Is your water HARD or SOFT?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
Are you using water from a water softener?
Has plant been recently pruned, cloned or pinched?
Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's
 

Mrxog

New member
I found this post for a Better diagnosis

How long has this problem been going on? Since the eleventh day after the germination

What STRAIN are you growing?14 Ripper haze from Ripper seeds and 4 orange candy from philosopher seeds ( all feminised seeds )

What was the establishingtechnique? (seed or clone?) seeds

What is the age of your plants? 27 days from the day i put the seeds to germinate and 22 days from the first leaves

How long have they been in the soil mixture they are in now?1 week

How Tall are the plants?10 TO 15cm

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

What Technique are you using? (SOG, SCROG etc) nothing

What size pots are you using? (Include how many subjects to pot) 18 pots - 6 liters pots

What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Grow mix from plagron

What Nutrient's are you using? plagron terra

How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*
How often are you feeding?i gave nutrients today and only 2ml/5liters

What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) i only gave one time and didn t mix


What is the pH of the "RUN-OFF"?6.5

What method of pH test was administered? Using Strips? pH pen? using strips

How often are you watering? 1 time a week since i transplanted them

When was your last feeding and how often are you feeding?today and only gave one time

What is the distance to the canopy?FROM THE LIGHT 40 cm

What is your RH Factor? (Relative Humidity) the minimum sometimes is 40 % but most of the time it s 55 %

What is the canopy temperature? 26 MAX and 22 min

What is the Day/Night Temp? (Include fluctuation range)night it s minimum 18 and max 22


Tell us about your ventilation, intake exhaust and when its running and not running ?24hours

Is the fan blowing directly at plants?nop

Is the grow substrate constantly wet or moist?nop

Is your water HARD or SOFT?used bottled water for babies brand mont roucous ( french brand ) the water is rich in calcium but my last watering today i used demineralised water




Has plant been recently pruned, cloned or pinched?nop only transplanted last friday

Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's[/QUOTE] no no and no
 
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