Growing in Acidic Soil

Dowd1

Dowd1

Well-Known Member
Ok ive posed this question before so im going to try and explain it a different way.Before i start i want to explain I am NOT looking for a fix it idea.I want to know why marijuana will grow in an acidic growing medium.I have seen first hand that it can happen and yes it maybe more of a pain in the ass and yes i know its not the most ideal way to go but im overwelmed with the fact it does happen despite what everyone that ive had the oportunity to argue with think.
Now with that being said,I have had the oportunity to take care of a freind of mines plants while he was away.I followed his directions to the last letter.His plants are in a mix of only-Peat,vermiculite and perlite.A very acidic soil when runoff is measured.(i made my own mix using his soil recipe and measured runoff at 3.5)I mixed up 5 gal. of nutes with flora three part system (he had a measuring cup with lines that marked out how much of each different nute) after mixing i added 1 capful of ph up.that does not seem like very much of an up considering 1 capful raises ph 4.0 points in one gallon of water.so in 5 gallons im barely moving 1 point.
by the way he uses no ppm meter or ph meter.
I did this for the week and i watched plants grow.Now from what everyone here tells me it might as well be impossible yet i have seen this with my own eyes.
My question is,why with ph being such a key factor in growing does it seem my friends plants defy all that is preached on all growing forums?
Why will they grow in such a hostile enviroment? (hostile meaning only wacked out ph)
Like i said before im not looking for a fix it, im mearly trying to understand.I know its a weed and will grow almost anywhere.but the logic that is beat into our heads here doesnt seem sound at my freinds house
 
The whole thing behind PH is how the roots absorb different nutrients. From what I understand the little hairs on the roots of your plants secrete a chemical that breaks down different nutrients and minerals in the soil into a form that the root can absorb and then distribute to the rest of the plant. When the PH is off, the chemical that the hairs release isn't as effective at breaking down and processing the nutrients and minerals. Then you have partially absorbed and broken down nutrients and minerals forming into salt around the hairs. Now the hairs can't secrete the chemical as well to break stuff down and the roots can't absorb as much, so your plant slowly loses more and more of the nutrients in the soil. You can grow in a soil that isn't exactly 7.0, it's just that 7.0 is the best for the processes to do what they need to do. Your end result just wont be as much as it could have been if your PH was right.

Hope that helped.
 
I just watched a video from green house seed co. They were growing kalishnikova and did a week by week report in video (sorry dont know how to post links.google kalishnikova grow fromm greenhouse seed co.)the video starts off 1 week before 12/12 planted in rockwool with a ph of around 5.7,but the whole grow is done with chemical nutes at a ph of 5.5.The guys in video said that the clone was put into rockwool but they had it in a soil container when it went to flower only assuming medium is still rockwool
The video does state that the grow was done under lab conditions with humidity and temps controled lights on and off, but the buds on these girls were sick
 
now i think this situation is almost similar to mine only they arent jacking up ph to compinsate
acidic soil
acidic nutes
awsome looking plants
Am i not seeing something here?
 
well with everyones informative replies ive come to the conclusion that yes plants can be grown in acidic soil,you just have to adjust ph of nutes accordingly.
apparently noone here has the ability to use your imagination or the ability to question what so many here state as fact.
Ive been told on this site you cant grow in acidic soil,or your yield would be shit.Ive seen different through friends and the greenhouse seed co. vid.all done with acidic soil,and all come out looking awsome.
so in conclusion im deleting my account here with roll it up.This site is good for a beginner.There are alot of people here that can help noobs along there path,but there reaches a point when the basics arent enough and everyone here wants to blast you with only and nothing but the basics.
Think outside the box maybe youll discover there is more than 1 way to grow a plant.
The first people to discover marijuana and other plants will grow in water were probably looked at as kooks,mearly because they thought outside the box
 
Most annuals will grow fine in soil with a ph from 6-8. Anything lower than 6 and some macros will be locked out by pH and locked by the over abudance of some micro nutrients. Close to 8 and over then micro nutrients will be locked out. Its all about keeping it in range without big swings.....soil/soiless grows that is.
 
you grow in acidic soil and your gonna run into nothing but problems in flowering... I would say that they can do alright in veg but your gonna get major lockouts if it's acidic when they start to flower
 
Dowd1 said:
I just watched a video from green house seed co. They were growing kalishnikova and did a week by week report in video (sorry dont know how to post links.google kalishnikova grow fromm greenhouse seed co.)the video starts off 1 week before 12/12 planted in rockwool with a ph of around 5.7,but the whole grow is done with chemical nutes at a ph of 5.5.The guys in video said that the clone was put into rockwool but they had it in a soil container when it went to flower only assuming medium is still rockwool
The video does state that the grow was done under lab conditions with humidity and temps controled lights on and off, but the buds on these girls were sick
Click to expand...
Hydro vs Soil are too different beasts. GHS grow Hydro....
 
i have been growing in bog peat, i just flush it well beforehand...... dont know how its going to affect the bloom as max316420 said
i plan on potting on into regular compost asap tho
 
max316420 said:
you grow in acidic soil and your gonna run into nothing but problems in flowering... I would say that they can do alright in veg but your gonna get major lockouts if it's acidic when they start to flower
Click to expand...
thats not true.the buds that are grown are in some cases better than what i get following what everyone around here preaches.
if you watch the greenhouse video they have a banner at the bottom of the screen stating temp ph and npk ratios and in the begining of the video they state it is in rockwool.
Now with rockwool ph of around 5.6 and nutes added at ph 5.5,this is exactly the opposite you have stated
i will try to post a link
 
They are growing in Rockwool and they are grow hydro. Even a handfed hempy bucket is considered hydro. The roots do not need to be constantly submerged in water to be considered hydro.
 
EC of the nutrient solution and runoff. They have been growing the same way for many years. They do stray fromm time to time but if its in Rockwool its hydro, some consider it 100% soiless. either way you treat them as a hydro grow, the medium contain no nutrients of it own. Inhert........
 
watchhowIdoit said:
They are growing in Rockwool and they are grow hydro. Even a handfed hempy bucket is considered hydro. The roots do not need to be constantly submerged in water to be considered hydro.
Click to expand...

While the true definition varies from expert to expert, hydroponics is basically the growing of plants without soil. The word “Hydroponic” is derived from the Greek words – “Hydro” which means water and “Ponos” which means labor. True hydroponics is growing plants in water without any type of media

Ok you got me.Rockwool even in a loose state is still not considered soil.
 
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